BERICHTE DER BUNSEN-GESELLSCHAFT FUR PHYSIKALISCHE CHEMIE m INTERNATIONAL JOURNAL OF PHYSICH CHEMISTRY

Jahresregister von Band 90 (1986)

Herausgeber Deutsche Bunsen-Gesellschaft für Physikalische Chemie e.V. Carl-Bosch-Haus, Varrentrappstraße 40/42 D-6000 Frankfurt am Main 90

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Ichriftleiter Konrad Georg Weil Institut für Physikalische Chemie Technische Hochschule Darmstadt Petersenstraße 20 D-6100 Darmstadt Telefon (06151) 162498

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Beratergremium Ernst Ulrich Franck, Karlsruhe Friedrich Kohler, Bochum Werner Kutzelnigg, Bochum Hermann Schmalzried, Hannover Heinz Georg Wagner, Göttingen Gerhard Wegner, Mainz Albert Weller, Göttingen Herbert Zimmermann, Freiburg

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Inhaltsverzeichnis von Band 90 (1986) (Autorenverzeichnis, Sachverzeichnis, Buchbesprechungen, Personalnachrichten)

A. Autorenverzeichnis

Ache, Η . J., siehe Ζ. Β. Alfassi 84 Aguilel la, V. Μ., siehe S. Mafe . . . . 476 Alavi , M . , siehe U . Schneider 746 Alfassi, Ζ . B., HL J. Ache: Tempera

ture Dependence of the Inhib i t ion and Enhancement of Positronium Format ion by Pyridine in Decane and Toluene Solutions 84

Alter, W. , siehe G. Wedler 235 Anic, S., L j . Kolar-Anic: Some New

Details in the Kinetic Considerations of the Oscillatory Decomposit ion of Hydrogen Peroxide . 539

— — The Oscillatory Decomposit ion of H 2 0 2 Moni tored by the Potentiometrie Method wi th Pt and A g V S 2 - Indicator Electroc 1084

Antonucci , V., E. Passalacqua, N . Giordano: Thermally Oxidized I ron Electrodes for Photoelectro-chemical Application 828

Asaji, T., siehe S. Fukada 22 Asmus, K . - D . , siehe J. M ö n i g 115

Backhaus-Ricoult, M . : Diffusion Processes and Interphase Bound-ary Morphology in Ternary Metal-Ceramic Systems 684

— R. Dieckmann: Defects and Cat-ion Diffusion in Magnetite (VI I ) : Diffusion Controlled Format ion of Magnetite Dur ing Reactions in the Iron-Oxygen System 690

Baerns, M . , siehe R. Christoph 981 - siehe D . Hess 1234 Ballauff, M . : Calculation of Ne-

matic-Isotropic Phase Equil ibria in Solutions of Polymers in Ne-matic L iqu id Crystals Using the F lo ry Lattice Mode l 1053

Bartsch, Ε., Η. Bertagnolli, P. Chieux: A Neutron and X-Ray Diffraction Study of the Binary L i q u i d Aromatic System Ben-zene-Hexafluorobenzene I I . The Mixtures 34

Bauer, E., siehe W. Telieps 197 - siehe W. Wi t t 248 Bauer, J., D . H . Buss, O. Glemser:

The Electrochemical Behaviour of Manganese(II)-Hydroxide/ Magnesium Hydroxide and Manganese( I I ) -Hydrox ide /Ca l -c ium Hydroxide 809

— D . H . Buss, O. Glemser: Prepara t ion and Electrochemical Behaviour of Doped Manganese Dioxide 1220

Becker, F., siehe U . Kramer 521 Becker. R., H . Lentz, E. Hinze, G.

Nover, G. W i l l : Ein Quecksilber-porosimeter hoher Präz is ion zur Charakterisierung mineralischer Stoffe 833

Beckmann, W., R. Lacmann: On Some Aspects of the Model l ing of the Crystal Growth 963

Behm, R. J., siehe W. Hosier 205 - G Ert l , J. Wint ter l in: On the K i -

netics and Mechanisms of the Ox-ygen Induced ( 2 x 1 ) Reconstruc-t ion of N i ( l 10) 294

Behner, T., G. Elbers, S. Remme, F. Prissok, P. Stegger, G Lehmann: Intersti t ial Transi t ion Metal I m -purities as a Possible Cause of Enhanced Reactivities 698

Behrendt, F., siehe Τ. Dreier 1010 - siehe Β. Roff 1005 Bein, Th . , M . Tielen, P. A. Jacobs:

Zeolite Supported I r o n Oxide as Catalyst or Catalyst Precursor for Hydrocarbon Conversion Reactions 395

Belkoura, L. , siehe D . Schwahn . . . 339 Benderoth, G , siehe G. H . K o h i -

maier 1066 Benje, Μ., M . Eiermann, U . Pitter-

mann, K . G Weil : A n Improved Quartz Microbalance. Applications to the Electrocrystallization and -dissolution of Nickel 435

Bennemann, K . H . , siehe Η. Dreysse 245 Benz, V. W., Κ. G. Weil : Superstruc

tures on the Polar Faces of I n d ium Ant imonide 201

Bertagnolli , H . , siehe Ε. Bartsch . . . 34 - R. Ehrig, J. U . Weidner, H . W.

Zimmermann: Strukturuntersuchung konzentrierter wäßr iger C a e s i u m h y d r o x i d - L ö s u n g e n mit R ö n t g e n - und Neutronen-streuung 502

- T. Engelhardt, P. Chieux: Study of Dipo la r Interaction in L iqu id Pyridine by X-ray and Neut ron Diffraction 512

— G. Schulz: A n X-ray Study of Specific Bromine Interaction in L i q u i d Ethyl bromine and its Interpretat ion by Geometrical and Potential Models 816

— siehe H . W e i n g ä r t n e r 1167 Biasio, A . D i , siehe C. Camett i 621 Bignell, C. M . , siehe P. J. Dun lop . 351 Binder, K . : Kinetics of the Forma-

t ion of Ordered Domains on Sur-faces: Theoretical Considerations and Monte-Car lo Simulation . . . 257

— siehe A. Milchev 267 Bleijser, J. de, siehe J. Breen 1112 Blümich , Β., siehe S. Jurga 1153 Blumen, Α., G. Zumofen, J. Klafter:

Reactions in Disordered Media, Model led Through Hierarchical Structures 1048

B ö h l a n d , Τ., F. Temps, Η . Gg. Wagner: A Direct Study of the React ion C H 2 ( X 3 B , ) + C 2 H 4 in the Temperature Range 296 Κ < Γ < 728 Κ 468

B ö h m , Μ . C , P. C. Schmidt: Electronegativities and Hardnesses of the M a i n Group Elements from Density Functional Theory: Dependence on the Hybr id iza t ion of the Chemical Bond 913

Borchers, D. , A. Weiss: Structure, Hydrogen Bonds and Phase Transi t ion in Ethylenediam-m o n i u m Hexachlorometallates, [ H 3 N ( C H 2 ) 2 N H 3 ] 2 ® [ X C l 6 ] 2 e , X = Sn, Pb, Te, Pt. A 3 5 C1 N Q R and X-ray Diffraction Study 718

Bordi , F., C. Cametti: Dielectric Properties of Polyelectrolyte Solutions — I I . Behaviour of Aqueous Solutions of Carboxy-methylcellulose wi th Divalent Counterions 447

Borgmann, D. , siehe G. Wedler . . . 235 Bougeard, D. , siehe A. Grunenberg 485 Bowman, C. T.: Chemical Kinetics

Models for Complex Reacting Flows 934

Bredol, Μ., V. Leute: Thermodynamics and Reactivity in I I — V I / I I I - V I - S y s t e m s 714

Breen, J., D . van Dui jn , J. de Bleijser, J. C. Leyte: Polyethyleneoxide-Dynamics in Aqueous Solutions Studied by Nuclear Magnetic Relaxation 1112

Brettel, Κ., siehe Η. Τ. Wi t t 1015 Brickmann, J., siehe P. Η. Cribb . . 162 — siehe P. Η. Cr ibb 168 Brinkmann, U . , W. Laqua: Zur Sta

bili tät olivinischer Silikate im Sauerstoffpotentialgradienten. I I . Das Kobal ts i l ikat C o 2 S i 0 4 680

Brohl , H . , siehe G. H . Kohlmaier . . 1066 Buss, D . H . , siehe J. Bauer 809 — siehe J. Bauer 1220 Butz, T., A. Lerf: In Situ Studies of

Intercalation Reactions Via N u -clear Quadrupole Interactions . . 638

Cametti , C , siehe F. Bordi 447 — A. D i Biasio: Bulk Counterion

Diffusion in Rod-Like Polyelec-trolyte Solutions 621

Cardon, D. , siehe D . Vanmaekel-bergh 431

Carlsen, L . , siehe Η . Egsgaard . . . . 369 Carter, C Β.: Interfaces in Solid-

State Reactions 643 — Y. K o u h Simpson: Th in -F i lm Re

actions 676 Castro, Α., Ε. Iglesias, J. R. Leis, M .

E. Pena: A Kinet ic Study of the Diazotizat ion of Substituted 1-Naphthylamines 891

Cemic, L . , St. Grammenopoulou-Bilal , K . Langer: A Microscope-Spectrometric Me thod for Determin ing Small Fe 3 + -Concentrations Due to Fe 3 + -Bear ing Defects i n Fayalite 654

Chieux, P., siehe Ε. Bartsch 34 — siehe Η . Bertagnolli 512 Christmann, Κ.: Phase Transitions

in Chemisorbed Hydrogen Layers 307

Christoforakos, M . , E. U . Franck: A n Equation of State for Binary F lu id Mixtures to H i g h Temperatures and High Pressures 780

Christoph, R., M . Baerns: Model l ing of an Adiabatic, Catalytic Fixed Bed Reactor wi th Catalyst Deact ivat ion and Pore-Diffusional Effects for the Methanat ion of C O 981

Chuang, T. J., siehe I . Hussla 240 Coufal, H . , siehe I . Hussla 240 Cribb, P. H . , J. Brickmann: Time

Delayed T w o Photon Processes:

V I Inhaltsverzeichnis von Band 90 (1986) - Autorenverzeichnis

I . One Dimensional Model Approach 162

— — Time Delayed T w o Photon Processes: I I . Duschinsky M i x i n g Effects 168

Damjanovic, Α., D . B. Sepa, L j . M . Vracar, Μ. V. Vojnovic: A Comment on the ß -Fac to r and En-thalpy of Activat ion for Oxygen Reduction at Pt and A u Elec-trodes 1231

Dekäny , I . , F. Szanto, Ar. Weiss, G. Lagaly: Interactions of Hydro-phobic Layer Silicates wi th A l -cohol-Benzene-Mixtures; I . Ex-cess and Model Adsorpt ion Iso-therms 422

— Interactions of Hydrophobic Layer Silicates wi th Alcohol-Ben-zene Mixtures; I I . Structure and Composit ion of the Adsorpt ion Layer 427

Deuflhard, P., U . Nowak: Efficient Numerical Simulation and Iden-tification of Large Chemical Re-action Systems 940

Dickens, P. G , siehe S. J. Hibble . . 702 Dieckmann, R., H . Schmalzried: De-

fects and Cation Diffusion in Magnetite (VI): Point Defect Re-laxation and Correlation in Cat-ion Tracer Diffusion 564

— siehe Μ. Backhaus-Ricoult 690 Ditze, Α., F. Wasgestian: Deuterium

Isotope Effect in the Photophys-ics of Chromium ( I I I ) Alkylamine Complexes I l l

Dohrmann, J. K. , U . Sander: I n Situ Photoacoustic Spectroscopy of Electrochemically G r o w n P b 0 2 Films. Optical Constants from Photoacoustic Interference Signals 605

Dowben, Ρ . Α., siehe D . Mueller . . 281 Dreeskamp, Η., A. G. Ε. Läufer: Sol-

vent Influence on (Perylene . . . A g + ) * Exciplex Fluorescence . . . 1195

Dreier, Τ., B. Lange, J. Wolf rum, M . Zahn, F. Behrendt, J. Warnatz: Comparison of CARS Measurements and Calculations of the Structure of Laminar Methane-Ai r Counterflow Diffusion Flames 1010

Dreysse, H . , D . T o m ä n e k , Κ. H . Bennemann: Calculation of Interactions Between Adsorbates on Transit ion Meta l Surfaces 245

Driessens, F. C. M . : Thermodynamics of Ionic Solid Solutions and Its Applicat ion to the Formation and Stability of Biominerals 760

Dui jn , D . van, siehe J. Breen 1112 Dunlop, P. J., C M . Bigneil, H . L .

Robjohns: Excess and Interaction Second Vi r i a l Coefficients for Twelve Binary Gaseous Systems Containing Carbon Tetrafluoride 351

Duschner, Η., siehe U . Schneider . . 746

Ebert, Κ. H . , siehe U . Stabel 1001 Eder, S., K . Marker t , A. Jablonski,

K . Wandelt: Substrate Dependence of the 2 D Gas-Solid Phase Transit ion in Adsorbed Xenon Layers 225

Ederer, H . J., siehe U . Stabel 1001 Edwards, P. P., siehe D . E. Logan 575 Egsgaard, H . , L . Carlsen, S. Elbel:

Isomerizations of the Ni t rome-

thane Radical Cation in the Gas Phase 369

Ehrig, R., siehe Η. Bertagnolli 502 Eicke, H.-F., S. Geiger, F. Α. Sauer,

Η. Thomas: Dielectric Study of Fractal Clusters Formed by Aqueous Nanodroplets in Apolar Media 872

Eiermann, M . , siehe Μ. Benje 435 Elbel, S., siehe Η. Egsgaard 369 Elbers, G , siehe Τ. Behner 698 Eldik, R. van, siehe P. Mart inez . . . 609 Elias, Ε., Ν . Hoang, J. Sommer, Β.

Schramm: Die zweiten Virialkoef-fizienten von Hel ium-Gasmi-schungen im Bereich unterhalb Zimmertemperatur 342

Embid, J. M . , siehe S. O t i n 1179 Emig, G : Reaktormodelle für he-

terogen katalysierte Gasphasen-reaktionen 968

Endo, H . , siehe H.-P. Seyer 587 Engelhardt, T., siehe H . Bertagnolli 512 Er t l , G : Reactive Transformation of

Surface Structure 284 — siehe R. J. Behm 294

Fabian, P., siehe B. C. K r ü g e r 1062 Fahr, Α., siehe D . A. Robaugh . . . . 77 Fain, S. C. Jr.: Structures and Phase

Transitions in Physisorption: Molecular-Axis Orientat ional Ordering in Nitrogen and Carbon Monoxide Monolayers on Graphite 211

Fecher, G , A I . Weiss: On the Order-Disorder Phase Transit ion of A n -i l in ium Halides. Crystal Structure of the High and Low Temperature Phase of A n i l i n i u m Iodide, C 6 H 5 N H ? I e ( C 6 D 5 N H 3 ® I e ) . X -ray and Neut ron Diffraction Studies 1

Fecher, G , A l . Weiss: O n the Order-Disorder Phase Transi t ion of A n i l in ium Halides. , 2 7 I - N Q R Investigation of the An i l i n ium Iodides C 6 H 5 N H ? Ι θ , C 6 H 5 N D ? Ι θ , Q D 5 N H 3 ® I e , and Q D 5 N D 3 ® I e . Di la tometr ic Studies on A n i l i nium Bromide and A n i l i n i u m I o dide Single Crystals 10

Felsche, J., S. Luger: Structural Co l lapse or Expansion of the H y d r o -Sodalite Series N a 8 [ A l S i 0 4 ] 6 -( O H ) 2 · « H 2 0 and N a 6 [ A l S i 0 4 ] 6 • n H 2 0 U p o n Dehydrata t ion . . . 731

Fernandez, J., siehe S. O t i n . . . . . . . 1179 Feuer, Η., siehe Η . Fuess 755 Fischer, Ch.-H. , Η . Weller, Α. Fo j t ik ,

C. Lume-Pereira, Ε. Janata, Α. Henglein: Photochemistry o f C o l loidal Semiconductors 10. Exclusion Chromatography and Stop Flow Experiments on the Formation of Extremely Small CdS Particles 46

Fischer, J., A l . Weiss: Transport Properties of Liquids. I V . Self-Diffusion, Viscosity, and Mass Density of Ell ipsoidal Shaped Molecules i n the Pure L i q u i d Phase 896

— — Transport Properties o f L i q uids V I . Viscosity, Excess V o l umes, and Self-Diffusion of Near ly . A thermal Mixtures 1129

— — Transport Properties of L i q uids V I I . Viscosity, Excess V o l umes, and Self-Diffusion of Binary Mixtures of Donor-Acceptor and of CCl 4 -Carboxyl ic Acid Systems 1141

Fojt ik, Α., siehe Ch . -H. Fischer . . . . 46 Frahm, J., siehe K . - D . Merboldt . . . 614 Franck, E. U . , siehe Μ . Gehrig . . . . 525 — siehe Μ. Christoforakos 780 Freund, Α., Th . Krue l , F. W. Schnei

der: Dist inct ion Between Deterministic Chaos and Amplif icat ion of Statistical Noise in an Experimental System 1079

Freund, H.-J., siehe D . Schmeißer . 228 Fromme, P., siehe P. G r ä b e r 1034 Fuess, Η., Ε. Stuckenschmidt, Β. P.

Schweiss: Inelastic Neutron Scattering Studies of Water in Na tu ral Zeolites 417

— L . Schröpfer , Η . Feuer: Exsolu-t ion and Phase Transformations in Synthetic Pyroxenes. X-ray and TEM-Studies at Elevated Temperatures 755

Fujara, F., siehe S. Jurga 1153 Fujisaki, Μ., T. G ä u m a n n , Α. Ruf:

Kinet ic Isotope Effects for H y drogen Abstraction from Various Saturated Hydrocarbons by Deuterium Atoms in the Gas Phase 375

Fukada, S., K . Hor iuchi , T. Asaji, D . Nakamura: Structural Phase Transit ion in Or thorhombic and Monocl in ic F e 3 + Doped K 3 C o ( C N ) 6 Crystals as Studied by the Temperature Variation of , 4 N N Q R Frequencies 22

Funke, Κ.: D c b y e - H ü c k c l - T y p e Re-laxation Processes in Solid Elec-trolytes: Complex Conductivi ty Arcs and Broad Quasielastic Neutron Scattering 661

Gadooni , J., U . Onken: Catalysis o f Hydrazine Oxida t ion by Sul-phonated Phthalocyanines 154

G ä r t n e r , G , P. Janiel, H . Rau, H . A . M . van Ha l , H . J. P. Nabben: F low M e t h o d Vapour Pressure Determination and Characteri-zation of Tetrakis-(Trifluoropen-tanedionato)-Thorium(IV) and Tetrakis (Heptafluorodimethyl-octanedionato)-Thorium(IV) . . . . 459

G ä u m a n n , Τ., siehe Μ . Fujisaki . . . 375 Gardiner, W.: Parameter Optimiza

t ion i n Detailed Chemical Kine t ics Model ing 1024

Gehrig, M . , H . Lentz, E. U . Franck: The System Water — Carbon Dioxide — Sodium Chloride to 773 Κ and 300 M P a 525

Geiger, S., siehe H.-F . Eicke 872 Gerhardt, Μ., Η . Schuster, P. J.

Plath: E in diskretes mathematisches M o d e l l für die Dynamik der Methanoloxidat ion an einem P a l l a d i u m - T r ä g e r k a t a l y s a t o r . . . 1040

Giordano, Ν . , siehe V. Antonucci . . 828 Glemser, O., siehe J. Bauer 809 — siehe J. Bauer 1220 Gomes, W . P., siehe D . Vanmaekel-

bergh 431 Goslich, R., siehe J. M ö n i g 115 G r ä b e r , P., P. Fromme, U . Junesch,

G . Schmidt, G . Thulke: Kinetics of Proton-Transport-Coupled A T P Synthesis Catalyzed by the Chloroplast A T P Synthase 1034

Grammenpopoulou-Bi la l , St., siehe L . Cemic 654

Gray, P., S. K . Scott: A New Model for Oscillatory Behaviour in Closed Systems: The Autocatala-tor 985

Greuter, F., siehe D . Schmeiße r . . . 228

Inhaltsverzeichnis von Band 90 (1986) - Autorenverzeichnis V I I

Grunenberg, Α., D . Bougeard: The Observed and Calculated Vibrational Spectra of DL-methionine in the Study of the Solid State Phase Transit ion 485

Güs ten , Η. , siehe Μ. Rinke 439 G u n ß e r , W., siehe G. J. Harms . . . . 764

Hack, W., H . Kurzke, P. Rouvei-rolles, H . Gg. Wagner: Hydro -gen Abstraction Reactions by NH 2 (X 2 B,)-Radica ls from Hydro -carbons in the Gas Phase 1210

Häfele, Ε., H.-G. Lintz: Oxide Formation during the Reaction of Carbon Monoxide and Oxygen on Polycrystalline Pla t inum . . . . 298

Hal , van Η . A. M . , siehe G. G ä r t n e r 459 Handwerk, V., R. Zellner: Kinetics

and Energetics o f the Reaction CIO + 0 2 ('Ag) — C 1 0 3 92

Harbison, G. S., siehe S. Jurga . . . . 1153 Harms, G. J., W. G u n ß e r : Wet Salt

Melts — A Reaction Med ium Suitable for the Preparation of Metastable Oxides and Hydrox-ides? 764

Hauck, J.: Interstitial Site Occu-pancy of Hydrogen Atoms in Laves Phases and Structurally Related Compounds 708

Heakal, F. El-Taib, siehe A. A. Mazhar 1205

Heckl, W. Μ., H . M ö h w a l d : A Nar-row Window for the Observation of Spiral L ip id Crystals 1159

Hcier, H . J., siehe Η. Pfnür 272 Heintz, Α., siehe Η. Wagner 463 Heinze, J., M . S tö rzbach : Electro-

chemistry at Ultramicroelec-trodes — Simulation of Hetero-geneous and Homogeneous K i -netics by an Improved A D I -technique 1043

Henglein, Α., siehe Ch . -H . Fischer . 46 Henkel, Τ., siehe Ν . Yennemann . . 888 Hensel, F., siehe K . Tamura 581 - siehe H.-P. Seyer 587 Hermanns, H . D. , siehe K . Natara-

j a n 533 Hess, D. , H . Papp, M . Baerns: Fe/

M n Oxide Catalysts for the Fischer-Tropsch-Synthesis; Part V I I : Adsorpt ion o f Carbon M o n oxide and Nitrogen at L o w Temperatures 1234

Heydtmann, Η., siehe F. G. Simon 543 Hibbie, S. J., P. G. Dickens: Struc

ture and Thermodynamics of H -Insertion i n Mo(W)-Oxides . . . . 702

Hinze, E., siehe R. Becker 833 Hira iwa, J., siehe W. Ueda 353 Hoang, N . , siehe E. Elias 342 Hosier, W., E. Ritter, R. J. Behm: T o

pological Aspects of the (1 χ 1 ) ^ "Hexagonal" Phase Transi t ion on Pt(100) 205

Hoffmann, H . , G. Platz, W. Ulbr icht : F r o m Micellar Solutions to M i -croemulsions — A Kinet ic Study 877

- siehe Η . Rehage 1071 Hofmann, W. Κ., R. K ö n e n k a m p ,

T h . Schwarzlose, Μ . Kunst , Η . Tributsch, Η. J. Lewerenz: M e l t G r o w n Layered Crystals: Comparison of Optoelectronic Properties 824

Hoja , R., siehe R. M a r x 222 Homann , K . H , U . v. Pidol l : The

Low-Pressure Pyrolysis of Buta-d i y n e ( C 4 H 2 ) 847

Hor iuch i , K . , siehe S. Fukada 22

Hoshino, H . , siehe H.-P. Seyer . . . . 581 Husain, D. , G. Roberts: Kinetic In

vestigation of (a) the Collisional Quenching of Mg(3 3 Pj) by C 0 2 over the Temperature Range 6 0 0 - 1 1 0 0 Κ by Time-Resolved Atomic Emission (Mg(3 3 P t ) —• Mg(3 ' So) + Λν) and (b), Ε - (Ε, V) Transfer from Mg(3 3 Pj ) to M g O by Time-Resolved Molecular Emission ( M g O , Β ! Σ + - Α ' Π and Β ' Σ + - Χ ' Σ + ) Fo l lowing Pulsed Dye-Laser Excitat ion at λ = 457.1 nm (Mg(3 3 P, ) — Μ 8 ( 3 % ) ) 360

Hussla, I . , H . Coufal, F. T räge r , Τ. J. Chuang: Pulsed Laser-Induced Thermal Desorption of Xenon . . 240

Iglesias, E., siehe A. Castro 891 Ikeda, R., siehe A. K u b o 479 - siehe Η . Ishida 598 Ise, N . , siehe Y. Ishii 50 Ishida, H . , R. Ikeda, D . Nakamura:

Cationic Mot ions Involv ing Self-Diffusion and Structural Phase Transit ions in Solid Dimethyl -and Tr imethy lammonium N i trates as Studied by Differential Thermal Analysis and Ή N M R Techniques 598

Ishizuka, Y., siehe Y. Nosaka 1199 Ishii , Υ., H . Matsuoka, N . Ise: "Or-

deredM Dis t r ibu t ion of Ionic M i celles in Di lu te Solutions of A l -ky l t r ime thy lammonium Chloride as Studied by Small-Angle X-ray Scattering 50

Ishikawa, H . , siehe Ο . Uemura 71 I t ami , Τ., siehe Y. M o r i k a w a 1174

Jablonski , Α., siehe S. Eder 225 Jacobs, Ρ . Α., siehe T h . Bein 395 Jaeger, Ν . I . , R. Ottensmeyer, P. J.

Plath: Oscillations and Coupl ing Phenomena Between Different Areas of the Catalyst D u r i n g the Heterogeneous Catalytic Oxidat ion of Ethanol 1075

Janata, E., siehe Ch. -H. Fischer . . . 46 Janecek, Α., siehe G. Η . Kohlmaier 1066 Janiel, P., siehe G. G ä r t n e r 459 Joshi, Y . P., D . J. Tildesley: Scaled-

Particle Theory for Adsorbed Hard-Core Molecules 217

Junesch, U . , siehe P. G r ä b e r 1034 Jurga, S., G . S. Harbison, B. Blü-

mich, Η . W . Spiess, F. Fujara. A. Ol ingen Static and M A S *5C1 N M R and Molecular Mot ions of CIO4" Ions i n the Various Phases of M u l t i m e t h y l a m m o n i u m Perchlorates 1153

Kabadi , V . N . : Molecular Dynamics of Fluids: The Gaussian Overlap M o d e l l l 327

— Statistical Mechanics of N o n -Spherical Molecules: Spherical Harmonic Expansions on N o n -Spherical Surfaces. I I . Gay-Berne Gaussian Overlap Potential 332

Kaiidas, C , siehe A. Palanivel 794 K a r t h ä u s e r , J., siehe I . Wagner 861 Kassmann, K . - D . , H . Knapp : Vapor-

L i q u i d Equi l ibr ia for Binary and Ternary Mixtures o f Benzene, Toluene and n-Butyraldehyde . . 452

K e r l , Κ.: Reduced Representation of Second V i r i a l Coefficients by Straight Lines 789

K i n d , M . , siehe Α. Mersmann 955 Kishimoto , S., siehe W. Ueda 353 Klafter, J., siehe Α. Blumen 1048 Kleinfeld, Μ., H . -D . Wiemhöfer:

Chemical Diffusion in CuInS 2 in the Temperature Range of 20°C to 100°C 711

K l u m p , Η.: Experimental Evaluat ion of the B - D N A - + Z - D N A Transit ion: Energetics of a Reversible, Thermally Induced Hel ix /Hel ix Transi t ion of Poly d G -n r d C in Physiological M g 2 +

Concentrations 444 Knapp, Η., siehe K . - D . Kassmann 452 K n o l l , W., siehe Ν . Vennemann . . . 888 Kogak, Μ., siehe U . Kramer 521 K ö n e n k a m p , R., siehe W. K . Hof-

mann 824 Kohlmaier , G. Η., H . Brohl , A. Ja

necek, G. Benderoth: Modell ierung des Kohlenstoffaustauschs zwischen A t m o s p h ä r e und Land-vegetation unter Berücksicht i -gung von L a n d n u t z u n g s ä n d e r u n -gen und C 0 2 - D ü n g u n g s e f f e k t . . 1066

Kolar -Anic , L j . , siehe S. Anic 539 — siehe S. Anic 1084 Koster, Τ. P. M . , siehe Α. Η. A.

Tinnemans 383 — siehe Α. Η . A. Tinnemans 390 K o u h Simpson, Y., siehe C. B. Carter 676 Kramer, U . , M . Κopak , A. Steiger, F.

Becker: Excess Enthalpies of B i nary L iqu id Mixtures Containing Oxiranes. Part 1: HE (298.15 K , 101.3 kPa) of the Four Systems Chloromethyl- and Bromome-thyl-Oxirane + n-Hexane and n-Heptane 521

K r ü g e r , Β. C , P. Fabian: Model Calculations About the Reduction of Atmospheric Ozone by Different Halogenated Hydrocarbons 1062

Krue l , Th. , siehe Α. Freund 1079 K u b o , Α., R. Ikeda, D . Nakamura:

Self-Diffusion, Overall Rotat ion of Molecules, and Ring Mot ions in the Three Solid Phases of Formylferrocene, Fe(C 5 H 5 ) -( Q H 4 C H O ) , as Studied by Ή N M R and Differential Thermal Analysis 479

K u h n , Η. , siehe Y. Yonezawa 1183 Kunst , Μ. , siehe W. Κ. Hofmann . . 824 Kurzke, H . , siehe W. Hack 1210

Lacmann, R., siehe W. Beckmann . 963 Läufer , A. G. E., siehe H . Dreeskamp 1195 Lagally, M . G , siehe M . Tringides 277 Lagaly, G., siehe I . D e k ä n y 422 — siehe I . Dekany 427 Lange, B., siehe T. Dreier 1010 Langer, K . , siehe L . Cemic 654 Laqua, W., siehe U . Br inkmann . . . 680 Leaist, D . G : Mass Transport i n

Aqueous Zinc Chloride-Potas-sium Chloride Electrolytes 797

Lechner, Μ . D. , siehe Ν . Vennemann 888 Lehmann, G., siehe T. Behner 698 Leis, J. R., siehe A. Castro 891 Lengeier, B.: Internal Oxida t ion of

Impurit ies in Palladium Investigated by X-ray Absorpt ion Spectroscopy 649

Lentz, H . , siehe Μ . Gehrig 525 — siehe R. Becker 833 Lerf, Α., siehe Τ. Butz 638 Leute, V., siehe Μ . Bredol 714 Lewerenz, Η . J., siehe W . Κ . Hof

mann 824 Leyte, J. C , siehe J. Breen 1112

V I I I Inhaltsverzeichnis von Band 90(1986) — Autorenverzeichnis

Lichtenthaler, R. N . , siehe H . Wag-ner 65

— siehe H . Wagner 69 — siehe H . Wagner 463 Limbach, H . - H . , siehe G. O t t i n g . . . 1122 Lintz , H . - G , siehe E. Häfelc 298 Logan, D . Ε., P. P. Edwards: Frenkel

Excitonic Insulator Transit ions in Expanded Metals 575

Losa, C. G , siehe S. O t i n 1179 Luger, S., siehe J. Felsche 731 Lume-Pereira, C , siehe C h . - H .

Fischer 46 L y o , I . W., siehe D . S c h m e i ß e r 228

M a c k o r , Α., siehe Α. Η . A. Tinnemans 383

— siehe Α. Η . A. Tinnemans 390 Mafe, S., J. Pellicer, V . M . Aguilel la:

The G o l d m a n Constant Field Assumption: Significance and A p p l i cabil i ty Condi t ions 476

Maier , J.: O n the Conduc t iv i ty of Polycrystalline Mater ials 26

— B. Reichert: Ionic Transport in Heterogeneously and Homogeneously Doped T h a l l i u m s - C h l o ride 666

Maier , E., G Olb r i ch : The Synchronous 1,4-Addition of S i H 2 ( , A , ) to s-ris-buta-l,3-diene. A CI and CASSCF Study 86

Mal ic , R. Α., siehe Ε. G . McRae . . . 268 Marke r t , K . , siehe S. Eder 225 Mart inez, P., R. M o h r , R. van Eldik:

The Effect of Ionic Strength and Pressure on the Complex Format ion Kinetics of the Aquated I ron(I I I ) -Thiocyanate System . . . 609

M a r x , R., R. Hoja : 2 d K r y p t o n , a Mode l System for a Commensurate-Incommensurate Trans i t ion . 222

Matsuoka , H . , siehe Y . Ishi i 50 Mazhar, Α. Α., F. E l -Taib Heakal :

Retardation o f the C d 2 + and I n 3 +

Reduction Processes at D M E i n Chlor ide M e d i u m in Relat ion to Adsorp t ion of Coumar in 1205

McRae, E. G , R. A . Mal ic : A 7 χ 7 —> 2 χ 7 Phase Trans i t ion o f A u Overlayers on Ni(110) Surface . . 268

Merbo ld t , K . - D . , J. F rahm: , H -N M R Relaxation Study of Water in Binary Solvent Mix tu res i n the Absence and Presence of Electrolytes 614

Mersmann, Α., Μ . K i n d : Model l i e rung i n der Verfahrenstechnik am Beispiel von Kris ta l l isatoren . . . 955

Meschede, L . , siehe G. O t t i n g 1122 Mi lchev , Α., Κ. Binder: M o n t e Car lo

Study of a Latt ice Gas M o d e l w i t h Nonaddi t ive Lateral Interactions 267

M i y a m a , H . , siehe Y . Nosaka 1199 M ö b i u s , D . , siehe Y. Yonezawa . . . 1183 M ö h w a l d , H . , siehe W . M . Heckl . . 1159 Möl l e r , W., E. M o z z h u k h i n , H . Gg.

Wagner: H i g h Temperature Re-actions of C H 3 ; 1. The Reaction C H 3 + H 2 C H 4 + Η 854

M ö n i g , J., R. Gosl ich, K . - D . Asmus: Thermodynamics of S.'.S 2 σ / 1 σ * Three-electron Bonds and Depro tona t ion Kinetics of Thioether Radical Cations in Aqueous Solut ion 115

M o h r , R., siehe P. Mar t inez 609 M o r i k a w a , Υ., T. I t a m i , M . Shimoji :

The Volume of L i q u i d H g — I n and H g - S n Alloys 1174

M o r i t z , W., siehe Μ . Tringides . . . . 277

Mostafa, S. N . , S. R. Selim: Electrochemical and Thermodynamic Studies on Copper-Silver-Selenium System 130

Mozzhukhin , E., siehe W. M ö l l e r . . 854 Mueller, D , T. N . Rhodin, P. A.

Dowben: Halogen Overlayer Structures on Fe(110) 281

Mül ler , Κ.: Relaxation and Reconstruction of Solid Surfaces 184

M ü l l e r - W a r m u t h , W., siehe Ε. Wein 158 - siehe Cl . Ritter 357 M ü s e r , Η. Ε., siehe F. S. Rys 291

Nabben, H . J. P., siehe G. G ä r t n e r 459 Nakahara, M . , siehe Y. Yoshimura 58 Nakamura, D., siehe S. Fukada . . . 22 - siehe A. Kubo 479 - siehe H . Ishida 598 Nakamura, Κ., T. Ostvold, Η . A.

0ye : Vapour Pressure of M o l t e n Acidic Potassium Chlor ide-Aluminium Chlor ide-Aluminium Chloride Monoammine Mixtures 141

Natarajan, Κ., K . Thielen, Η. D . Hermanns, P. Roth: Thermal Decomposition of Cyanogen Measured in C 2 N 2 / 0 2 and Q N j / H ; , Reaction Systems by Atomic Resonance Absorption 533

Nosaka, Υ., Y. Ishizuka, H . Miyama: Separation Mechanism of a Pho-toinduced Electron-Hole Pair in Metal-loaded Semiconductor Powders 1199

Nover, G., siehe R. Becker 833 Nowak, U . , siehe P. Deufihard 940

Olbr ich , G , siehe Ε. Maier 86 Olinger, Α., siehe S. Jurga 1153 Onken, H . U . , E. Wicke: Statistical

Fluctuations of Temperature and Conversion at the Catalytic C O Oxidat ion in an Adiabatic Packed Bed Reactor 976

Onken, U . , siehe J. Gadooni 154 Ostvold, T., siehe Κ. Nakamura . . . 141 Oswald, H . R., A. Reller: Einflüsse

struktureller Gegebenheiten auf den Verlauf von heterogenen Fes tkö rpe r r eak t i onen 671

O t i n , S., J. Fernandez, J. M . Embid , I . Velasco, C. G. Losa: Thermo-dynamic and Dielectric Proper-ties of Binary Polar 4- Non-Polar Mixtures; I . Static Dielectric Con-stants and Excess M o l a r Enthal -pies of n-Alkylamine - I - n-Dode-cane Systems 1179

Ot t ing , G , H . Rumpel, L . Meschede, G . Scherer, H . - H . Limbach: D y -namic L iqu id State N M R and I R Study of Tautomerism and Con-formations of Tetraphenyloxal-amidine, a Novel Small In t ra -molecular Double Hydrogen Transfer System 1122

0ye , Η . Α., siehe Κ. Nakamura . . . 141 Ottensmeyer, R., siehe Ν . I . Jaeger . 1075

Palanivel, G. Rajendran, C. Kalidas: Selective Solvation of Some Silver(I) Salts in Water-Pyridine Mixtures at 30°C 794

Pannetier, J.: Real-Time Neu t ron Powder Diffraction: A Technique for the Study of Solid State Reactions 634

Papp, H . , siehe D. Hess 1234 Passalacqua, E., siehe V. Antonucci 828 Pellicer, J., siehe S. Mafe 476 — S. Mafe, V. M . Aguilella: Ionic

Transport Across Porous Charged Membranes and the Goldman Constant Field Assumption 867

Pena, Μ . E., siehe A. Castro 891 Pfnür, Η., H . J. Heier: Order-Dis

order Phenomena in the System CO/Ru(001) 272

Piazza, S., siehe F. D i Quar to 549 Pidol l , U . v., siehe Κ. Η. Homann 847 Pit termann, U . , siehe Μ. Benje . . . . 435 Plath, P. J., siehe Μ . Gerhardt . . . . 1040 — siehe Ν . I . Jaeger 1075 Platz, G , siehe Η. Hoffmann 877 Plummer, Ε. W., siehe D . Schmeiße r 228 Prestel, H . , U . Schindewolf: Ther-

modynamics, Conduct ivi ty and Photochemical Effects of Sulphur Ammonia Solutions 150

Prinz, D. , L . Riekert: Observation of Rates of Sorption and Diffusion in Zeolite Crystals at Constant Temperature and Pressure 413

Prissok, F., siehe Τ. Behner 698

Quarto , F. D i , C. Sunseri, S. Piazza: Amorphous Semiconductor-Electrolyte Junction. A New Interpretat ion of the Impedance Data of Amorphous Semiconducting Films on Metals 549

Raffel, Β., J. Wolfrum: Infrared Laser Inducted Igni t ion of Gas M i x tures 997

Raineri, F. Ο., Ε. Ο . Timmermann: Influence of Ionic Traces Upon the Electric Conduct ivi ty of an Electrolyte Solution. O n the Possibility of Obta in ing the Trace M o b i l i t y of an Ion Exclusively by Conductance Measurements . . . . 802

Rajendran, G , siehe A. Palanivel . . 794 Rau, H . , siehe G. G ä r t n e r 459 Ray, W . H . : Mode l l ing of Polymer-

ization Phenomena 947 Rehage, Η., H . Hoffmann, I . W u n

derlich: A Rheological Switch: Shear Induced Phase Transitions in Aqueous Surfactant Solutions 1071

Reichert, Β., siehe J. Maier 666 Reller, Α., siehe Η . R. Oswald 671 — Reversible Reduktions- und

Reoxidationsprozesse des Typs A B 0 3

IX

Roth, P., siehe Κ. Natarajan 533 Rouveirollcs, P., siehe W. Hack . . . 1210 ROsenberg, Μ., H . Viefhaus: Revers

ible and Irreversible Phase Transitions in the Surface Segregation of Sn, Sb, and A l on I ron Single Crystals 301

Ruf, Α., siehe Μ . Fujisaki 375 Rumpel, Η., siehe G. O t t i ng 1122 Rys, F. S.: Roughening of Solid Sur

faces 208 — Η. Ε. Müser : Statistical Model for

the Hydrogen-Induced Recon-struction of the Ni(110) Surface 291

Sander, U . , siehe Η. Ishida 598 Satow, T., siehe Ο . Uemura 71 Sauer, F. Α., siehe H.-F. Eicke . . . . 872 Saygin, ö . , siehe Η. T. Wi t t 1015 Scherer, G., siehe G. O t t ing 1122 Schindewolf, U . , siehe H . Prestel . . 150 Schlodder, E., siehe Η. T. W i t t . . . . 1015 Schmalzried, H . , siehe D . L. Ricoult 135 — siehe R. Dieckmann 564 Schmeißer , D. , I . W. Lyo, F. Greuter,

E. W. Plummer, H.-J. Freund, M . Seel: Photoemission from Or-dered Physisorbed Molecular Phases Nj /Graphi te , Ν·> and C O / A g ( l l l ) 228

Schmidt, G., siehe P. G r ä b e r 1034 Schmidt, P. C . siehe Μ. C. Böhm . 913 Schmidt, R.: The Endoperoxidc of

Mcsodiphcnylhclianthrene. Four Reaction Channels Leading from Different Upper Excited Elec-tronic States to Cycloreversion . 813

Schmidtke, H . - H . , siehe A. Urushi-yama 1188

Schneider, F. W., siehe Α. Freund . 1079 Schneider, M . , J. Wol f rum: Mecha

nisms of By-Product Format ion in the Dehydrochlor inat ion of 1,2-Dichloroethane 1058

Schneider, U . , M . Alavi , H . Dusch-ner: A n Experiment for Determining the Kinetics of Heteroge-neously Catalysed Gas Reactions 746

Schöl lhorn , R., siehe Ε. Wein 158 — siehe Cl . Ritter 357 Schönher r , Th. , siehe A. Urushiyama 1188 Schoonman, J., siehe Α. Η . A. Tinne

mans 383 — siehe Α. Η . A. Tinnemans 390 Schramm, B., siehe E. Elias 342 Schreyer, W.: The Minera l Cordier-

ite: Structure and Reactions in the Presence of F lu id Phases 748

Schröpfer, L . , siehe H . Fuess 755 Schulz, G., siehe H . Bertagnolli . . . 816 Schumacher, R., siehe D . M . Tesch-

ner 593 Schuster, H . , siehe M . Gerhardt . . . 1040 Schwahn, D. , L . Belkoura, D . Woer-

mann: Neut ron Scattering Exper-iments wi th a Binary Cri t ical Mixture for the Determinat ion of the Critical Exponent η 339

Schwahn, P., D . Woermann: Transport of Ions Against their Concentration Gradient Across Cation Exchange Membranes 773

Schwarzlose, Th. , siehe W. K . Hof-mann 824

Schweiss. B. P., siehe Η . Fuess 417 Scott, S. K. , siehe P. Gray 985 Seel, M . , siehe D . Schmeiße r 228 Sekiya, T., siehe Ο . Uemura 71 Selim, S. R., siehe S. N . Mostafa . . . 130 Selke, W.: Wet t ing Phenomena at

Domain Boundaries 232 Sepa, D . B.. siehe A. Damjanovic . . 1231

Seyer, H . P., siehe Κ. Tamura 581 - Κ. Tamura , Η. Hoshino, Η.

Endo, F. Hensel: The Optical Properties of Liquid Se and Sc, Jcx Al loys 587

Sharma, S., N . Weiden, A. Weiss: Order-Disorder in Solid 1,2,3-Tri-chlorobenzene. Α Single Crystal 3 5 C1 N Q R Study 725

Shimoji, M . , siehe Y. Mor ikawa . . . 1174 Shimokawa, S.: Nuclear Spin-lattice

Relaxation and Self-diffusion Coefficient for Toluene around Supercritical Region 126

Simon, F. G., H . Heydtmann: Best immung der Geschwindigkeitskonstanten der Reaktion von ' C H 2 mit F luor- und Chlorethen 543

Sire, E.-O.: O n Topological-Dynam-ical Equivalent Representations of Reaction Networks: The Omega-Equation and a Canonical Class of Mass Action Kinetics . . 1087

Solomun, T.: Coverage Dependence of C O Electrosorption on Palladium: An in-situ IR Study 556

Sommer, J., siehe Ε. Elias 342 Spiess, Η. W., siehe S. Jurga 1153 Stabcl, U . , Η. J. Ederer, Κ. Η. Eberl:

The Mode l l ing of Gasphasc Aro -matisation i n the Pyrolysis of Hydrocarbons (Part I I ) 1001

Stcgger, P., siehe Τ. Behner 698 Steiger, Α., siehe U . Kramer 521 Stein, S. E., siehe D. A. Robaugh . . 77 Stephan, W.: Nonlinear Phenomena

in the Evolu t ion of Satellite D N A 1029 Strehlow, Η., siehe 1. Wagner 861 Stritzker, B., siehe D . M . Teschner 593 Stö rzbach , M . , siehe J. Heinze . . . . 1043 Stuckenschmidt, E., siehe H . Fuess 417 Sunseri, C , siehe F. D i Quarto . . . . 549 Szän to , F., siehe I . Dekany 422 — siehe I . Dekany 427

Tamura, Κ., Η . P. Seyer, F. Hensel: Reflection Spectra of Fluid Sulphur in the Sub- and Supercritical Region 581

- siehe H.-P. Seyer 587 Telieps, W., E. Bauer: Kinetics o f the

(7 χ 7) (1 χ 1) Transit ion on S i ( l l l ) 197

Temps, F., siehe Τ. Böh land 468 Tenne, R., A. Wold : Photoelectro-

chemical Etching of n-MoSe 2 . . . 545 Teschner, D . M . , R. Schumacher, B.

Stritzker: Opt ica l Absorbance and Photoelectrochemical Quan-tum Efficiency of Ti tan ium Oxide Modif ied by Ion Implantat ion and Reductive/Oxidative Anneal-ing 593

Thewissen, D . H . M . W., siehe A . H . A. Tinnemans 383

Thielen, Κ., siehe Κ. Natajaran . . . 533 Thomas, Η. , siehe H.-F. Eicke . . . . 872 Thulke, G., siehe P. G r ä b e r 1034 Tielen, M . , siehe T h . Bein 395 Tildesley, D . L , siehe Υ. P. Yoshi . . 217 Tinnemans, Α . Η. Α., Τ. P. Μ . K o

ster, D . Η . Μ. W. Thewissen, Α. Mackor , J. Schoonman: Photo-electrochemiical Properties of Po-lycrystalline Mg-Doped p-Type I r o n ( I I I ) Oxide 383

— — A. M a c k o r , J. Schoonman: I n -terfacial Phenomena of Poly-crystalline Mg-Doped p-Type I r o n ( I I I ) Oxide Photoelectrodes 390

T o m ä n e k , D. , siehe H . Dreysse . . . . 245 Träge r , F., siehe I . Hussla 240

Tributsch, H . , siehe W. K . Hofmann 824 Timmermann , E. O., siehe F. O. Rai-

neri 802 Tringides, Μ., P. K . W u , W. M o r i t z ,

M . G . Lagally: Order ing Kinetics f o r O o n W ( H O ) 277

Tsang, W., siehe D . A. Robaugh . . . 77 Tse, J. S.: Electronic Structures of the

M o n o - and Tr ica rbony l of Cu and Ag 906

Ueda, W., J. Hi ra iwa , N . Yoshida, S. Kish imoto : Catalyt ic Ac t iv i ty of Colored Sodium Chlor ide for the Dehydrochlor ina t ion of t -Buty l Chloride 353

Uemura, Ο., T. Sekiya, H . Ishikawa, T. Satow: Electronic and Thermodynamic Properties of the L i q uid T l - A g T e System 71

Ulbr ich t , W., siehe Η. Hoffmann . . 877 Urushiyama, Α., T h . S c h ö n h e r r , H . -

H . Schmidtke: Molecular Struc-ture Determinat ion Inferred from High ly Resolved 4 A 2 e 2 E „ , 2 T , g Spectra and Ligand Field Calcu-lations of Tr igona l ly Distor ted Hexaamminechromate(III ) 1188

Vanmaekclbergh, D. , W. P. Gomes, D . Cardon: Studies on the n-GaAs Photoanode in Aqueous Electrolytes. 3. Recombination Resistance 431

Velasco, l . , siehe S. O t i n 1179 Vennemann, N . , M . D . Lcchncr, T.

Henkel, W. K n o l l : Densitometrie Characterization of the M a i n Phase Trans i t ion of D i m y r i s t o y l -Phosphatidylcholine between 0.1 and 40 M P a 888

Viefhaus, H . , siehe Μ . R ü s e n b e r g . . 301 Vojnovic , Μ . V., siehe Α. Damja

novic 1231 Vracar, L j . M . , siehe A. Damjanovic 1231

Wagner, H . , R. N . Lichtenthaler: Excess Properties of L i q u i d Cyclo-hexane/Hydrocarbon Mixtures . I . Experimental Results of the Excess Enthalpy 65

- — Excess Properties of L i q u i d Cyclohexane/Hydrocarbon M i x tures. I I . Excess Gibbs Energy Determined f rom To ta l Vapour Pressure Da ta 69

- A . Heintz, R. N . Lichtenthaler: Excess Properties of L i q u i d Cyclohexane/Hydrocarbon M i x tures. I I I . Appl ica t ion of an Extended Prigogine-Flory-Patter-son-Theory 463

Wagner, H . Gg., siehe Τ. B ö h l a n d 468 - siehe W. M ö l l e r 854 - siehe W. Hack 1210 Wagner, I . , J. K a r t h ä u s e r , H . Streh-

low: O n the Decay o f the D i -chloride A n i o n O f in Aqueous Solut ion 861

Wandel t , Κ., siehe S. Eder 225 Warnatz , J., siehe Β. Rogg 1005 - siehe Τ. Dreier 1010 Waser, R.: Diffusion of Hydrogen

Defects in B a T i 0 3 Ceramics and S r T i 0 3 Single Crystals 1223

Wasgestian, F., siehe A. Ditze . '.... 111 Wedler, G., D . Borgmann, W . Alter ,

K . Wi tan : N 2 Adsorbate States on Fe Films between 77 Κ and 273 Κ 235

Wehn, R., D . Woermann: M o d i f i cation of the Electric Double Layer Properties of the Interface

χ

Mica/Aqueous Solut ion by A d sorption of Polyelectrolytes . . . . 121

Weiden, Ν., siehe S. Sharma 725 Weidner, J. U . , siehe Η. Bertagnoll i 502 Wei l , K . G., siehe V. W. Benz 201 - siehe Μ. Benje 435 Wein, Ε., W. M ü l l e r - W a r m u t h , R.

Schö l lhorn : P ro ton Exchange of Water in Layered Intercalat ion Compounds 158

W e i n g ä r t n e r , Η., H . Bertagnoll i : The Microscopic Descript ion of M u tual Diffusion and Closely Related Transport Processes in L i q uid Mixtures 1167

Weiss, Ar. , siehe I . D e k ä n y 422 - siehe I . Dekany 427 Weiss, A I . , siehe G . Fecher 1 - siehe G . Fecher 10 - siehe D . Borchers 718 - siehe S. Sharma 725 - siehe J. Fischer 896 - siehe J. Fischer 1129 - siehe J. Fischer 1141 Weller, H . , siehe C h . - H . Fischer . . . 46

Wicke, E., siehe H . U . Onken 976 Wiemhöfer , H . -D. , siehe M . Kle in-

feld 711 W i l l , G , siehe R. Becker 833 Wil l i s , R. F.: Cri t ical Fluctuations on

Solid Surfaces 190 Winter , G : Anorganische Pigmente:

Disperse F e s t k ö r p e r mit tech-nisch verwertbaren optischen und magnetischen Eigenschaften . . . . 736

Win t te r l in , J., siehe R. J. Behm 294 Wi tan , K . , siehe G. Wedler 235 W i t t , Η . Τ., E. Schlodder, K . Brettel,

ö . Saygin: Reaction Sequences from Light Absorpt ion to the Cleavage of Water in Photosyn-thesis — Routes, Rates and I n -termediates 1015

W i t t , W., E. Bauer: Phase Transi-tions in Adsorpt ion Layers on bcc(110) Surfaces: S and Ο on Mo(110) 248

Woermann, D. , siehe R. Wehn . . . . 121 — siehe D . Schwahn 339 — siehe P. Schwahn 773

Wold , Α., siehe R. Tenne 545 Woldan, Μ.: Partial M o l a l Volume

of Some A l k a l i Halides in Water - Acetamide Mixtures 1164

Wolf rum, J., siehe Β. Raffel 997 — siehe ΊΓ. Dreier 1010 — siehe Μ. Schneider 1058 W u , P. K. , siehe M . Tringides 277 Wunderl ich, I . , siehe H . Rehage . . . 1071

Yonezawa, Y., D . M ö b i u s , H . Kuhn: Scheibe-Aggregate Monolayers of Cyanine Dyes without Long A l k y l Chains 1183

Yoshida, N . , siehe W. Ueda 353 Yoshimura, Υ., M . Nakahara: A d -

di t iv i ty Rule of the Partial M o l a l Volume. 4. Its Proof Based on the Postulate of Independent Volume Changes for U n i t Reactions . . . . 58

Zahn, Μ., siehe Τ. Dreier 1010 Zellner, R., siehe V. Handwerk . . . . 92 Zimmermann, H . W., siehe H . Ber

tagnolli 502 Zumofen, G , siehe A. Blumen . . . . 1048

Μ. Tringides, P. Κ. Wu, W. M o r i t z , and Μ. G. Lagally: Order ing Kinetics for Ο on W ( t l O ) 277

Ordering Kinetics for Ο on W(110)*) M. Tringides, P. K. Wu, W. Moritz**), and M. G. Lagally

Department of Metal lurgical and Mine ra l Engineering and Materials Science Center, Univers i ty of Wisconsin, 1509 Universi ty Avenue, Madison, W I 53706, U S A

Chemical Kinetics / Critical Phenomena j Electron Diffraction j Phase Transitions / Surfaces A n analysis of peak-intensity-vs-time data for L E E D from W(110)p(2x l ) - 0 at saturation coverage is made to emphasize early times. From this analysis an exponent χ ~ 0.33 for the g rowth of the average size of ordered domains is extracted. Experimental evidence for a ground-state degeneracy ρ = 8 in this system is presented, supporting the existence of slow domain g rowth that is suggested by the

growth exponent. The relationship to recent theoretical results is discussed.

*) Research Supported by U.S. Nat ional Science Foundat ion, Solid State Chemistry Program, Gran t N o . D M R 83-18601. **) Permanent address: Inst i tut für Kristal lographie, Un ive r s i t ä t M ü n c h e n , M ü n c h e n , Germany.

Ber. Bunsenges. Phys. Chem. 90, 2 7 7 - 2 8 1 (1986) - © V C H Verlagsgesellschaft m b H , D-6940 Weinheim, 1986. 0005-9021 /86 /0303-0277 $ 02.50/0

Μ. Tringides, P. Κ. W u , W. Mor i t z , and Μ. G. Lagally: Order ing Kinetics for Ο on W ( l 10) 278

Introduction

The ordering of two-dimensional (2-D) overlayers reflects a host of fundamental phenomena, such as adsorbate interactions, diffusion barriers, the mode of growth, substrate and overlayer symmetry, the influence of island boundaries or domain walls, and the existence of substrate defects. As a consequence, the kinetics of ordering of 2-D systems has been the subject of recent intense interest [1 —10]. A measure of the growth kinetics is the increase in average size of ordered domains with time. If one assumes that a growth law oUx is operative, then the exponent χ defines this rate of growth. The growth law < L > a i x follows from the scaling hypothesis. The determination of χ under different conditions and its relationship to the number of ground states of the system have been of particular concern. The ordering of Ο on W(110) encompasses several of the features that are at the core of a detailed understanding of growth kinetics of 2-D systems. There are at least two ordered structures of Ο on W(110), both one-phase and coexistence regions are easily accessible in temperature, the ground state of the p(2x l ) - 0 structure is highly multiply degenerate (p = 8 for the most probable adsorption site and ρ = 4 for other sites), and some estimates of the adatom interactions are available from fits [11 — 13] to the experimentally determined phase diagram [14]. Both the W(110)/?(2x l ) -0 (tf sm = 0.5) and W ( l 10)/?(2 χ 2)-0 (0*at = 0.75) phases belong to the xy model with cubic an-isotropy i f ρ = 4 [15].

Ordering kinetics of two-dimensional systems are most easily studied with a surface-sensitive diffraction technique. Because a large area of the sample surface is illuminated coherently, diffraction provides a statistical average of the order that is present at the instant the diffraction measurement is made. Measurements are invariably made on a quenched-in, disordered phase that is subsequently rapidly raised to and held at a particular annealing (growth) temperature. Low-energy electron diffraction (LEED) is the most prevalent technique in use for these purposes [ 6 - 1 0 ] .

3 4 5 6 7

L0G e (T IME)

Fig . 1 L o g o f the peak intensity o f the (1/2, 1/2) diffracted beam from W ( 1 1 0 ) p ( 2 x l ) - 0 at saturation coverage vs log (time) for three different annealing temperatures. The nearly parallel straight lines indicate that the data can be fitted using a single domain growth

mechanism. The average slope o f the lines is 0.66

From the diffraction measurement, the average size of ordered regions can in principle be determined both from the angular profile or from the peak intensity of diffracted beams from the overlayer phase. All but the most recent measurements have considered only the peak intensity. We discuss here a reinterpretation of peak intensity-vs-time data for W(110)/?(2 χ l ) - 0 that emphasizes early-time behavior. We discuss possible difficulties with this interpretation that apply also to others based on peak-intensity measurements. We also present new experimental evidence that suggests that the ground state degeneracy for W(110)p(2 χ l ) -0 is p = 8.

Results In the earlier analysis of the growth of the saturation-coverage

W(110)p(2 χ l ) - 0 phase (prepared by adsorbing Ο at L N 2 temperatures and then annealing at higher temperature) [ 7 ] emphasis on long-time behavior required a fit wi th two different ordering mechanisms. I f the long-time behavior is deemphasized relative to the short-time behavior (accomplished by p lo t t ing the data on a log-log plot and using the best slope to fit the data), it is evident that a single ordering mechanism suffices. This is shown in Fig. 1, in which \ogJp, the measured peak intensity, is plotted vs. l og / , the time, for three different temperatures. The average slope of these curves gives

JPztQM . (1)

I n o r d e r to extract the time d e p e n d e n c e of a n a v e r a g e d o m a i n size from the peak intensity (i.e., the exponent x) some assumption needs to be made about how the peak intensity reflects the average domain size. I f one assumes that there are Ν = Af, χ M2 = Lxa χ L2b atoms in a 2-D domain and all atoms contribute coherently, then the peak intensity scattered from this domain is

IpocN2\f\2 = M2Mi\ß2. (2)

I f R domains o f this k ind scatter incoherently, then

/ p a R < L > 4 . (3)

This is the relation that has been used previously [ 6 , 7 ] . However, in this result the coverage is not conserved as the domains grow. Furthermore, an incoherent superposition of scattering amplitudes from different domains can not be justified because, i f one assumes ordered domains of adsorbed species on a well-ordered substrate the atoms all contribute coherently. A coherent superposition w i th conserved coverage gives

/ „ a < L > 2 . (4)

This can easily be seen as follows. Consider the diffuse intensity integrated over a Br i l lou in zone, which is equal to N9 the total number of overlayer atoms, and thus to the coverage Θ:

θαΝ= f / ( S ) d S ~ w 2 / p , (5) B.Z.

where w, the w i d t h of the diffracted-beam profile, is the inverse of the average domain diameter w ~ l / < £ > . I f one assumes the coverage is conserved dur ing the ordering process it is clear that Eq. (4) obtains directly.

We have neglected here possible multiple-scattering effects and a possibility that the atoms in the domain walls may be displaced f rom lattice sites and therefore do not contr ibute coherently to the intensity. This effect would simulate a coverage that is not constant

Μ. Tringides, P. Κ. W u , W. Mor i t z , and Μ. G. Lagally: Ordering Kinetics for Ο on W(110)

in time. In that case, a value somewhere between the above limits probably results, but it is usually assumed that this situation does not occur. It should be noted that l imited instrument response does not at all affect these arguments, i.e., one can not assume incoherent superposition as a result of a l imited capability of the instrument to resolve long-range correlations (i.e., a small "transfer width") [16 ] . F rom Eqs. (1) and (4) then, < L > o ü 0 3 \ i.e., χ = 0.33.

0 200 400 600 800 1000 1200 1400

TIME (sec)

Fig. 2 Domain growth vs. time. The data of Fig. 1 arc replotted assuming the average linear dimension of domains is proport ional to the

square root of the peak intensity

- 5 . 0 I " _ _ _

-8.0 I 1 1—__ 1 3 .5 4 . 0 4 . 5

1000/TEMPERATUR Ε ( κ " ' )

Fig. 3 Acdvation energy for the ordering process indicated in Fig. 2. The slopes of the lines in Fig. 2 are plotted vs. inverse temperature. The fit gives an activation energy of 0.15 ± 0.1 eV and a preexponential

factor of 6.8 1 0 - ' ± 2 sec" 1

Discussion

Fig. 2 shows the data of Fig. 1 plotted so that the time axis is linear. I t clearly shows that a single process suffices to explain the growth behavior over the range over which the data were taken. I f one assumes that

< Ζ > ^ = Γ ( Γ ) ί ( 6 ) = r 0 e - A f l > * r i ,

then plotting the log of the slopes of the lines in Fig. 2 vs. inverse temperature gives the activation energy for the

279

change in 3 0 5 . This is shown in Fig. 3. We have no physical interpretation at present for this activation energy. However, one can expect it to reflect the difficulty with which boundaries are moved in the overlayer film. It is clear that one should not expect the value to reflect a simple diffusional barrier [17,18].

The value obtained in Fig. 2 is very close to that of Sadiq and Binder [1] , who calculated ordering for a system analogous to W(110)p(2x l ) - 0 at saturation coverage, using a ground state degeneracy of ρ = 4. We present evidence here that ρ = 8 in W(110)p(2 χ l ) -0 . This is done by evaluating the development of the diffuse intensity as a function of coverage for an overlayer that is assumed to be a random lattice gas. This is achieved by depositing Ο at low enough temperatures so no ordering occurs (i.e., no superlattice reflections appear with time). The overlayer atoms are all assumed to occupy lattice gas sites. These two statements are equivalent to saying that there is sufficient driving force for atoms to assume regular lattice sites, but insufficient activation energy for them to migrate between sites to form an ordered structure. In that case, the diffuse intensity, 7D, is [19]

/ D « 0 ( l - 0 ) , (5)

where 0 is the coverage, and the 1 implies that saturation is one monolayer. If there is only one possible energetically equivalent lattice site per unit mesh, the diffuse intensity has a maximum at 0 = 0.5. The decrease beyond this point is due to accidental correlations between atoms placed randomly in lattice sites. At Θ = 1, of course, no disorder diffuse intensity can be present, because all sites are occupied [19]. If these are two possible energetically equivalent sites in the unit mesh then the diffuse intensity will not have a maximum at 0 = 0.5, but rather only at 0 = 1 . In other words, accidental correlations can not reduce the diffuse intensity. In W(110) the two three-coordinated sites on either side of the long-bridge site are equivalent. Only one can be occupied in each unit mesh, but different unit meshes can have one or the other occupied. This site would produce a ground state degeneracy of ρ = 8, two translational antiphase domains and two rotational antiphase domains for each possible three-coordinated site. This site is the only one on W(l 10) for which ρ = 8, but is the site that is found in LEED calculations [20] to be the preferred one. Fig. 4 shows the diffuse intensity vs. exposure. The measurement was made with a fluorescent screen subtending a solid angle of approximately 10°, at sufficiently low energy so that the (00) and (10) fundamental reflections just fall off the sides of the screen. The screen thus measures a reasonable fraction of one Brillouin zone. Ο was adsorbed at L N 2 temperatures and the background intensity monitored as a function of coverage. Fig. 4 also shows the diffuse intensity measured for W(112) [21], for which ρ = 2 and only one site per unit mesh is possible.

One of the important questions in theoretical growth dynamics studies is the influence of ground state degeneracy. Our present interpretation provides good agreement for the growth exponent χ with the calculation of Sadiq and Binder

280 Μ. Tringides, P. Κ. W u , W. Mor i t z , and Μ. G. Lagally: Order ing Kinetics for Ο on W(110)

to

w ( i i2) WANG a / I ^ v

L U / GOOD

/ P ( 2 X I ) - 0

0 - 0 . 5 /

/ /

/

ONE MONOLAYER

/ /

/ /

1 ^ ^ ^ ^ 1

I ^ - " " " ^ /

ι

GOOD P(2X2)-0 0~ 0.75

/ GOOD / P(2XI) -0

/ β - 0 . 5

/ W ( I I O )

EXPOSURE

Fig . 4 Diffuse intensity vs. exposure for 0 adsorption on two surfaces of W at temperatures below which order ing occurs. Dashed line: Ο on W(112) [ 2 1 ] . Solid line: Ο on W(110). The arrows indicate exposure values at which o p t i m u m superlattice patterns are observed for adsorption at higher temperatures. The ground state degeneracy influences the posit ion in exposure of max imum diffuse intensity. I f ρ = 4 in 0 / W ( l 10), a peak in the diffuse intensity should occur in the vicini ty of 0 = 0.5. The absence of such a.peak implies that ρ = 8. Fo r 0 / W ( l 12) (p = 2) a peak is observed at the appropriate

coverage

[1 ] , which was done for ρ = 4. This would, on the surface, suggest that ground-state degeneracy is not very important in influencing the growth exponent in this system. A possible explanation is that, although the ground state is eight-fold degenerate, only the four-fold degeneracy is effective, because the oxygen atom cannot occupy both three-fold sites in the unit cell. However, this conclusion can not be reliably drawn even in this system, and certainly not in general, because a number of other factors can affect the growth exponent, including the temperature at which growth occurs [1] , coverage less than saturation [22], substrate defects, and the assumption that all atoms are in lattice sites. No definitive conclusion can therefore be drawn at this time.

Summary

We have reevaluated data for the LEED peak intensity from ρ (2x1) superlattice beams in the ordering of Ο on W(110) and have found that a single growth exponent of χ — 0.33 fits the data over the time range that was measured. This agrees closely with theoretical results [1] . The ground state degeneracy chosen in the theory was ρ = 4. We have shown that ρ = 8 in the physical case. To check the influence of ground state degeneracy in this system, it is suggested that identical Monte-Carlo calculations be performed for ρ = 4 and ρ = 8.

In this analysis, we have used the peak intensity of the (1/2, 1/2) superlattice beam. No account was taken of the

instrument response function, (i.e., J p in Eq. (1) was assumed to be Ip in (Eq. (4)) an approximation that is equivalent to assuming that the island size is always small relative to the maximum distance that the instrument can resolve, so that the instrument response function is a negligible part of the measured profile. Initial measurements [18] indicate that the island size at low annealing temperatures is in fact of the order of 10 — 20 atoms in any direction, even for very long ordering times. Such small sizes make the neglect of the instrument response function a reasonable approximation. On the other hand, they also suggest some kinetic limitation to continued growth, such as substrate defects or domain wall interference.

Finally, use of the peak intensity in this simple way assumes the validity of the kinematic approximation. However, it has been shown that the peak intensity may be quite sensitive to multiple-scattering effects [23]. A far more reliable method for evaluating the growth of chemisorbed overlayers is from angular profiles of the superlattice beams [24]. Such work is in progress on this system.

We thank D. Savage and D . Saloner for useful discussions.

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gally, Phys. Rev. Lett . 5 / , 1577 (1983). [8] R. J. Behm, G . E r t l , and J. Win t t e r l in , this conference. [9] W . W i t t and E. Bauer, this conference. W . W i t t , Ph. D . Dis

sertation, U n i v . Clausthal 1985. [10] G . E r t l , this conference. G . E r t l , P. R. N o r t o n , and J. Rustig,

Phys. Rev. Let t . 49, 177 (1982). [11] W . Y . Ching, D . L . Huber, M . Fishkis, and M . G . Lagally,

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[15] E. Domany , M . Schick, J. S. Walker, and R. B. Grif f i ths , Phys. Rev. Β18, 2209 (1978).

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D. Mueller et al.: Halogen Overlayer Structures on Fe( l 10) 281

[19]! A l t h o u g h the dependence on 0 is as indicated in Eq. (5), the actual situation is somewhat more complex. A more detailed treatment wi l l appear elsewhere. W . M o r i t z , P. K . W u , and M . G . Lagally, in preparation.

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[21] G.-C. Wang, personal communicat ion, see also Ref. [6]. [22] Κ. Binder, this conference and personal communicat ion. [23] W . M o r i t z and M . G . Lagally, Phys. Rev. Lett . 56, 865 (1986);

H . Jagodzinski, Z . Naturforsch. 37a, 1103 (1982).

[24] W. Mor i t z and M . G . Lagally, in preparation. H . Jagodzinski, W. Mor i t z , and D . Wol f , Surf. Sei. 77, 233 (1978); W . M o r i t z , Η . Jagodzinski and D . Wol f , Surf. Sei. 77, 249 (1978); W. M o r i t z , in Inst. Chem. Conf. Ser. 4t, 266 (1978).

Presented at the Discussion Meet ing o f the Ε 6151 Deutsche Bunsen-Gesellschaft für Physi-kalische Chemie "Phase Transi t ions on Solid Surfaces" in Erlangen, f rom Septem-ber 2 5 t h - 2 7 t h , 1985

Ber. Bunsenges. Phys. Chem. 90, 2 8 1 - 2 8 4 (1986) - © V C H Verlagsgesellschaft m b H , D-6940 Weinheim, 1986. 0005-9021 /86 /0303-0281 $02.50/0