Volume 50 a Zeitschrift für Naturforschung 1995

Inhaltsverzeichnis

N u m b er 1 Dielectric Relaxation of NaC104 Solutions in For- mamide, N-Methylformamide, and N,N-Dimethyl- Original Communications formamide J. Barthel, K. Bachhuber, and R. Büchner 65

7Li-NMR Studies on Molecular Motion of Hydrated The Electronic Structure of the Fe4S4+ Cluster in Lithium Ions in Concentrated Aqueous Solutions Proteins: The Importance of Double Exchange Pa­ of LiCl, LiBr, and LiSCN at Low Temperatures rameter T. Hasebe and K. Tanaka 1 M. Belinskii, I. Bertini, O. Galas, and C. Luchinat 75 Dynamics of the Sulfate Ion in Dilute Water-DMF Solutions Molecular Dynamics in the Solid Trimethylamine- H. Nomura, S. Koda, and T. Sakurai 7 Borane Complex: A Deuterium NMR Study G. H. Penner, B. Zhao, and K. R. Jeffrey 81 and Structure of Isothyiocyanate Complexes of Manganese (II), Cobalt (II) and Is Solid State 91Zr NMR Feasible? Zinc (II) Ions in N,N-Dimethylacetamide P. Hartmann and G. Scheler 90 M. Koide and S. Ishiguro 11 Deuteron NMR of Methyl Groups in the Tunneling On the Structure Factor for Water at Small Regime. A Single Crystal Study of Aspirin-CD3 Wavenumbers A. Detken, P. Focke, H. Zimmermann, A. D. Trokhymchuk, M. F. Holovko, U. Haeberlen, Z. Olejniczak, and K. Heinzinger 18 and Z. T. Lalowicz 95

Structure of the Solvated Strontium and Barium Ions in Aqueous, Dimethyl Sulfoxide and Pyridine Solu­ tion, and Crystal Structure of Strontium and Bar­ N u m b er 2/3 ium Hydroxide Octahydrate I. Persson, M. Sandström, H. Yokoyama, Original Communications and M. Chaudhry 21 Tunable Real Space Transfer Oscillator by Delayed Comparison of the Structure of Liquid Amides as Feedback Control of Chaos Determined by Diffraction Experiments and D. P. Cooper and E. Schöll 117 Molecular Dynamics Simulations P. C. Schoester, M. D. Zeidler, T. Radnai, Explosive Instability in Superposed Fluids in Hydro- and P. A. Bopp 38 magnetics G. K. Gill and S. K. Trehan 125 Transfer Gibbs Free Energies of Divalent Anions from Water to Organic and Mixed Aqueous-Or­ The 33S Nuclear Quadrupole Hyperfine Structure in ganic Solvents the Rotational Spectrum of 32S, 33S Dimethyl Y. Marcus 51 Disulfide H. Hartwig, U. Kretschmer, Solid-Solute Phase Equilibria in Aqueous Solutions. and H. Dreizler 131 IX. Thermodynamic Analysis of Solubility Mea­ surements: La(0H)m(C03)9 • rH 20 Calculations of 14N and 2H Nuclear Quadrupolar H. Gamsjäger, H. Marhold, E. Königsberger, Coupling Constants for Liquid Ammonia Y. J. Tsai, and H. Kolmer 59 A. Laaksonen and R. E. Wasylishen 137 I nhaltsverzeichnis VII Self-Diffusion in Compressed Dimethylether: The In­ Oxidation of Fe — Cr — AI and Fe — Cr — AI — Y Single fluence of Dipole-Dipole Interaction and Hydro­ Crystals gen Bonding Upon Translation Diffusivity in Sim­ H.J. Grabke, M. Siegers, ple Fluids and V. K. Tolpygo 217 A. Heinrich-Schramm, W. E. Price, and H.-D. Lüdemann 145 Acceleration of Mass Transfer in Gas/Liquid-Reac- tions by Sonic Vibrations: Fat Hydrogenation as a Test Reaction (In German) p, T-Dependence of Self Diffusion in Mixtures of A. Bartsch 228 Hexane/Ethanol and Hexane/Dimethylether A. Heinrich-Schramm, W. E. Price, Influence of Molecular Size on Adsorption Isotherms and H.-D. Lüdemann 149 (In German) C. Meyer und D. Hesse 235 Stability of (N i^ L i,) (L i^ N i^ O j Ordered Solid Solution The Structural and Dynamic Properties of some Tran­ V. M assarotti, D. Capsoni, and M. Bini 155 sition Metal Aqua Cations: Results from Neutron Scattering G. W. Neilson, S. Ansell, and J. Wilson 247 2D 31P Exchange NMR: A new Approach for a Di­ rect Probing of the Connectivities of Q" Units in A Raman Study of Alcoholic Lithium Perchlorate Glasses Solutions in the Glassy State R. Born, M. Feike, C. Jäger, H. Kanno, M. Honshon, and S. Yamauchi 257 and H.W. Spiess 169 The Structure of Hydroxylamine - Water Mixtures. A New Weak Field Double Resonance NMR Spec­ Results of Monte Carlo Simulations trometer S. Vizoso and B. M. Rode 263 C. Akay and A. Yal^iner 177 Raman Spectral Studies of Aqueous Acidic Pyrazine Solutions On the Use of Pulsed Field Gradients in a High-Field A. G. Brolo and D. E. Irish 274 NMR Spectrometer to Study Restricted Diffusion in Zeolites Photosensitized Reduction of Carbon Dioxide in So­ J. Kärger, N.-K. Bär, W. Heink, H. Pfeifer, lution Using Noble-Metal Clusters for Electron and G. Seiffert 186 Transfer N. Toshima, Y. Yamaji, T. Teranishi, The Nature of the Mn Moment in Laves Phase Com­ and T. Yonezawa 283 pounds: Evolution of the Magnetic Order in H o ^ Y .M n ; Raman Spectroscopic Study of the Ion Association of C. R itter, R. Cywinski, Lithium Sulfate Aqueous Solutions and S. H. Kilcoyne 191 F. R u ll 292

X-Ray Diffraction Study of the Solvation Structure A Study of the Distribution of Sodium Cations in the of the Cobalt (II) Ion in N,N-Dimethylformamide Zeolites NaX, NaY, and ZnNaY Using Carbon Solution Monoxide Adsorption and 23Na NMR Techniques H. Yokoyama, S. Suzuki, M. Goto, A. Seidel and B. Boddenberg 199 K. Shinozaki, Y. Abe, and S. Ishiguro 301

The Anisotropy of the Molecular Reorientational MD Simulation of Crystal Growth from Sodium Motions in Liquid Methanol Chloride Melt R. Ludwig, Ch. Rusbüldt, Ph. A. Bopp, I. Okada, T. Nakashima, Y. Takahagi, and M. D. Zeidler 211 and J. Habasaki 307 Inhaltsverzeichnis VII Effects of , Temperature, and Deuteron NMR Spectra of ND4 Tunneling at Low on the Viscosity of Aqueous Ammonium Bromide Frequencies in (ND4)2SnBr6 Solution Z.T. Lalowicz, R. Serafin, M. Punkkinen, Y. Yoshimura, S. Sawamura, A. H. Vuorimäki, and E. E. Ylinen 373 and Y. Taniguchi 316 XPS Investigations on Solid and Vaccuum Deposited, Oxidized and Non-oxidized Palladium J. Kintrup and H. Züchner 381

Enhanced Sensitivity of Zero-Field NMR Spectros­ Number 4/5 copy at High Magnetic Fields H. Ernst, M. Fechtelkord, Original Communications D. Fenzke, D. Freude, B. Knorr, H. Kolley, and H. Pfeifer 388 Bose-Einstein Condensation and Condensate Tunnel­ ing Depolymerization Kinetics of Glass-Forming Chalco- S. Grossmann and M. Holthaus 323 genide Melts. Coherence Transfer NMR Studies of Phosphorus Selenide On the High Ionic Conductivity of Solid Solutions of R. Maxwell, H. Erickson, and H. Eckert 395 Lithium Sulphate in Hexagonal Sodium Sulphate Na2S04 (I) Rotational Tunnelling in Binary Tetramethylmetal A. Lunden and L. Nilsson 327 Mixtures M. Prager, Da Zhang, and Al. Weiss 405 Model Calculations of the Structure of Ni-Nb Metal­ lic Glasses Progress in Structural Elucidation of Glasses by 27A1 P. Lamparter 329 and 1XB Satellite Transition NMR Spectroscopy G. Kunath-Fandrei, D. Ehrt, Thermodynamic Analysis of Isotope Effects on Triple and C. Jäger 413 Points and/or Melting Temperatures W. A. Van Hook 337 CP/MAS NMR of Heavy Spin-1/2 Nuclei at B0 = 2.35 T The High-Frequency Rotational Spectrum of 1,1- F. Ambrosius, E. Klaus, T. Schaller, Dichloroethylene and A. Sebald 423 Z. Kisiel and L. Pszczölkowski 347

Computer Simulation of a Simple Model for Rota­ Dynamic Behaviour of Tetramethylethylene Diamine tional Moment Fluctuations in an Associating (TMEDA) Ligands in Solid Organolithium Com­ Liquid pounds: A Variable Temperature 13C and 15N H.-G. Köhne and M. Stockhausen 352 CP/MAS NMR Study W. Baumann, Y. Oprunenko, Thermodynamic Excess Functions for Quasiternary and H. Günther 429 Solid Solutions of Type M (X, Y, Z). I. The System Pb (S, Te, Se) Critical Curves and Phase Equilibria of Binary V. Leute 357 Methanol-Systems for High and Temper­ atures 2H and 14N NMR Studies of the Dynamics in the M. Neichel and E. U. Franck 439 Incommensurate Phases of Betaine Calciumchlo- ride Dihydrate Polarizabilities of Isolated Silicon Clusters U. Hacker, D. Michel, K.-P. Holzer, R. Schäfer, J. Woenckhaus, J. A. Becker, and J. Petersson 368 and F. Hensel 445 I nhaltsverzeichnis VII Structural Analysis of a Cs + O Coadsorption Phase Some Aspects of Spinodal Decomposition in Spinel on a Ru (0001) Surface Solid Solutions M. Gierer, H. Bludau, H. Over, N. Burkert, R. Grüne, H. Schmalzried, and G. E rtl 453 and S. Rahman 525

The Phase Diagram of the Quasiternary System (Sn, SIMS Investigations on the SmCo5D„ and LaNi5H„ Pb) (S, Te) Systems V. Leute, S. Brinkmann, J. Linnenbrink, R. Dobrileit and H. Züchner 533 and H. M. Schmidtke 459 Proton Diffusion in Strontium Cerate Ceramics Stud­ Helium Atom Scattering from CF4, CF3C1, CF2C12 ied by Quasielastic Neutron Scattering and and CFC13 in Crossed Molecular Beams Impedance Spectroscopy C. Gebauer, O. Klein, R. Schmidt, Ch. Karmonik, R. Hempelmann, Th. Matzke, and W. Seidel 468 and T. Springer 539 Thermodynamics and Hysteresis for Hydrogen Solu­ Computer-Aided Arrhenius-Evaluation of Kinetic tion and Hydride Formation in Pd-Ni Alloys Data T. B. Flanagan and H. Noh 475 P. Hugo, J. Leonhardt, and S. Wagner 549 Ion-Ion De-Association and Association of Strong Electrolytes at High Dilution from Nuclear Mag­ On the Madelung Part of Lattice Energy. New Path­ netic Relaxation Measurements ways to use it as a Tool in Solid State Chemistry E. Detscher, H. G. Hertz, M. Holz, (Part 1) and Xi-an Mao 487 R. Hoppe 555

Modelling of Wall-cooled Fixed-bed Chemical Reac­ Notes tors with One- and Two-phase Models St. Hein and D. Vortmeyer 568 Differential Thermal Analysis and Dielectric Studies on 2-Methyl-2-Nitro-Propane under High Pressure Decomposition of Plane Waves into Irreducible Rep­ D. Büsing, M. Jenau, J. Reuter, resentations of Space Groups A. Würflinger, and J. Ll. Tamarit 502 H. Teuscher and P. Kramer 577 Adolf Butenandt zum Gedenken 505 Molecular Motion in Solid Tetraethyl- and Tetra- propylammonium Tetrafluoroborates B. Szafranska and Z. Paj^k 584

N u m b er 6 An Optical Method for the Determination of the Cholesteric Pitch in Liquid Crystals Original Communications I. Dierking, F. Giesselmann, and P. Zugenmaier 589 Creation and Recombination of Frenkel Defects in AgBr Dielectric Relaxation Studies of 5PCH by the Time K. Funke, T. Lauxtermann, D. Wilmer, Domain Spectroscopy Method and S. M. Bennington 509 B. Gestblom and S. Urban 595

Rational Interpolation Formulae for the Excess Quantum Mechanics Derived from Boltzmann's Functions of Binary Mixtures Equation for the Planck Aether H. Brodowsky 521 F. Winterberg 601 Inhaltsverzeichnis VII 35C1 NQR of Impurity Molecules of Tetrachlorides An X-Ray Diffraction Study on Amorphous Transi­ of Group IV Elements in Matrix Crystals of tion Metal-Boron Alloys Obtained by Different Group IV Element Halides Preparation Methods A. M. Raevsky, G. K. Semin, A. Corrias, G. Ennas, G. Paschina, and T. L. Khotsyanova 606 and D. Zedda 672

Accumulation and bifurcation points of the discon­ Note tinuous logistic map T. T. Chia and B. L. Tan 677 Density Profiles at a Water/Liquid Mercury Interface J. Böcker, E. Spohr, and K. Heinzinger 611 Short-Range Order Details of Metaphosphate Glasses Studied by Pulsed Neutron Scattering U. Hoppe, G. W alter, D. Stachel, and A. C. Hannon 684 N u m b er 7

Original Communications

High-Frequency Conductivity Plateau and Ionic Hopping Processes in a Ternary Lithium Borate N u m b er 8 Glass C. Cramer, K. Funke, T. Saatkamp, Original Communications D. Wilmer, and M. D. Ingram 613 Action Integrals for Ellipsoidal Billiards Determination of the Composition of TiNx and P. H. Richter, A. Wittek, M. P. Kharlamov, TiBxNy Films by AES and A. P. Kharlamov 693 M. A. Baker, J. Haupt, and W. Gissler 624 Algebraic Solution of the Coincidence Problem in Molecular Motion in Liquids: The Partially Rigid Two and Three Dimensions Molecule 1,2,3,4-Tetrahydro-5,6-Dimethyl-l ,4-Me- M. Baake, and P. A. B. Pleasants 711 thanonaphthalene. Temperature Dependence of 13C Magnetic Relaxation and Correlation Times Nonlinear Resonance in Neuron Dynamics U. Schlenz, A. Dölle, and H.G. Hertz 631 S. Rader, D. W. Wheeler, W. C. Schieve, and P. Das 718 Diffusive Motion in Stage-1 and Stage-2 Li-Graphite Intercalation Compounds: Results of j?-NMR and On the Time-Independent Perturbation Theory Quasielastic Neutron Scattering D. Campos 727 A. Schirmer and P. Heitjans 643 81 Br Nuclear Quadrupole Relaxation in Aluminium Physical Chemistry of Hydrogenous Species in the Tribromide Si-Si02 System N. Okubo, M. Igarashi, and R. Yoshizaki 737 E. H. Poindexter 653 *H and 19F NMR Study of Cation and Anion Mo­ The 33S Nuclear Quadrupole Hyperflne Coupling tions in Guanidinium Fluoroantimonates in the Rotational Spectrum of 33S Dimethylsulf- M. Grottel, A. Kozak, and Z. Paj^k 742 oxide U. Kretschmer 666 Chemical and Topological Short Range Order of Amorphous Ti-Si Alloys Wiener Indices and Molecular Surfaces A. Pojtinger, R. Bellissent, P. Lamparter, I. Gutman and T. Körtvelyesi 669 and S. Steeb 749 VIII Inhaltsverzeichnis Structure and Dynamics of Crystal Solvates Hexa- Comments on the Dynamical Theory of X-Ray Dif­ phenylditin • 2X, X = Benzene, Toluene, Fluoro- fraction in Crystals benzene, Chlorobenzene, and Aniline. An X-Ray, H. K. Wagenfeld 813 ^(vapor)=/(T). and 2H NMR Study K. Eckardt, H. Fuess, M. H attori, Calculation of Theoretical Alpha Coefficients for R. Ikeda, H. Ohki, and Al. Weiss 758 XRF Analysis of Major and Minor Elements in Iron-rich Geological Samples Direct Determination of the Local Structure in Y. Hua and C. T. Yap 817 Molten Alumina by High Temperature X-Ray Dif­ fraction Y. Waseda, K. Sugiyama, and J. M. Toguri 770 Pressure Dependence of the Dielectric Anisotropy of 5CB and 6CB Solving the Schrödinger-Equation as a One-Dimen- S. Urban 826 sional Problem. II. Tests on One-Electron Atoms H. Preuss, and M. Pernpointner 775 X-Ray Diffraction with Molten A u ^ M n ^ .,-Alloys R. M. Hagenmayer, P. Lamparter, and S. Steeb Comparison of ESR Spectra of Two Cu(II) Salts in 831 Some Amide Solutions B. Robers, and M. Stockhausen 779 NMR and FTIR Characterization of Sol-Gel Derived Ternary Oxide Glasses in the System B a0-T i02- Notes Si02 M. Feike, K. Meise-Gresch, Qi Chen, Static Permittivity and Association in Mixtures of and G. H. Frischat 837 Mono- and Dihydric Alcohols F. F. Hanna, A. H. Shafik, and Nuclear Magnetic Resonance Measurements in Oil- M. Stockhausen 785 Nitrogen Two-Phase Flow G. J. Krüger and A. Birke 845 Zur Erinnerung an Peter Sven Brauer (1911-1995) 787 Rotational Resolution in the VUV-Spectrum of CF3I via Infrared-Ultraviolet Double Resonance Experi­ N u m b er 9 ments A. H. Bahnmaier and H. Jones 852 Original Communications Enumeration of the Staggered Conformers of Alka- Landau Theory of a System with Two Bilinearly Cou­ nes pled Order Parameters in External Field: Exact S. J. Cyvin, J. Brunvoll, B. N. Cyvin, Mean Field Solution, Critical Properties and and W. Lüttke 857 Isothermal Susceptibility A. A. Kornyshev, D. A. Kossakowski, Influence of Temperature and Oxygen Concentration and S. Leikin 789 on the Radiation Induced Oxidation of Phenylala­ nine A Simplified Thermodynamic Theory for Biaxial P. Krajnik, R. M. Quint, S. Solar, N. Getoff, Nematics and G. Sontag 864 Ch. Papenfuss, J. Verhäs, and W. Muschik 795

Bubble Formation in Superposed Magnetic Fluids in Dynamics of Nitrite Ions in the Ionic Plastic Crystal the Presence of and Mass Transfer T1N02 studied by 15N and 205T1 NMR G. K. G ill, R. K. Chhabra, and S. K. Trehan H. Honda, S. Ishimaru, N. Onoda-Yamamuro, 805 and R. Ikeda 871 Inhaltsverzeichnis VII EXAFS Study on the Phase Transition (Phase cc'-S) Polarized Oxygen Ka and Copper La X-Ray Emission in CH3NH3I Spectroscopy of YBa2Cu30 7 H. Ishida, H. Maeda, A. Hirano, T. Fujimoto, Y. A. Kottmann, R. Siebinger, P. Lamparter, Kubozono, S. Kashino, and S. Emura 876 and S. Steeb 935

Electronic Raman Spectra of a Low-Spin Fem Por­ High Resolution NMR Spectroscopy on Whole-Body phyrin and Reexamination of the Vibrational Spec­ Imagers: Optimized Single- and Multi-Pulse Exper­ tra of K3[Fe(CN)6] and [Fe(C5H5)2]BF4 iments in Vitro S. Sievertsen, L. Galich, and H. Homborg 881 F. Schick 942

Dielectric Properties and Characterisation of the Su- Can Twisted Internal Charge-Transfer (TICT) State perionic Phase of [C(NH2)3]2SbCl5*[C(NH2)3]Cl be Formed in Rigid Polymers? (GHCA) A. Kawski, G. Piszczek, and B. Kuklinski 949 J. Zaleski, G. Bator, and R. Jakubas 888 EPR of V02+ Doped Cd2ZrF8 • 6H20 Single Crys­ Phase Diagrams of Binary Systems of Some Alkali tals Iso-Butyrates with One Mesogenic Component G. Jayaram and V. G. Krishnan 953 T. A. Mirnaya, G. G. Yaremchuk, and S. V. Volkov 893 Off-Resonance Nutation NQR Spectroscopy of Pow­ ders N. Ja. Sinjavsky 957

Absorption Model of Hydrogenic Atoms and Ions by Metal Surfaces O. S. Erkovitch, V. V. Komarov, N u m b er 10 A. M. Popova, M. Enderle, O. Melsheimer, and H. Neumann 961 Original Communications Phase Diagrams of Binary Systems of Non-Meso- Electron Plasma Waves on Cylindrical Structures and genic Components: Caesium-Sodium and Cae­ the Concept of an Equivalent Dielectric sium-Lithium Iso-Butyrates V. M. Babovic 897 T. A. Mirnaya, G. G. Yaremchuck, and S. V. Volkov 965 Determination of Particle Densities and Line Profiles in Plasmas by Resonance Interferometry: A Feasi­ Gibbs Transfer Energies of Some Uni-Univalent Salts bility Study using Computer Simulated Refractivity in Water-N-Methyl-2-Pyrrolidinone Solvent Mix­ Data tures at 30 °C C. Haas, G. Pretzler, T. Neger, T. K. Varadarajan, T. V. Ramakrishna, and H. Jäger 902 and C. Kalidas 969

Dynamic Modelling of Heart Beat S. Grossmann and S. Ranft 915 Notes /-Transition to the Bose-Einstein Condensate S. Grossmann and M. H olthaus 921 Decelerated ß-Decay of Tritium Solved in Titanium O. Reifenschweiler 973 On the Structure of Molten and Amorphous Cu84 3P15 7 by X-Ray Diffraction No Reduced Radioactivity of Tritium in Small Tita­ R. M. Hagenmayer, P. Lamparter, nium Particles and S. Steeb 931 E. Wicke 975 X Inhaltsverzeichnis VII N u m b er 11 Defect Chemistry of "BaCu02". I. Oxygen Non- Stoichiometry, Cation Molecularity and X-ray Dif­ Original Communications fraction Determinations G. Spinolo, U. Anselmi-Tamburini, M. Arimondi, P. Ghigna, and G. F lo r 1050 Differential Thermal Analysis (DTA) and Dielectric Studies of 4-(trans-4-Heptyl-Cyclohexyl)-benzoni- Defect Chemistry of "BaCu02". II. Transport Prop­ trile (7PCM) under High Pressure erties and Nature of Defects T. Brückert, D. Büsing, A. W ürflinger, G. Chiodelli, U. Anselmi-Tamburini, and S. Urban 977 M. Arimondi, G. Spinolo, and G. Flor 1059

Study of the Dielectric Properties of 7PCH (4-(trans- Reports 4-Heptyl-Cyclohexyl)-benzonitrile) S. Urban, B. Gestblom, T. Brückert, On the Paddle-Wheel Mechanism for Cation Conduc­ and A. Würflinger 984 tion in Lithium Sulphate A. Lunden 1067 On the Analysis of Twisted Director Configurations A. Kilian and A. Sonnet 991 Nuclear Physics with Antiprotons T. von Egidy, F. J. Hartmann, S. Schmid, Algebraic Approach to the Fixed Point Structure of W. Schmid, K. Gulda, J. Jastrzebski, the Quantum Mechanical Dirac-Coulomb System W. Kurcewicz, P. Lubinski, L. Pienkowski, N. Nag and R. Roychoudhury 995 A. Trzcinska, D. Hilscher, W. Bohne, F. Goldenbaum, U. Jahnke, D. Polster, Density and Electric Conductivity of NaCl-CoCl2 H. Rossner, A. S. Iljinov, D. I. Ivanov, and NaCl-NiCl2 Molten Mixtures M. V. Mebel, V. G. Nedorezov, A. S. Sudov, A. A. Red'kin, A. B. Salyulev, J. Eades, and S. Neumaier 1077 M. V. Smirnov, and V. A. Khokhlov 998 Note High Voltage Plane Cathode-Comb Anode Discharge P. Mezei 1003 Dynamic Dielectric Properties of Some Alkylamino Ethoxylates Surface Growth and Oxidation of Soot Particles A. Saad, U. Becker, M. Stockhausen, under Flame Conditions and Y. Barakat 1083 Th. Schäfer, F. Mauss, H. Bockhorn, and F. Fetting 1009

Friction Drag on a Cylinder Moving in a Nematic N u m b er 12 Liquid Crystal R. W. Ruhwandl and E. M. Terentjev 1023 Fünfzig Jahre Zeitschrift für Naturforschung A. Klemm 1085 Three Theorems for the Spectroscopic-Kinetic Analy­ sis of Chemical Reactions Original Communication H. Mauser and J. Polster 1031 Nonlinearities, Dynamics, and Fractals Spin-Orbit Coupling in the 0 2 Anion J. Parisi 1089 J. Schiedt and R. Weinkauf 1041 From Electric Field Dependent Particle Dynamics to Spark Gap Pressure and Lasing Behaviour of a non- Bistability in the Breakdown of the Quantum Hall Blumlein type Nitrogen Laser Effect S. V. Rodrigues and W. Baumann 1045 J. Riess 1090 Inhaltsverzeichnis VII Investigation of Front Propagation in an Electro­ ESR of Gamma Irradiated Single Crystals of Acetyl­ chemical System: Experiments and Numerical Sim­ choline Picrate and Methoxycarbonylcholine Pi- ulations crate Hemihydrate G. Flätgen, K. Krischer, and G. Ertl 1097 M. Birey, D. M. Zengin, H. Aktas, and A. Alicilar 1156 Attractor Merging Crisis in the Double-Scroll Os­ EPR Investigation of Synthetic, Doped FeS2 and cillator RuS2 Single Crystals B. Reisner, A. K ittel, S. Lück, J. Peinke, M. Schüler, J. Dahlem, and D. Siebert 1159 and J. Parisi 1105 Absorption Spectra of Co(II) Ions Doped in Magne­ Sliding Dynamics of the Frenkel-Kontorova Model sium Thallium Sulphate Hexahydrate T. Strunz 1108 A. V. Subbaiah, J.L. Rao, and Y.N. Naidu 1165 Unusual Absorption and Fluorescence Properties of Nonlinear Dynamics in the Ultradian Rhythm of p-Substituted Stilbenes in Polyvinyl alcohol) Films Desmodium motorium A. Kawski, B. Kuklinski, J.-P. Chen, W. Engelmann, and G. Baier 1113 and T. Nowosielski 1170 Dwelltime Analysis of Symmetry-Breaking Dynami­ Absorption and Fluorescence Properties of p-Substi- cal Systems tuted Stilbenes in Polyvinyl chloride) Film J. Vollmer, J. Peinke, and A. Okninski 1117 A. Kawski, B. Kuklinski, and T. Nowosielski 1175 Application of a Generalized Frobenius-Perron Oper­ Sub-millimeter Wave Spectra of Cyanoacetylene and ator Scheme to Multivariate Nonlinear Dynamical Revised Ground State Constants Systems K. M. T. Yamada, A. Moravec, R. Stoop and W.-H. Steeb 1123 and G. Winnewisser 1179 Stable Kink-Antikink Pairs in Bistable Reaction-Dif­ A Quasi-Optical Multiplier for Terahertz Spectroscopy fusion Systems with Strong Nonlocalities F. Lewen, S. P. Belov, F. Maiwald, Th. Klaus, T. Christen 1128 and G. Winnewisser 1182

An Approach to a Generalized Rössler System via Sub-Doppler Spectroscopy of Ammonia Near Mode Analysis 570 GHz Th. Meyer, M. J. Bünner, A. Kittel, S. P. Belov, Th. Klaus, G. M. Plummer, and J. Parisi 1135 R. Schieder, and G. Winnewisser 1187 Hyperfine Interaction Induced A^-type Doubling in Deterministic Continuous Molecular-Dynamics Sim­ ulation of a Chemical Oscillator the mmw Spectrum of HS33SH A. H. Saleck and G. Winnewisser 1191 H. H. Diebner and O. E. Rössler 1139 Cation Distribution of ZnFe20 4 and CoFe20 4 Reversible Control of Systems Spinels From Anomalous X-Ray Scattering A. A. Hoff, H. H. Diebner, and G. Baier 1141 Y. Waseda, K. Shinoda, and K. Sugiyama 1199 Instabilities in a Simple Enzyme Reaction Caused by Semi-Empirical Fitting of Partial Pair Correlation pH-Dependence Functions of Amorphous Alloys G. Baier, P. Strasser, and U. Kummer 1147 E. Sväb, F. Hajdu, and Gy. Meszäros 1205

Ionic Conductivity in Li20-Al20 3-Si02 Based Sachverzeichnis 1211 Glasses and Glass Ceramics Autorenverzeichnis 1216 P. Lunkenheimer, G. Gerhard, F. Drexler, R. Böhmer, and A. Loidl 1151 Inhaltsverzeichnis Nr. 1-12 I-X II