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       Contents Vol. 55a (2000)

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N u m b e r  1 / 2
Proceedings of the XVth International Symposium on NQI Spectroscopy
(Leipzig, July 25-30, 1999)
Preface
T. Butz, S. Berger, and W. Tröger 		1
Contributions
(A) Resonance and other NQI Techniques
Electron-Gamma PAC: New Possibilities for NQI Studies
J. G. Correia, J. P. Araújo, J. G. Marques, A. R. Ramos, A. A. Melo, J. C. Soares, and the ISOLDE Collaboration 		3
Study of Li Diffusion on Metal and Semiconductor Surfaces via NQI
H. J. Jänsch 		15
Oxygen-17 Nuclear Magnetic Resonance of Organic Solids
S. Dong, K. Yamada, and G. Wu 		21
Two and Three Dimensional Nuclear Quadrupole Resonance in the Investigation of Structure and Bonding
M.-Y. Liao, R. Subramanian, R. L. Yung, and G. S. Harbison 		29
Low Frequency NQR using Double Contact Cross-relaxation
D. Stephenson and J. A. S. Smith 		37
Electric Field Gradient at Nb Site in the Intermetallic Compounds Nb3X (X = Al, In, Si, Ge, Sn) Measured by PAC
A. C. Junqueira, A. W. Carbonari, J. Mestnik Filho, and R. N. Saxena 		41
Quadrupole Interaction of 172Yb and 168Er Nuclei in the First Excited 2+ State
K. Królas, M. Rams, and J. Wojtkowska 		45
Hyperfine Interactions at 181Ta in Hf2Ni7 and Zr2Ni7
M. Marsza\l ek, H. Saitovitch, and P. R. J. Silva 		49
Spin Diffusion in Pure Multiple-Pulse NQR
G. B. Furman, S. D. Goren, A. M. Panich, and A. I. Shames 		54
A Pulsed Spectrometer Designed for Feedback NQR
J. L. Schiano and M. D. Ginsberg 		61 (Full Text)
Optimization of NQR Pulse Parameters using Feedback Control
J. L. Schiano, A. J. Blauch, and M. D. Ginsberg 		67 (Full Text)
The 8-Parameter List Mode for g-g Perturbed Angular Correlation Measurements
M. Marsza\/lek, J. Gr\cebosz, J. Jaworski, Z. Stachura, M. Zi\cebli\'nski, and B. Sulkio-Cleff 		74
Two-dimensional Two Contact Double Resonance Spectroscopy
D. Stephenson 		79 (Full Text)
(B) Structure, Bonding, and Phase Transitions
Effect of Deuteration on Ammonium Motion and Structural Phase Transition Studied by Nuclear Quadrupole Resonance
T. Asaji and T. Ishizaka 		83 (Full Text)
Phase Transitions in Oxides Studied by Perturbed Angular Correlation Spectroscopy
M. Uhrmacher and K.-P. Lieb 		90
Quadrupole Effects on 73Ge NMR Spectra in Isotopically Controlled Ge Single Crystals
S. V. Verkhovskii, B. Z. Malkin, A. Trokiner, A. Yakubovskii, E. Haller, A. Ananyev, A. Gerashenko, Yu. Piskunov, S. Saikin, A. Tikhomirov, and V. Ozhogin 		105
Pressure Dependence of the Chlorine NQR in Chloro Pyridines
K. P. Ramesh, J. Ramakrishna, K. S. Suresh, and C. Raghavendra Rao 		111
Dynamic Behavior of Group 13 Elements in Bromocomplexes as Studied by NQR and NMR
Y. Tomita, H. Ohki, K. Yamada, and T. Okuda 		117
External Influences on the 14N NQR of Ferroelectric NaNO2
S. H. Choh and J. K. Jung 		124
Search for Nucleation of Phase Embryos in Binary Alloys by Impurity Atoms
G. S. Collins, L. S.-J. Peng, and M. O. Zacate 		129
The Temperature Dependence of 121,123Sb, 35Cl, 79,81Br and 127I NQR Spectra in Complexes Cs3Sb2X9 (X = Cl, Br, I)
L. A. Zemnukhova, S. I. Kuznetsov, G. A. Fedorishcheva, and R. L. Davidovich 		134
NQR Investigation of Intercalates and Complexes of Cadmium and Lead Iodides with Pyridine, Aniline, and Piperidine
T. A. Babushkina, K. G. Konopleva, A. L. Tupoleva, N. U. Venskovskii, L. Guibé, M. Gourdji, and A. Péneau 		139
Weakly Coordinating Ligands: Nuclear Quadrupole Coupling Constants and Asymmetry Parameters of Iodocarbons Coordinated to Metal Ions
G. Wulfsberg, J. Robertson, T. A. Babushkina, S. I. Gushchin, H. Terao, and J. Powell 		145
111Cd Time Differential Perturbed Angular Correlation Studies of High Specific Activity 111In-Aqueous Solutions
Z. Z. Akselrod, D. V. Filossofov, J. Buša, T. Bušova, O. I. Kochetov, N. A. Lebedev, A. F. Novgorodov, V. N. Pavlov, A. V. Salamatin, E. N. Shirani, and V. V. Timkin 		151
PAC Identification of Electric-Nuclear-Quadrupole Interactions in Sm-Sesquioxides
M. Rentería, L. A. Errico, A. G. Bibiloni, K. Freitag, and F. G. Requejo 		155
35Cl and 79Br NQR Spectra and the Secondary Bonding of Chalcogen Halide Complexes
Z. A. Fokina 		160
Crystal Structure and Phase Transition of 4-Aminopyridinium Tetrabromoantimonate(III) as Studied by Bromine and Antimony NQR, Proton NMR, and Single Crystal X-Ray Diffraction
M. Hashimoto, S. Hashimoto, H. Terao, M. Kuma, H. Niki, and H. Ino 		167
2H NMR Study of Molecular and Electron Spin Dynamics in Paramagnetic [Co(H2O)6][SiF6]
T. Iijima, M. Mizuno, and M. Suhara 		173
Water Molecular Motion and Hydrogen Bond in Paramagnetic [Cu(H2O)6][PtCl6] as Studied by Single Crystal 2H NMR
M. Mizuno, T. Iijima, K. Orii, and M. Suhara 		178
35Cl NQR in Glassy Crystal of 2-chlorothiophene
H. Fujimori and T. Asaji 		183
Quadrupole Splitting and Paramagnetic Iron Core Structure in Iron-Dextran Complexes: A Mössbauer Effect Study
M. I. Oshtrakh, V. A. Semionkin, O. B. Milder, A.~B. Livshits, and A. A. Kozlov 		186
Variation of Quadrupole Splitting in Modified Oxyhemoglobin: A Mössbauer Effect Study
M. I. Oshtrakh, O. B. Milder, V. A. Semionkin, A. L. Berkovsky, M. A. Azhigirova, E. P. Vyazova 		193
NQR in Alanine and Lysine Iodates
A. M. Petrosyan, V. M. Burbelo, R. A. Tamazyan, H. A. Karapetyan, and R. P. Sukiasyan 		199
Impurity Effects on the Local Structure in the Mixed Hexachlorometallate (A2BCl6: A = K, Rb, B = Sn, Re, and Pb) Studied by the Chlorine NQR
Y. M. Seo, S. K. Song, and J. Pelzl 		207
Halogen NQR and the Phase Transition in CH3Hg-Halide Family
J. Pirnat, Z. Trontelj, J. Lu\vznik, and D. Kirin 		212
Halogen NQR and the Phase Transition in CH3Hg-Halide Family
J. Pirnat, Z. Trontelj, J. Lu\vznik, and D. Kirin 		215
14N NQR Studies of Impurity Effects on the Local Structure of NaNO2-based Mixed Systems
S. K. Song, Y. M. Park, J. K. Jung, Y. M. Seo, and S. H. Choh 		219
127I NQR and Crystal Structure Studies of [N(CH3)4]2CdI4
H. Ishihara, K. Horiuchi, Th. M. Gesing, S.-q. Dou, J.-Ch. Buhl, and H. Terao 		225
Studies of Structure and Phase Transition in [C(NH2)3]HgBr3 and [C(NH2)3]HgI3 by Means of Halogen NQR, 1H NMR, and Single Crystal X-Ray Diffraction
H. Terao, M. Hashimoto, S. Hashimoto, and Y. Furukawa 		230
Perturbed Angular Correlation Studies in SrTiO3 Single Crystals
P. de la Presa, K. P. Lieb, M. Uhrmacher, and L. Ziegeler 		237
Structural Phase Transitions in BaTiO3 Studied via Perturbed Angular Correlations
J. Roth, M. Uhrmacher, P. de la Presa, L. Ziegeler, and K. P. Lieb 		242
(C) Theory of Nuclear Quadrupole Interactions
Cluster Calculations of Hyperfine Interactions in Superconducting Copper Compounds
P. F. Meier, T. A. Claxton, P. Hüsser, S. Pliberšek, and E. P. Stoll 		247 (Full Text)
Quadrupole Interaction in Ternary Chalcopyrite Semiconductors: Experiments and Theory
M. Dietrich, A. Burchard, D. Degering, M. Deicher, J. Kortus, R. Magerle, A. Möller, V. Samokhvalov, S. Unterricker, R. Vianden, and the ISOLDE-collaboration 		256
Charge Distribution Model in Cubic Perovskite-type Compounds
R. E. Alonso and A. López-García 		261
FP-LAPW Study of the EFG at Impurity Sites in Oxides: Cd in Rutile TiO2
L. A. Errico, G. Fabricius, and M. Rentería 		267
Analysis of the Quadrupole Coupling Constants and Mössbauer Isomeric Shifts in Halogen Compounds Within the Gaussian98 Code
O. Kh. Poleshchuk, J. N. Latosi\'nska, and B. Nogaj 		271
Quadrupole Coupling Constants and Mössbauer Isomeric Shifts in Antimony Compounds within Gaussian 98
O. Kh. Poleshchuk and J. N. Latosi\'nska 		276
(D) Advanced Materials and Surfaces
NQR Study of Dynamics in Incommensurate Phases
S. S. Sastry, K. Venu, S. Uma Maheswari, and R. K. Subramanian 		281
47,49Ti NMR in Metals, Inorganics, and Gels
T. J. Bastow 		291
Deuteron NMR Lineshapes in the Antiferroelectric Liquid Crystalline Phase of MHPOBC
R. Blinc, A. Gregorovi\vc, and B. Zalar 		298
Investigation of the Negative Thermal Expansion of ZrW2O8 N. Ulbrich, W. Tröger, T. Butz, and P. Blaha 301
NMR/NQR Study on Magnetism of Spin Ladder Sr2.5Ca11.5Cu24O41
K.-i. Kumagai, S. Tsuji, and K. Maki 		311
Effect of Intermolecular Hydrogen Bonding on the Nuclear Quadrupole Interaction in Imidazole and its Derivatives as Studied by ab initio Molecular Orbital Calculations
N. Nakamura, H. Masui, and T. Ueda 		315
Quadrupolar Relaxation - what would we do without it in High-Tc Superconductor Studies?
D. Brinkmann 		323 (Full Text)
Combined TDPAC and EXAFS Study of InPt/FER Catalysts
J. M. Ramallo-López, F. G. Requejo, A. G. Bibiloni, M. Rentería, L. Gutierrez, and E. E. Miró 		327
Thiourea and Thiourea Inclusion Compounds. A 14N NQR Investigation
L. Guibé, A. Péneau, M. Gourdji, and A. Panich 		331
Specific Heat and Nuclear Quadrupole Resonance Study of Thiourea-Hexachloroethane Inclusion Compound
G. N. Chekhova, S. D. Goren, Ju. H. Krieger, D. Linsky, V. Lusternik, A. M. Panich, A. R. Semenov, and A. Voronel 		335
A133Cs NMR Spin-Lattice Relaxation Study in Incommensurate Cs2CdI4
K. Suzuki, S. Ishimaru, and R. Ikeda 		339
Solid State Effects in 4,6-Dichloropyrimidine Studied by 35Cl-NQR Spectroscopy and ab initio Calculations
J. N. Latosi\'nska and J. Kasprzak 		343
23Na NMR Study of NASICON-type Compounds, Na1+xScxTi2-x(PO4)3
H. Masui, T. Ueda, K. Miyakubo, T. Eguchi, and N. Nakamura 		348
About Excitation of a Quadrupole Spin Echo
I. V. Zolotaryov, A. S. Kim, and P. G. Neufeld 		353 (Full Text)
35Cl NQR Studies of Hydrogen Transfer in Crystalline p-Chlorobenzoic Acid
T.-a. Nihei, S. Ishimaru, and R. Ikeda 		355
NMR of 93Nb perturbed by Quadrupole Interaction in Quasi-One-Dimensional BaNbS3+d
H. Nishihara, N. Kijima, and S. Nagata 		359
Nature of Hydration Water in (±)-Tris(ethylenediamine)cobalt(III) Chloride Hydrate, (±)-[Co(en)3]Cl3·nH2O, as Studied by 1H, 2H, and 17O Solid State NMR
T. Ueda and N. Nakamura 		362
 
N u m b e r  3 / 4
Original Communications
Variation in P-O Bonding in Phosphate Glasses - A Neutron Diffraction Study
U. Hoppe, R. Kranold, D. Stachel, A. Barz, and A. C. Hannon 		369
X-ray Investigations of Liquid Bismuth-Copper Alloys
J. Nomssi Nzali and W. Hoyer 		381
Isolated versus Condensed Anion Structure VI: X-ray Structure Analysis and 81Br NQR of Guanidinium Pentabromodicadmate(II), [C(NH2)3]Cd2Br5, tris-Hydrazinium Pentabromocadmate(II), [H2NNH3]3CdBr5, and bis-Hydrazinium Tetrabromocadmate(II)-Tetra Hydrate, [H2NNH3]2CdBr4-4H2O
H. Ishihara, K. Horiuchi, V. G. Krishnan, I. Svoboda, and H. Fuess 		390
Analytical Dark Solitary Wave Solutions for the Higher Order Nonlinear Schrödinger Equation with Cubic-quintic Terms
W.-p. Hong 		397
High Dimensional Schwartz KP Equations
S.-y. Lou 		401 (Full Text)
On the Entropy Flow between Parts of Multi-component Systems, Partial Entropies and the Implications for Observations
H. H. Diebner 		405 (Full Text)
1H NMR Study of Ionic Motions in High Temperature Solid Phases of (CH3NH3)2ZnCl4
H. Ishida 		412
Covariant Regularization of Nonlinear Spinorfield Quantum Theories and Probability Interpretation
Harald Stumpf 		415 (Full Text)
Electronic Energy Partitioning in the Reactions of Metastable Mg*(3PJ) Atoms with F2, Cl2, Br2, I2, ICl, IBr
P. Kierzkowski, B. Pranszke, A. Kowalski, and M. Menzinger 		433
Sub-Doppler Measurements and Rotational Spectrum of 13C18O
G. Klapper, F. Lewen, S. P. Belov, and G. Winnewisser 		441
Local Temperature of Fluorescent Centres in Polymer Films Determined from Universal Kennard-Stepanov Relation between Absorption and Fluorescence Spectra
A. Kawski, P. Bojarski, and B. Kuklinski 		444
Analysis of the Dielectric Anisotropy of Typical Nematics with the Aid of the Maier-Meier Equations
S. Urban, J. K\cedzierski, and R. D\cabrowski 		449
Photorecombination of Electrons in Dense Plasmas
Y.-D. Jung and S.-Y. Rhee 		457
Hydromagnetic Instability Conditions for Viscoelastic Non-Newtonian Fluids
M. F. El-Sayed 		460
Hole Injection Sequence in BaCuO2 as Seen by XANES
N. Morgante, P. Ghigna, and P. Spinolo 		467
The T,p-Dependence of the Chemical Shift of the Hydroxyl Protons in Deeply Supercooled Methanol and Water
L. Chen, T. Gross, and H.-D. Lüdemann 		473
Transition from Regular to Stochastic Vibration Motion in H3+ Molecule: An ab initio Classical Trajectory Study
P. Babinec, E. Jakubíková, and J. Leszczynski 		478
 
N u m b e r  5
Original Communications
High Resolution Microwave Spectroscopy of Ethyl Vinyl Ether: Accurate Determination of the Methyl Top Internal Rotation Barrier
H. Dreizler and N. Hansen 		481
The Submillimeter-wave Spectrum of the Formaldehyde Isotopomer H2C18O in its Ground Vibrational State
H. S. P. Müller, R. Gendriesch, F. Lewen, and G. Winnewisser 		486
The Submillimeter-wave Spectrum of Propyne, CH3CCH
H. S. P. Müller, S. Thorwirth, L. Bizzocchi, and G. Winnewisser 		491 (Full Text)
Static and Dynamic Structure of Au2Cl6, AuAlCl6 and AuFeCl6 Clusters
Z. Akdeniz and M. P. Tosi 		495 (Full Text)
Hyperfine Interactions at Lanthanide Sites in Europium Doped Oxide Glasses
G. Concas, F. Congiu, G. Spano, A. Speghini, K. Gatterer, and M. H. Bartl 		499
Estimating and Approximating the Total p-Electron Energy of Benzenoid Hydrocarbons
I. Gutman, J. H. Koolen, V. Moulton, M. Parac, T. Soldatovi\'c, and D. Vidovi\'c 		507
Structure of Clusters in Methanol-Water Binary Solutions Studied by Mass Spectrometry and X-ray Diffraction
T. Takamuku, T. Yamaguchi, M. Asato, M. Matsumoto, and Nobuyuki Nishi 		513
Structure and Phase Transition in (C2H5NH3)3Sb2Cl9 · (C2H5NH3)SbCl4; X-ray, DSC and Dielectric Studies
M. Bujak and J. Zaleski 		526
Thermodynamic Measurements of n-Hexadecane (C16H34) and n-Heptadecane (C17H36) at Elevated Pressures
W. Würflinger and M. Sandmann 		533
Explanation of the g-factors and Hyperfine Structure Constants of Co2+ in Tetragonal K2ZnF4
W.-C. Zheng and S.-Y. Wu 		539
Complete Integrability Prolongation Structure and Backlund Transformation for the Konno-Onno Equation
Ch. Kr. Das and A. R. Chowdhury 		545
Thermochromic Shifts of Apsorption and Fluorescence Spectra and Excited State Dipole Moment of PRODAN
A. Kawski, B. Kukli\'nski, and P. Bojarski 		550
Correlation between the 35Cl NQR Parameters of Chloro-containing Organic and Organometallic Compounds and the Results of ab initio Calculations
V. P. Feshin and E. V. Feshina 		555
Note
Mean Amplitudes of Vibration of the Novel [ReFBr5]2- Anion
E. J. Baran 		560
Erratum
Z. Naturforsch. 54a, 675 (1999)
M. Massalska-Arod\'z, A. Würflinger, and D. Büsing 		562
 
N u m b e r  6 / 7
Original Communications
Non-Kinematicity of the Dilation-of-time Relation of Einstein for Time-intervals
S. Golden 		563 (Full Text)
NMR Study of Cation Motions in Ferroic [C(NH2)3]3Bi2Br9
M. Grottel, Z. Paj\cak, and R. Jakubas 		570
Polymeric Structures in Aluminium and Gallium Halides
Z. Akdeniz, M. Çaliskan, Z. Çiçek, and M. P. Tosi 		575 (Full Text)
Properties of Nanocrystalline Nickel Particles in Ni-SiO2 Composites
G. Ennas, A. Falqui, G. Piccaluga, S. Solinas, D. Gatteschi, C. Sangregorio, and A. Benedetti 		581
(3+1)-Dimensional Integrable Models with Infinitely Dimensional Virasoro Type Symmetry Algebra and the Painlevé Property
J. Lin, S.-y. Lou, and K. Wang 		589 (Full Text)
Dielectric Dispersion of New Ferroelectric Cobalt Halide Dimers: Bis-ethanolammonium-hexahalocobaltate, (C2H8NO)2Co2X6, X = Cl/Br
M. F. Mostafa and S. S. Arafat 		595
Influence of Conformational Equilibria upon the Self-Diffusion of the Conformers in Neat Liquids
L. Chen and H.-D. Lüdemann 		605
The Use of Quantum Chemical Semiempirical Methods to Calculate the Lattice Energies of Organic Molecular Crystals. Part I: The Three Polymorphs of Glycine
G. Raabe 		609
Pressure Effects on the Thermal Z/EIsomerization of 4-(Dimethylamino)-4'-nitroazobenzene in a Liquid Polymer. A Comparison of Dynamic Solvent Effects in Polymeric and Monomeric Solvents
A. Shuto, T. Takahashi, Y. Ohga, T. Asano, H. Saito, K. Matsuo, and H.-D. Lüdemann 		616
Ab initio Molecular Orbital Calculations of Reduced Partition Function Ratios of Polyboric Acids and Polyborate Anions
T. Oi 		623
Dielectric Spectroscopy of Solutions of Some Alkylammonium Salts in Chloroform and 1-Octanol
R. Elsebrock and M. Stockhausen 		629
Shear Viscosity of the Homologous Series of nCHBT (n = 0 - 12) in the Isotropic and Nematic Phases
J. Jad\.zyn, R. Dabrowski, K. Glumiak, and G. Czechowski 		637
On the Theory of Relaxation in the Glass Transition Region
H. Baur 		641
The Local Temperature Dependence of Fluorescent Centres in PVA Films on the Excitation Wavenumber
A. Kawski, P. Bojarski, and B. Kukli\'nski 		653
Magnetic Circular Dichroism (MCD) of Four-membered Rings with four p-Electrons
J. Fleischhauer, P. Laur, P. Paetzold, and S. Gabriel 		656
Notes
Conformations of Pyrrolidinium Ion Studied by Molecular Orbital Calculations
H. Ishida 		665
Dielectric Relaxation of Diethylsulfoxide
S. A. Markarian and M. Stockhausen 		667
 
N u m b e r  8
Original Communications
On Diffusion in Some Biological and Economic Systems
E. Ahmed and S. Z. Hassan 		669 (Full Text)
Electrochemical Impedance Spectroscopic Study on Eu2+ and Sr2+ Using Liquid Metal Cathodes in Molten Chlorides
M. Matsumiya and R. Takagi 		673
Dynamic Nuclear Polarization Studies of TANOL/water-glycerol Solutions
\.I. Sert, M. M. Sünnetçio\uglu, R. Sungur, and G. Bingöl 		682
Calculation of the Proton Affinities of Primary, Secondary, and Tertiary Amines Using Semiempirical and ab initio Methods
G. Raabe, Y. Wang, and J. Fleischhauer 		687 (Full Text)
Observation of Carbonyl Fluoride, Ketene, Acetic Acid and Fluorocarbene Produced by an Electric Discharge within a Nozzle by Molecular Beam Fourier Transform Microwave Spectroscopy. A Reaction via a Cycloaddition for Carbonyl Fluoride and Keten?
D. H. Sutter and H. Dreizler 		695
Molecular Motion and Crystal Structure of Solid Tetrapentylammonium Iodide
B. Szafra\'nska, H. Ma\luszy\'nska, and Z. Paj\cak 		706
Effect of Substituent on Crystal Structures of N-(Substituted-phenyl)-2,2,2-Trichloroacetamides, 2/3/4-XC6H4.NHCO.CCl3 (X = Cl, NO2 or CH3)
B. T. Gowda, H. Paulus, and H. Fuess 		711
35Cl NQR Spectra of N-(substitutedphenyl)-2,2-dichloroacetamides and Correlation of 35Cl NQR gCl(w) of Substituted N-Phenyl-Chloroacetamides XyC6H5-yNHCOR (X = Cl or CH3, y = 1 or 2, R = CH2Cl, CHCl2 or CCl3)
B. T. Gowda, B. H. A. Kumar, and H. Fuess 		721
Electron Paramagnetic Resonance Study of Cu2+ in CdCa(CH3COO)4 · 6 H2O Single Crystal
H. Kalkan and I. Senel 		729
Study of High Frquency Relaxation Processes in Three Substances with the -CN Groups at the Lateral Positions
S. Urban, B. Gestblom, R. D\cabrowski, J. Dziaduszek, and H. Kresse 		733
Luminescence Properties of Some Coumarins with 3:4-Fused Ring System
P. Nikolov, I. Petkov, and P. Markov 		741
 
N u m b e r  9 / 10
Original Communications
Special Relativity via Modified Bessel Functions
B. H. Lavenda 		745 (Full Text)
Millimeter Wave Spectroscopy of Ne-CO
D. A. Roth, I. Pak, L. A. Surin, B. S. Dumesh, and G. Winnewisser 		754
Phase Transitions and Water Dynamics of [Mn(H2O)6](ClO4)2 Studied by Differential Scanning Calorimetry and Neutron Scattering Methods
E. Mikuli, A. Migda\l-Mikuli, I. Natkaniec, and J. Mayer 		759
Crystal Structure of Trimethylammonium Tetrafluoroborate in Three Solid Phases
H. Ishida, S. Kashino, and R. Ikeda 		765
Protonation Effect on C-N Bond Length of Alkylamines Studied by Molecular Orbital Calculations
H. Ishida 		769 (Full Text)
Structure and Energetics of Clusters Relevant to Thorium Tetrachloride Melts
Z. Akdeniz and M. P. Tosi 		772 (Full Text)
Structural Studies of N-(2,4,6-trisubstitutedphenyl)-Chloroacetamides, 2,4,6-X3C6H2-NHCO-CH3-yCly (X = CH3 or Cl and y = 1 - 3).
B. T. Gowda, I. Svoboda, and H. Fuess 		779
35Cl NQR and Structural Studies of N-(2,6-Dichlorophenyl)-Amides, 2,6-Cl2C6H3-NHCO-R (R = H or CH3-yXy and X = CH3 or Cl; y = 0, 1, 2 or 3)
B. T. Gowda, H. Paulus, and H. Fuess 		791
Pseudo-symmetries of the Phases of (Et4N)2ZnBr4
P. Sondergeld, H. Fuess, S. A. Mason, H. Ishihara, and W. W. Schmahl 		801
Static and Dynamic Dielectric Polarization and Viscosity of n-Hexylcyanobiphenyl in the Isotropic and Nematic Phases
J. Jad\.zyn, G. Czechowski, and D. Bauman 		810
Ground and Exited State Dipole Moments of LAURDAN Determined from Splvatochromatc and Thermochromatic Shifts of Absorbtion and Fluorescence Spectra
A. Kawski, B. Kukli\'nski, P. Bojarski, and H. Diel 		817
PVT Measurements on 3-Cyanobenzyl 2,5-bis(2-n-octyloxybenzoyloxy)benzoate up to 250 MPa and 423 K
A. Würflinger, M. Sandmann, and W. Weissflog 		823
Defect Structure of Co2+ Center in a-LiIO3 Crystal
S.-Y. Wu and W.-C. Zheng 		828
Photoisomerization of Triazine-stilbene Fluorescent Brighteners in Solution and in their Copolymers with Styrene
I. Grabchev and V. Bojinov 		833
Nonlinear Stability of a Cyclindrical Interface with Mass and Heat Transfer
D.-S. Lee 		837
Notes
Mean Amplitudes of Vibration of the Tetrafluorophosphite, PF4-, Anion
E. J. Baran 		843
Comment on the Paper "Non-Kinematicity of the Dilation-of-time Relation of Einstein for Time-intervals" by S. Golden
G. Schäfer 		845
Comment on the Comment by G. Schäfer on the Paper "Non-Kinematicity of the Dilation-of-time Relation of Einstein for Time-intervals" by S. Golden
O. D. Jefimenko 		846
 
N u m b e r  11 / 12
Original Communications
Stabilization of Chaotic Systems with Phase Coupling
Y. Hardy, W.-H. Steeb, and C. M. Villet 		847
Thermodynamic Functions at Isobaric Process of van der Waals Gases
A. Matsumoto 		851
A Molecular Dynamics Simulation of the Molten Ternary System (Li, K, Cs)Cl
M. Matsumiya and R. Takagi 		856
Ionic Interactions in Lanthanide Halides
Z. Akdeniz, Z. Çiçek, and M. P. Tosi 		861 (Full Text)
Higher Dimensional Integrable Models from Lower Ones via Miura Type Deformation Relation
S.-y. Lou, J. Yu, and X.-y. Tang 		867
Reconstruction of Conductivity Distributions by Means of an Impedance Tomograph (In German)
C. Mrakawa, K. Schilcher, and G. Schuhfried 		877
Ionic Conductivity of Poorly Crystalline Apatite: Effect of Maturation
A. Bensaoud, A. Bouhaouss, and M. Ferhat 		883
EPR Studies of Cu2+ Doped Zinc Saccharin, [Zn(sac)2·(H2O)4]·2H2O Single Crystals
\.I. Kartal, B. Karabulut, F. Köksal, and H. \.Içbudak 		887
Ferroelectricity and Phase Transitions in Pyridinium Periodate Single Crystal
Z. Czapla, S. Dacko, and B. Kosturek 		891
Phase Diagram, Caesium-133 NMR Spectra and Electrical Conductivity of the Binary System Caesium and Zinc Butyrates
T. A. Mirnaya, V. V. Trachevski, V. S. Dradrakh, and D. V. Bylina 		895
Liquid Crystals in Binary Systems of Lead Decanoate with Zinc or Cadmium Decanoate
T. A. Mirnaya, L. S. Sudovtsova, and G. G. Yaremchuk 		899
Spectroscopic Studies of Dimethylamino Derivatives of Fluorene
J. Heldt, J. R. Heldt, T. Redzimski, H. Diehl, and P. Schultz 		902
Laser Compression and Ignition of Z-Pinch Magnetized Dense Fusion Targets
F. Winterberg 		909
Remarks on Local Energy and Perturbations
M. G. Marmorino 		912
Studies of the Local Phase-transition Behaviour for Ni+-II Centers in RbCaF3 Crystal from EPR Data
W.-C. Zheng and S.-Y. Wu 		915
Molecular Ordering of 4-Acetyl-2'-Nitrobiphenyl - A Computational Analysis
D. P. Ojha 		918
Molecular Ordering in Liquid Crystalline EMBAC. A Quantum Mechanical Study
D. P. Ojha 		923
Molecular Ordering of a Nematic Liquid Crystal in a Dielectric Medium
D. P. Ojha, B. R. Rajeswari, and V. G. K. M. Pisipati 		929
DTA and pVT Measurements on 4-cyanobenzyl-5-(4-n-octyloxybenzoyloxy)-2-undecyloxybenzoate up to 250 MPa and 383 K
A. Würflinger and W. Weissflog 		936
Polarized Chirped Soliton Oscillations in a Lossy Elliptically Low Birefringent Optical Fiber
M. F. Mahmood 		941
AC Conduction Mechanism in Perovskite-like Dimers (C2H8NO)2M2X6, M = Co/Cu, X = Cl/Br
M. F. Mostafa and S. S. Montasser 		945
Effect of Modulation on Thermal Convection Instability
P. K. Bhatia and B. S. Bhadauria 		957
Surface Properties and Concentration Fluctuations in Sn-based Molten Alloys
L. C. Prasad and V. N. Singh 		967
The Number of High-Energy Bands in the Photoelectron Spectrum of Alkanes
R. Merris and I. Gutman 		973
Notes
Monochiralities Caused by Sexuality
A. Klemm 		978
Mean Amplitudes of Vibration of Chlorosyl Fluoride, FClO
E. J. Baran 		979
Does the Moon Pull à la Newton or à la Einstein or in a Third Way?
O. E. Rössler, D. Fröhlich, N. Kleiner, and J. Parisi 		981
Erratum
FP-LAPW Study of the EFG at Impurity Sites in Oxides: Cd in Rutile TiO2, Z. Naturforsch. 55a, 267 (2000)
L. A. Errico, G. Fabricius, and M. Rentería 		983