Acta Crystallographica Section B

Structural Science

Volume 50, Part 6 (December 1994)

Cover illustration: Neutron diffraction structure of -cyclodextrin cyclopentanone hydrate at 20 K, see Le Bas & Mason, pages 717-724.

• research papers
• short communications
• books received
• international union of crystallography

research papers

Acta Cryst. (1994). B50, 631-636    [doi:10.1107/S0108768194003873]

On the structure and properties of the layered lanthanide (Ln) barium copper oxyborates, LnBaCuO₂BO₃

R. Norrestam, M. Kritikos and A. Sjödin

Acta Cryst. (1994). B50, 636-643    [doi:10.1107/S0108768194004052]

The superstructure of domain-twinned '-Cu₆Sn₅

A.-K. Larsson, L. Stenberg and S. Lidin

Acta Cryst. (1994). B50, 644-648    [doi:10.1107/S0108768194004933]

Lattice constants and thermal expansion of H₂O and D₂O ice Ih between 10 and 265 K

K. Röttger, A. Endriss, J. Ihringer, S. Doyle and W. F. Kuhs

Acta Cryst. (1994). B50, 649-655    [doi:10.1107/S0108768194005161]

The low-temperature structure of NbTe₄

J. Kusz and H. Böhm

Acta Cryst. (1994). B50, 655-662    [doi:10.1107/S0108768194006300]

Structure and non-linear optical properties of KTiOAsO₄

S. C. Mayo, P. A. Thomas, S. J. Teat, G. M. Loiacono and D. N. Loiacono

Acta Cryst. (1994). B50, 663-672    [doi:10.1107/S0108768194006257]

Oxygen-induced structural change of the tetragonal phase around the tetragonal-cubic phase boundary in ZrO₂-YO_1.5 solid solutions

M. Yashima, S. Sasaki, M. Kakihana, Y. Yamaguchi, H. Arashi and M. Yoshimura

Acta Cryst. (1994). B50, 673-676    [doi:10.1107/S0108768194007470]

The structure of aurichalcite, (Cu,Zn)₅(OH)₆(CO₃)₂, determined from a microcrystal

M. M. Harding, B. M. Kariuki, R. Cernik and G. Cressey

Acta Cryst. (1994). B50, 676-684    [doi:10.1107/S0108768194003411]

Crystal structure of the commensurately modulated phase of PAMC

P. Harris, F. K. Larsen, B. Lebech and N. Achiwa

Acta Cryst. (1994). B50, 684-694    [doi:10.1107/S0108768194005203]

Intermolecular interactions of sulfonated azo dyes: crystal structures of the diammonium, dilithium, magnesium and calcium salts of 7-hydroxy-8-(phenylazo)-1,3-naphthalenedisulfonic acid(Orange G)

W. H. Ojala, L. K. Lu, K. E. Albers, W. B. Gleason, T. I. Richardson, R. E. Lovrien and E. A. Sudbeck

Acta Cryst. (1994). B50, 695-703    [doi:10.1107/S0108768194003599]

Structure of suberic acid at 18.4, 75 and 123 K from neutron diffraction data

Q. Gao, H.-P. Weber, B. M. Craven and R. K. McMullan

Acta Cryst. (1994). B50, 703-707    [doi:10.1107/S0108768194002600]

Dimethylaminobenzonitrile: structure of the lower-temperature solid phase. Comparison with the structure of the higher-temperature phase and correlation with optical spectroscopic properties

G. B. Jameson, B. M. Sheikh-Ali and R. G. Weiss

Acta Cryst. (1994). B50, 708-716    [doi:10.1107/S0108768194004179]

X-ray investigation of glyoxime derivatives. V. Two isomers of 2-(thienyl)glyoxime. A database study of the geometry and hydrogen bonding of the oxime group

L. Chertanova, C. Pascard and A. Sheremetev

Acta Cryst. (1994). B50, 717-724    [doi:10.1107/S0108768194003976]

Neutron diffraction structure of -cyclodextrin cyclopentanone hydrate at 20 K: host-guest interactive disorder

G. Le Bas and S. A. Mason

Acta Cryst. (1994). B50, 724-730    [doi:10.1107/S0108768194006877]

Crystal studies of musk compounds. XI. Molecular structures of musk moskene and two homologues

D. J. A. De Ridder and H. Schenk

Acta Cryst. (1994). B50, 730-737    [doi:10.1107/S0108768194006889]

Crystal studies of musk compounds. XII. Molecular structures of three nitrotetralin-related compounds

D. J. A. De Ridder, J. Fraanje, K. Goubitz and H. Schenk

Acta Cryst. (1994). B50, 737-741    [doi:10.1107/S0108768194002843]

The charge-density distribution in hexamethylenetetramine at 120 K

S. P. Kampermann, J. R. Ruble and B. M. Craven

Acta Cryst. (1994). B50, 741-746    [doi:10.1107/S0108768194004027]

Electrocrystallization, crystal structure and physical properties of hexaperylene hexafluorophosphate, (C₂₀H₁₂)₆^.+.PF₆^-

W. F. Kuhs, G. Mattern, W. Brütting, H. Dragan, M. Burggraf, B. Pilawa and E. Dormann

Acta Cryst. (1994). B50, 746-762    [doi:10.1107/S0108768194004180]

The influence of the nitro group on the solid-state structure of 4-nitropyrazoles: the cases of pyrazole, 3,5-dimethylpyrazole, 3,5-di-tert-butylpyrazole and 3,5-diphenylpyrazole. I. Static aspects (crystallography and thermodynamics)

A. L. Llamas-Saiz, C. Foces-Foces, F. H. Cano, P. Jiménez, J. Laynez, W. Meutermans, J. Elguero, H.-H. Limbach and F. Aguilar-Parrilla

Acta Cryst. (1994). B50, 762-771    [doi:10.1107/S0108768194004647]

Structures with identical packing; racemic and partially optically pure 3-(2'-chloro-2'-phenylethyl)-2-thiazolidiniminium p-toluenesulfonate and a comparison of the packing in corresponding racemic and optically active compounds

K. Marthi, S. Larsen, M. Ács, J. Bálint and E. Fogassy

Acta Cryst. (1994). B50, 772-779    [doi:10.1107/S0108768194005938]

Structure of three novel photochromic compounds; X-ray crystallographic and theoretical studies

J. Crano, D. Knowles, P. Kwiatkowski, T. Flood, R. Ross, L. Chiang, J. Lasch, R. Chadha and G. Siuzdak

short communications

Acta Cryst. (1994). B50, 780    [doi:10.1107/S010876819409991X]

Determination of the anharmonicity constant of GaAs by means of the Bijvoet relation of the weak (666) reflection. Erratum

U. Pietsch, K. Paschke and K. Eichhorn

books received

Acta Cryst. (1994). B50, 780    [doi:10.1107/S0108768194099568]

Random, non-random and periodic faulting in crystals by M. Sebastian and P. Krishna

international union of crystallography

Acta Cryst. (1994). B50, 781-782    [doi:10.1107/S0108768194099908]

Prices of IUCr Journals

Acta Cryst. (1994). B50, 783-789

Subject index to volume B50 (1994)

Acta Cryst. (1994). B50, 790-791

Formula index to volume B50 (1994)

Acta Cryst. (1994). B50, 792-797

Author index to volume B50 (1994)

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