issue contents

Journal logoSTRUCTURAL
ISSN: 2053-2296

January 1998 issue

Highlighted illustration

Cover illustration: Bis[bis(triphenylphosphine)iminium] Di-mu-thio-bis[(pentasulfido)ferrate(III)], see van Hal and Whitmire (1997). Acta Cryst. C53, IUC9700008. Displacement ellipsoids are shown at the 50% probability level and H atoms have been omitted for clarity.

cif-access (metal-organic compounds)

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This compound is used for the transfer of a tricarbonyliron unit to prochiral dienes to generate optically active diene complexes. It is obtained by condensation of ferroceno[1,2]cyclohex-1-en-3-one with benzaldehyde and subsequent treatment with nonacarbonyliron.

cif-access (organic compounds)

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4-Azidobenzenesulfonyl chloride is used as a raw material for the esterification of aliphatic and aromatic mono- and poly- functional alcohols in the preparation of mono-, di- and triazido compounds such as those used in the lithographic structuring of polymers.


Acta Cryst. (1998). C54, 1
doi: 10.1107/S0108270198099867

inorganic compounds

Acta Cryst. (1998). C54, 2-5
doi: 10.1107/S0108270197012687
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Pb2Fe2Ge2O9 is isostructural with melanotekite, Pb2Fe2Si2O9, and is built up of zigzag chains of edge-sharing FeO6 octahedra, linked via Ge2O7 groups and PbII cations. The stereoactivity of the PbII electron lone pairs is revealed by the strongly anisotropic displacement of one O atom.

Acta Cryst. (1998). C54, 5-7
doi: 10.1107/S0108270197010731
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Ga3PO7 was synthesized by high-temperature, high-pressure hydrothermal synthesis. Its structure, isotypic with the iron phosphate Fe3PO7, consists of clusters of three edge-sharing GaO5 trigonal bipyramids linked through PO4 tetrahedra.

Acta Cryst. (1998). C54, 7-9
doi: 10.1107/S010827019701189X
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Na4Co7(PO4)6 is isostructural with Na4Ni7(PO4)6. The structure contains CoO6 and CoO4 polyhedra and PO4 tetrahedra connected by corner and edge sharing to form a three-dimensional network. The Na+ ions occupy tunnels running parallel to the a axis.

Acta Cryst. (1998). C54, 9-11
doi: 10.1107/S0108270197011128
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The determination of the structure of (NH4)3[PMo12O40].- 21H2O shows that the polyanion has a pseudo-Keggin structure.

Acta Cryst. (1998). C54, 11-12
doi: 10.1107/S010827019701072X
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Lanthanum aluminium borate has been found to be isostructural with hexagonal NdAl2.07(B4O10)O0.6. Each La ion is coordinated by six O atoms to form a trigonal prism, while each Al is coordinated by five O atoms to form a pyramid.

metal-organic compounds

organic compounds