issue contents

Journal logoSTRUCTURAL
ISSN: 2053-2296

August 1995 issue

Highlighted illustration

Cover illustration: Dimethyl 2-Methylcubane-1,4-dicarboxylate and Dimethyl 2,3-Dimethylcubane-1,4-dicarboxylate, see Cristiano, Gable, Lowe & Tsanaktsidis, pages 1658-1661. Displacement ellipsoids are plotted at the 50% probability level.

inorganic compounds

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The structure of PrMo8O14 contains a mixture of cis-edge- sharing and trans bicapped octahedral Mo8 clusters in the ratio 2:1. The oxygen framework derives from a packing of close-packed layers with the sequence ABAC, and the Pr3+ ions are surrounded by twelve O atoms forming a distorted cuboctahedron.

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The structure of σ-Ba2P2O7 contains columns of Ba atoms in sites of eleven- and tenfold coordination and is unlike those of any of the known allotropes of other alkaline earth diphosphates.

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The crystal of [Cr(NH3)6][CuCl5] studied is cubic at high temperature but transforms to a twinned tetragonal phase with three components at 259.2 K. The geometry of the [CuCl5]3− ion changes dramatically from trigonal bipyramidal in the high-temperature phase to deformed square pyramidal in the low-temperature phase.

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The structure of Cu9O2(PO4)4(OH)2 contains five kinds of copper–oxygen polyhedra. One Cu atom lies at a centre of symmetry and has square-planar coordination geometry, the others occupy sites with distorted square-pyramidal coordination geometry.

metal-organic compounds

organic compounds