issue contents

Journal logoSTRUCTURAL
ISSN: 2053-2296

July 1997 issue

Highlighted illustration

Cover illustration: 1,4,8,11-Tetrakis(diiodine)-1,4,8,11-tetrathiacyclotetradecane, see Blake, Li, Lippolis and Schröder, pages 886-888. Displacement ellipsoids are shown at the 70% probability level for non-H atoms and H atoms are shown as spheres of arbitrary radii.

cif-access (metal-organic compounds)

inorganic compounds

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The low-temperature polymorph of Ba3Zr2S7 has P42/mnm crystal symmetry and contains buckled corner-sharing ZrS6 octahedra, in contrast to the linear ZrS6 octahedra found in the high-temperature I4/mmm polymorph.

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The determination of the structure of [Be4O(NO3)6] confirms the expectation of a molecular structure similar to that of basic beryllium acetate.

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The pseudo-hexagonal structure of Ca2NaF(SiO4) is derived from that of Ca3SiO5 with fluorine replacing the set of O atoms not bonded in SiO4 isolated tetrahedra.

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A new model of MnSiF6.6H2O is presented which reproduces the `weak' h0l reflections not explained with the `antiphase domain' model by Chevrier [Acta Cryst. (1991), B 47, 224–228]. Good agreement for the `weak' reflections was obtained by assuming a sort of submicroscopic twinning.

metal-organic compounds

organic compounds