issue contents

Journal logoSTRUCTURAL
ISSN: 2053-2296

June 1997 issue

Highlighted illustration

Cover illustration: 6-L-Alanineferrirubin, a Ferrichrome-type Siderophore from the Fungus Aspergillus ochraceous, see Hossain, Jalal and van der Helm, pages 716-718. Displacement ellipsoids are shown at the 50% probability level and H atoms and water molecules have been omitted for clarity.

cif-access (metal-organic compounds)

cif-access (organic compounds)

inorganic compounds

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Rietveld refinement of X-ray powder data shows that these Jahn–Teller spinels contain flattened CuO4 tetrahedra and regular CrO6 or RhO6 octahedra.

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The structure of [CoCl(NH3)5][Ru(NO2)4(OH)(NO)] consists of octahedral [CoCl(NH3)5]2+ and [Ru(NO2)4(OH)(NO)]2− ions held together via a three-dimensional network of inter- molecular O—H⋯O, N-H⋯O and N-H⋯Cl hydrogen bonds.

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The structure of [Co(NH3)6](S2O3)Cl.H2O consists of discrete ions and water molecules of hydration linked by weak hydrogen bonds and interionic contacts.

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Cs2Au2I6 has a distorted perovskite structure, isomorphous with the Wells salt Cs2Au2Cl6. The interatomic distances in Cs2Au2I6 show that the mixed-valence state of the iodide is not the same as that of the chloride.

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Mg(HSeO3)2 contains MgO6 octahedra and strongly hydrogen-bonded dimers of trigonal pyramidal SeO2OH ions in an NaCl-like arrangement.

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SmMo8O14 is isostructural with NdMo8O14. The structure contains cis-edge-sharing bi-face-capped octahedral Mo8 clusters arranged in layers. The O-atom framework is derived from the close-packing layer sequence ABAC. The Sm3+ ions are surrounded by 12 O atoms forming a distorted cuboctahedron.

metal-organic compounds

organic compounds