issue contents

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296

July 1996 issue

Highlighted illustration

Cover illustration: DL-Valine, L-Cysteine and L-Valyl-L-alanine, see Dalhus & Görbitz, pages 1759-1761, Görbitz & Dalhus, pages 1756-1759, and Görbitz & Gundersen, pages 1764-1767, respectively. Displacement ellipsoids are shown at the 50% probability level.

inorganic compounds


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LiMoP2O7 is isotypic with LiVP2O7 and LiFeP2O7. The structure is built up from MoP2O11 units, each of which comprises an MoO6 octahedron sharing corners with a bidentate P2O7 group. The MoP2O11 units share all corners to form a framework and the Li+ ions are located within the tunnels in this framework.

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PbFe2III(P2O7)2 crystallizes to form two types of metallic column, one containing uniquely FeIII and the other with alternating Pb and Fe atoms. The crystalline structure of BaFe2III(P2O7)2 is characterized by chains of Fe–O octahedra sharing faces with Ba–O decahedra and linked by corner-sharing Fe–O octahedra.

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CuFe2III(P2O7)2 is characterized by isolated centrosymmetric Fe⋯Cu⋯Fe trimers in which FeIII has octahedral geometry and CuII has square-planar geometry.

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The structure of La1.5Ba1.5Cu3O7-x, an ordered oxygen- deficient perovskite, was refined using single-crystal techniques. The anisotropy of the atomic displacements was revealed.

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A phenakite form of LiZnPO4 is reported. The structure is non-centrosymmetric and contains channels parallel to the c axis. The Li, Zn and P atoms are tetrahedrally coordinated and strictly alternate within the columns of tetrahedra along the c axis.

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NiHP5O14 is built of two parallel chains interconnected to form a ribbon. The polyphosphate ribbons are coupled by hydrogen bonds.

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[Ga(H2O)6][Co(OH)6Mo6O18].10H2O forms triclinic crystals and is isostructural with the Cr, Al, Pt and Rb analogs. The structure contains a [Co(OH)6Mo6O18]3− anion and a Ga ion coordinated by six water molecules.

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A second crystal form of the osmium hydrido-carbonyl cluster [Os5(μ-H)2(CO)16] has been obtained.

metal-organic compounds






























organic compounds