issue contents

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296

February 1996 issue

Highlighted illustration

Cover illustration: A 5,18:9,14-Di-o-benzeno-6,17:7,16:8,15-trimethanobenzo[1'',2'':3,4;4'',5'':3',4']dicyclobuta[1,2-b:1',2'-b']dianthracene Derivative, see Parvez pages 444-447. Displacement ellipsoids are plotted at the 50% probability level.

inorganic compounds


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Rb2[UO2Cl4].2H2O crystallizes in space group P1; the anion approximates to D4h (4/mmm) symmetry, with a U—O distance of 1.751(9)Å and U—Cl distances of 2.644(3) and 2.650(4)Å. The compound is confirmed to be the dihydrate; the degree of hydration had been controversial.

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The structure of Re6Te4Cl10 contains two independent Re6 octahedral clusters, each with a crystallographic center of symmetry. The Re atoms are coordinated by four μ3-Te atoms and four μ3-Cl atoms that are equally distributed over the faces of the metal polyhedron; the remaining six Cl atoms are terminal ligands coordinated to the apices of the Re6 octahedron.

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The structure of K2Mn(VO3)4 is composed of MnO6 octahedra and VO4 tetrahedra. Parallel zigzag polyvanadate (VO3)nn- chains of corner-sharing VO4 tetrahedra are cross-linked by seperate MnO6 octahedra to form a three-dimensional framework, the cavities of which are occupied by K+ ions.

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The structure of K2Mn3(OH)2(VO4)2 consists of [Mn3(OH)2(VO4)2]n2n- layers built up from CdI2-like planes of MnO4-(OH)2 octahedra with 1/4 Mn vacancies, to which VO4 tetrahedra are linked on both sides via three vertices; the fourth vertex points into the interlayer space where the K+ ions are situated.

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The Sn6O4(OH)4 clusters which form the structure pack in a pseudo-body-centered fashion. The Sn atoms have distorted tetragonal pyramidal coordination geometry; each Sn atom is coordinated to two bridging O atoms and two bridging hydroxy O atoms.

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The structure of sodium hexanitroruthenate(II) monohydrate is composed of [Ru(NO2)6]4− complex anions, Na+ cations and water molecules. The Ru atoms have nearly ideal octahedral coordination geometry.

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The structure of P2I4 was determined at 120K. It is composed of isolated P2I4 molecules, each of which lies on a crystallographic symmetry centre. There are no apparent intermolecular contacts between the molecules.

metal-organic compounds




























organic compounds



















































addenda and errata


Acta Cryst. (1996). C52, 490
doi: 10.1107/S0108270196099775

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