issue contents

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296

August 2017 issue

Highlighted illustration

Cover illustration: Solid-state geometries of [([eta]6-C6H5)(2-F-C6H4)]Cr(CO)3 and [([eta]6-C6H5)(4-F-C6H4)]Cr(CO)3 indicate exclusive coordination of the metal center to the more electron-rich arene ring. Unlike the structures of the free ligands, the chromium complexes exhibit no crystallographic symmetry and no positional disorder. See Guzei, Spencer, Buechel, Kaufmann & Czerwinski [Acta Cryst. (2017), C73, 638-644].

research papers


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Novel uranyl bimetallic one-dimensional coordination polymers containing cobalt and manganese have been synthesized and structurally analyzed via X-ray diffraction techniques. The local and global structures of the two compounds have been compared and their photoluminescence properties have been analyzed.

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Two saccharinate salts of pyridinium with –CH2OCH2CF2CF2H and –CH2OCH2CF2CF3 meta substituents were investigated crystallographically in order to compare their fluorine-related weak inter­actions in the solid state. Both salts demonstrate a stable synthon formed by the pyridinium cation and the saccharinate anion, in which a seven-membered ring reveals a double hydrogen-bonding pattern.

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The new sheet structures of Al(H2AsO4)(H2As2O7) and isotypic Ga(H2AsO4)(H2As2O7) and the new framework structure of In2(H2AsO4)2(H2As2O7)2 represent the first compounds containing both H2AsO4 and H2As2O72− groups.

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The synthesis and crystal structure of a novel Schiff base compound obtained from salicyl­aldehyde and di­thio­oxamide has been investigated. A one-dimensional chain is formed along the b axis via double inter­molecular C—H⋯S hydrogen bonds. DFT calculations have allowed the molecular hyperpolarizability to be evaluated.

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Copper(II) complexes with N-(6-methyl­pyridin-2-yl)acetamide ligands exhibit different five-coordinate environments around the CuII ion, depending on the nature of the counter-ions.

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A crystallographic, spectroscopic and computational study of [CoIICl(TMC)]+ (TMC is 1,4,8,11-tetra­methyl-1,4,8,11-tetra­aza­cyclo­tetra­deca­ne) fills a gap in the series of crystallographically characterized [MIICl(TMC)]+ complexes (M = Mn, Fe, Ni, Zn). The unusually large effective magnetic moment of [CoIICl(TMC)]+ is consistent with large spin orbit coupling inter­actions.

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The preparation and structures of three simple salts of the bis­[(R)-mandelato]borate anion that could be used for the resolution of racemic cations by metathesis crystallization are reported.

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Structure elucidation of a single crystal of a new phosphine–phospho­ramidite (PPA) revealed unique features which might have a significant effect on the excellent chemical stability of this type of mol­ecule. The conformation of the molecule provides an optimal chelating structure.

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Solid-state geometries of [(η6-C6H5)(2-F-C6H4)]Cr(CO)3 and [(η6-C6H5)(4-F-C6H4)]Cr(CO)3 indicate exclusive coordination of the metal center to the more electron-rich arene ring. Unlike the structures of the free ligands, the chromium complexes exhibit no crystallographic symmetry and no positional disorder.

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Two new isostructural one-dimensional coordination polymers based on 2-[(1H-imidazol-1-yl)meth­yl]-6-methyl-1H-benzimidazole (immbb) and benzene-1,4-di­carboxyl­ate have been prepared and structurally characterized. In each of the polymers, CoII or NiII ions are linked by bridging benzene-1,4-di­carboxyl­ate ligands to generate a one-dimensional chain, with immb ligands pendant on opposite sides of the chain.

Special and virtual issues

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Acta Crystallographica Section C has recently published special issues on

NMR Crystallography (March 2017)

Scorpionates: a golden anniversary (November 2016)

Full details are available on the special issues page.

The latest virtual issue features Coordination polymers, with an introduction by Len Barbour.

What are the 'most read' articles from the recent special issues?

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