[C7H10N][In3Se5]: A Layered Selenide with Two Indium Coordination Environments

A new layered indium selenide, [C7H10N][In3Se5] (1), has been prepared solvothermally using 3,5-dimethylpyridine as a solvent and structure-directing agent. This material, which was characterized by single-crystal and powder X-ray diffraction, thermogravimetric analysis, UV–vis diffuse-reflectance s...

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Bibliographic Details
Published in:Inorganic chemistry 2012-07, Vol.51 (13), p.7404-7409
Main Authors: Ewing, Sarah J, Powell, Anthony V, Vaqueiro, Paz
Format: Article
Language:English
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Summary:A new layered indium selenide, [C7H10N][In3Se5] (1), has been prepared solvothermally using 3,5-dimethylpyridine as a solvent and structure-directing agent. This material, which was characterized by single-crystal and powder X-ray diffraction, thermogravimetric analysis, UV–vis diffuse-reflectance spectroscopy, IR spectroscopy, and elemental analysis, crystallizes in the monoclinic space group P21/c [a = 3.9990(4) Å, b = 16.7858(15) Å, c = 23.930(2) Å, and β = 94.728(4)°]. The crystal structure of 1 contains anionic layers of stoichiometry [In3Se5]− in which indium atoms with octahedral and tetrahedral coordination coexist. The [In3Se5]− layers are interspaced by monoprotonated 3,5-dimethylpyridinium cations. A closely related material, [C7H10N][In3Se5] (2), was obtained when using 2,6-dimethylpyridine instead of 3,5-dimethylpyridine.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic300861h