The first octahedral cluster complexes with terminal formate ligands: Synthesis, structure, and properties of K4[Re6S 8(HCOO)6] and Cs4[Re6S 8(HCOO)6]

Konstantin A. Brylev, Yuri V. Mironov, Svetlana G. Kozlova, Vladimir E. Fedorov, Sung Jin Kim, Hans Jürgen Pietzsch, Holger Stephan, Akitaka Ito, Shoji Ishizaka, Noboru Kitamura

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Abstract

The hexarhenium anionic cluster complex with terminal formate ligands [Re6S8(HCOO)6]4- was obtained by the room-temperature reaction between [Re6S8(OH) 6]4- and formic acid in an aqueous solution. The cluster was crystallized as a potassium or cesium salt and characterized by X-ray single-crystal diffraction and elemental analyses, IR, 1H NMR, UV/vis, and luminescence spectroscopies. In particular, the emission quantum yield of the potassium salt of the Re6 cluster anion in the solid phase was determined for the first time. The electronic structures of [Re 6S8(HCOO)6]4- and [Re 6S8(OH)6]4- were also elucidated by DFT calculations.

Original languageEnglish
Pages (from-to)2309-2315
Number of pages7
JournalInorganic Chemistry
Volume48
Issue number5
DOIs
StatePublished - 2 Mar 2009

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