Structural characterization of the anions [Rh6(CO)15X]− [X = COEt and CO(OMe)]期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Structural characterization of the anions [Rh6(CO)15X]− [X = COEt and CO(OMe)]

Authors:	Gianfranco Ciani Angelo Sironi Paolo Chini Secondo Martinengo

Institution:	Istituto di Chimica Generale ed Inorganica dell''Università e Centro del C.N.R., Via Venezian 21, 20133-Milano Italy;Centro del C.N.R. di Studio sulla Sintesi e la Struttura dei Composti dei Metalli di Transizione nei Bassi Stati di Ossidazione, Via Venezian 21, 20133-Milano Italy

Abstract:	The anions Rh₆(CO)₁₅X]^?, with X = COEt and CO(OMe), have been studied by single-crystal X-ray diffraction. They contain octahedral rhodium clusters, with mean metalmetal distances of 2.779 and 2.765 », respectively. The carbonyl stereochemistry in the two anions is similar to that of Rh₆(CO)₁₆, with one terminal CO group replaced by the X ligand. The RhC(carbomethoxy) bond distance (1.96(2) ») is significantly shorter than the RhC(acyl) distance (2.06(2) »).

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