Isomerism in tetrahedral rhenium cluster complexes [Re4Q4(PMe2Ph)4X8]·nCH2Cl2 (Q = Se, X = Br; Q = Te, X = Cl, Br)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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Isomerism in tetrahedral rhenium cluster complexes [Re₄Q₄(PMe₂Ph)₄X₈]·nCH₂Cl₂ (Q = Se, X = Br; Q = Te, X = Cl, Br)

Authors:	Olga A Efremova Yuri V Mironov Konstantin A Brylev Vladimir E Fedorov Hans-Jürgen Pietzsch Holger Stephan

Institution:	^aNikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Acad. Lavrentiev Prosp., 630090 Novosibirsk, Russia;^bInstitut für Radiopharmazie, Forschungszentrum Dresden-Rossendorf, PF 510119, 01314 Dresden, Germany

Abstract:	Three new tetrahedral rhenium cluster compounds Re₄Se₄(PMe₂Ph)₄Br₈]·1.5CH₂Cl₂ (1), Re₄Te₄(PMe₂Ph)₄Br₈]·CH₂Cl₂ (2), and Re₄Te₄(PMe₂Ph)₄Cl₈]·CH₂Cl₂ (3) have been synthesized by the reaction of the corresponding precursor chalcohalide complexes Re₄Q₄(TeX₂)₄X₈] (X = Br, Q = Se (for 1), Te (for 2); X = Cl, Q = Te (for 3)) with dimethylphenylphosphine in CH₂Cl₂. All compounds have been characterized by X-ray single-crystal diffraction and elemental analyses, IR and ³¹P NMR spectroscopy. ³¹P NMR spectroscopy indicates the formation of isomers in solution, confirmed by single-crystal X-ray analysis.

Keywords:	Rhenium tetrahedral cluster complexes Synthesis Crystal structure Isomerism Organic ligands
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