Isomerism in tetrahedral rhenium cluster complexes [Re4Q4(PMe2sub>Ph)4X8]·nCH2Cl2 (Q = Se, X = Br; Q = Te, X = Cl, Br).

Efremova, O. A.; Mironov, Y. V.; Brylev, K. A.; Fedorov, V. E.; Pietzsch, H.-J.; Stephan, Holger

doi:10.1016/j.poly.2009.07.003

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Isomerism in tetrahedral rhenium cluster complexes [Re₄Q₄(PMe_{2sub>Ph)₄X₈]·nCH₂Cl₂ (Q = Se, X = Br; Q = Te, X = Cl, Br).}

Efremova, O. A.; Mironov, Y. V.; Brylev, K. A.; Fedorov, V. E.; Pietzsch, H.-J.; Stephan, H.

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

Polyhedron 28(2009), 2973-2976
DOI: 10.1016/j.poly.2009.07.003
Cited 3 times in Scopus

Permalink: https://www.hzdr.de/publications/Publ-13223