Three- and four-coordinate copper(I) halide complexes of 2-(diphenylphosphano)benzaldehyde: Dimerization induced by thione-S ligation |
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| Authors: | M Mamais PJ Cox P Aslanidis |
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| Institution: | 1. Aristotle University of Thessaloniki, Faculty of Chemistry, Inorganic Chemistry Laboratory, P.O. Box 135, GR-541 24 Thessaloniki, Greece;2. School of Pharmacy, The Robert Gordon University, Schoolhill, Aberdeen AB10 1FR, Scotland, UK |
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| Abstract: | Reactions of copper(I) halides with 2-(diphenylphosphano)benzaldehyde (PCHO) in 1:2 molar ratio afforded mononuclear complexes of the type CuX(PCHO)2], whereas treatment of these compounds with equimolar amounts of pyridine-2-thione or pyrimidine-2-thione gave rise to the formation of mixed-ligand dimers of the formula CuX(PCHO)(thione)]2. The molecular structures of CuCl(PCHO)2], CuBr(PCHO)2] and CuCl(PCHO)(pymtH)]2 have been established by single-crystal X-ray diffraction. The two homoleptic complexes feature a trigonal copper(I) centre with the phosphane acting as a monodentate ligand via the P atom. In the structure of the dimeric mixed-ligand complex each of the two metal centres exhibit a distorted tetrahedral environment with the thione-S atoms acting in a doubly bridging mode. |
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| Keywords: | Copper(I) halide complexes 2-(Diphenylphosphano)benzaldehyde Heterocyclic thiones Structures |
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