1H-Pyridine-2-thione (C2H4NSH) reacts with [Cu(MeCN)4]PF6 in acetone to give an orange compound [Cu6(C5H4NS)6], which crystallized in the monoclinic space group P21/n, a= 12.257(2), b= 16.029(2), c= 9.581 (1)Å, β= 108.859(9)°, and Z= 2. The single-crystal X-ray structure of the complex shows a distorted octahedral core of six copper atoms, with metal–metal distances ranging from 2.795(1) to 3.160(1)Å. Each copper has a trigonal geometry constituted by the two thiolate sulphur and one pyridine nitrogen atoms, as distinct from the common copper–thione sulphur co-ordination in other copper(I)–C5H4NSH complexes. The copper atom deviates highly from the S2N co-ordination plane. The reaction solution was examined by 1H n.m.r. spectroscopy, which reveals the formation of several low-molecular-weight species in the early stages of the reaction.
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Journal of the Chemical Society, Dalton Transactions
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