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Bis(tetraphenylphosphonium) (μ‐tetrathiotungstenio‐κ4S,S′:S′′:S′′′)bis[(cyano‐κC)cuprate](2–) acetonitrile solvate monohydrate |
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| Authors: | Shan‐Bao Qiao Chang‐Mei Jiao Qing‐Feng Xu Yong Zhang Bao‐Long Li Jian‐Ping Lang |
| Abstract: | The reaction of CuCN and KCN with (NH4)2[WS4] followed by cation exchange with PPh4Br produced the title compound, (C24H20P)2[Cu2WS4(CN)2]·CH3CN·H2O or (PPh4)2[(NC)Cu(μ‐S)2W(μ‐S)2Cu(CN)]·MeCN·H2O. In the structure of the dianion, [(NC)Cu(μ‐S)2W(μ‐S)2Cu(CN)]2−, the WS4 moiety acts as a bidentate ligand that binds two CuCN groups, thus forming a slightly bent WCu2 core with approximate D2d symmetry. The W—Cu distances are in the range 2.6463 (6)–2.6545 (6) Å. |
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