Bimetallic Dihydrobis(methimazolyl)borate Coordination: Molecular Structure [Mo<sub>2</sub>Au{μ<sub>2</sub>-H<sub>2</sub>B(mt)<sub>2</sub>}(PPh<sub>3</sub>)(CO)<sub>7</sub>] (mt = methimazolyl)
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The sequential treatment of Na[H2B(mt)2] (mt = methimazolyl) with [Mo(pip)2(CO)4] (pip = piperidine), [Mo(CO)3(L)3] (L = NCMe, L3 = η6-C7H8) and [AuCl(PPh3)] provides the diheterotrimetallic complex [Mo2Au{μ-H2B(mt)2}(CO)7(PPh3)] in which each thione group of the H2B(mt)2 ligand bridges two molybdenum centers, one of which is also involved in a 3-center, 2-electron B−H−Mo interaction. This complex is also obtained directly from [Mo(CO)3(η6-C7H8)] and [Au(PPh3){H2B(mt)2}] while the triheterotrimetallic species [MoWAu{μ-H2B(mt)2}(CO)7(PPh3)] results from Na[H2B(mt)2], [W(CO)3(NCMe)3], [Mo(pip)2(CO)4], and [AuCl(PPh3)].
创建时间：
2009-02-23
