A Two-Coordinate Manganese(0) Complex with an Unsupported Mn鈥揗g Bond: Allowing Access to Low Coordinate Homo- and Heterobimetallic Compounds

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• 作者：Jamie Hicks ; Chad E. Hoyer ; Boujemaa Moubaraki ; Giovanni Li Manni ; Emma Carter ; Damien M. Murphy ; Keith S. Murray ; Laura Gagliardi ; Cameron Jones
• 刊名：Journal of the American Chemical Society
• 出版年：2014
• 出版时间：April 9, 2014
• 年：2014
• 卷：136
• 期：14
• 页码：5283-5286
• 全文大小：255K
• 年卷期：v.136,no.14(April 9, 2014)
• ISSN：1520-5126

文摘

This study details the synthesis and characterization of an unprecedented two-coordinate, high-spin manganese(0) complex that incorporates an unsupported Mn鈥揗g bond, viz. L^{鈥?/sup>MnMg(MesNacnac) (L鈥?/sup> = 鈭扤(Ar鈥?/sup>)(SiPri₃), Ar鈥?/sup> = C₆H₂{C(H)Ph₂}₂Pri-2,6,4; MesNacnac = [(MesNCMe)₂CH]鈭?/sup>; Mes = mesityl). This compound has been utilized as an 鈥渋norganic Grignard reagent鈥?in the preparation of the first two-coordinate manganese(I) dimer, L鈥?/sup>MnMnL* (L* = 鈭扤(Ar*)(SiMe₃), Ar* = C₆H₂{C(H)Ph₂}₂Me-2,6,4), and the related mixed valence, bis(amido)-hetereobimetallic complex, MnII(渭-L鈥?/sup>)(渭-L*)Cr0. It is also shown to act as a two-electron reducing agent in reactions with unsaturated substrates.}