Mononuclear Three-Coordinate Magnesium Complexes of a Highly Sterically Encumbered 尾-Diketiminate Ligand
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- 作者：Merle Arrowsmith ; Brant Maitland ; Gabriele Kociok-K枚hn ; Andreas Stasch ; Cameron Jones ; Michael S. Hill
- 刊名：Inorganic Chemistry
- 出版年：2014
- 出版时间：October 6, 2014
- 年：2014
- 卷：53
- 期：19
- 页码：10543-10552
- 全文大小：574K
- ISSN：1520-510X
文摘
The highly sterically encumbered chelating 尾-diketiminate ligand, [HC{C(Me)N(2,6-CHPh2-4-MeC6H2)}2]鈭?/sup>, ArL鈥?/sup>, has been used to prepare a series of heteroleptic three-coordinate magnesium complexes. Both the bis(imine) and imine-enamine tautomers of the ligand precursor, ArLH, as well as the diethyl ether adduct of the bromide complex [ArLMgBr(OEt2)], the monomeric methyl complex [ArLMgMe], the THF-solvated and unsolvated n-butylmagnesium complexes [ArLMgnBu(THF)] and [ArLMgnBu], and the 1-hexynyl analogue [ArLMgC鈮nBu] have been crystallographically characterized. Both n-butylmagnesium complexes showed remarkable stability in air, both in the solid state and in solution. Single crystals of the highly sensitive magnesium hydride, [ArLMgH], underwent partial hydrolysis by solid-state water diffusion to the isostructural hydroxide compound [ArLMgOH].
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