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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Organoaluminium and -gallium compounds with N,N-diisopropylaminomethyl groups
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Organoaluminium and -gallium compounds with N,N-diisopropylaminomethyl groups

机译:具有N,N-二异丙基氨基甲基的有机铝和-镓化合物

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摘要

The N,N-diisopropylaminomethyl aluminium compound [(Bu2AlCH2NPr2)-Bu-t-Pr-i.LiCl](2) (1) and the gallium compounds Li[(Bu2Ga)-Bu-t((CH2NPr2)-Pr-i)(2)] (2) and [(Bu2GaCH2N)-Bu-t(H)Pr-i(2)]Cl.(Bu3Ga)-Bu-t (3) were prepared by transmetallation of N,N-diisopropylaminomethyllithium (LiCH2NPr2)-Pr-i with di-tert-butylaluminium or -gallium chloride, and characterised by elemental analyses, multinuclear NMR spectroscopy (H-1, C-13, Al-27, Li-7) and IR spectroscopy. The crystal structures have been determined by single crystal X-ray diffraction. Compound 1 aggregates as a centrosymmetric dimer, with two Al-C-N units connected by a frame of two LiCl molecules [Al-Cl 2. 367(1), Cl-Li 2.339(4) and 2. 374(4), Li-N 1.977(4) Angstrom]. Compound 2 is a lithium organogallate with two weak Li...N bonds [1.965(7) and 1.937(7) Angstrom]. Compound 3 contains two different moieties: (Bu3Ga)-Bu-t and a [(Bu2GaCH2N)-Bu-t(H)Pr-i(2)](+) cation, which are bridged by a Cl- anion [Ga-Cl 2.445(1) and 2. 579(1), H...Cl 2.362(3) Angstrom].
机译:N,N-二异丙基氨基甲基铝化合物[(Bu2AlCH2NPr2)-Bu-t-Pr-i.LiCl](2)(1)和镓化合物Li [(Bu2Ga)-Bu-t((CH2NPr2)-Pr-i )(2)](2)和[(Bu2GaCH2N)-Bu-t(H)Pr-i(2)] Cl。(Bu3Ga)-Bu-t(3)通过N,N-二异丙基氨基甲基锂( LiCH2NPr2)-Pr-i与二叔丁基铝或-氯化镓,并通过元素分析,多核NMR光谱(H-1,C-13,Al-27,Li-7)和IR光谱进行表征。晶体结构已经通过单晶X射线衍射确定。化合物1聚集为中心对称的二聚体,其中两个Al-CN单元通过两个LiCl分子的框架连接[Al-Cl 2. 367(1),Cl-Li 2.339(4)和2. 374(4),Li- N 1.977(4)埃]。化合物2是具有两个弱Li ... N键[1.965(7)和1.937(7)埃]的有机没食子酸锂。化合物3包含两个不同的部分:(Bu3Ga)-Bu-t和[(Bu2GaCH2N)-Bu-t(H)Pr-i(2)](+)阳离子,它们被一个Cl-离子[Ga- Cl 2.445(1)和2. 579(1),H ... Cl 2.362(3)埃]。

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