N,N′-Unsubstituted amidinato metallacycle complexes of Group 13 metal alkyls:: the crystal structure of trimeric [{Me2Al(μ-HNCPhNH)}3]

被引:10
作者
Barker, J
Aris, DR
Blacker, NC
Errington, W
Phillips, PR
Wallbridge, MGH [1 ]
机构
[1] Univ Warwick, Dept Chem, Coventry CV4 7AL, W Midlands, England
[2] Associated Octel Co Ltd, Dept Chem, S Wirral L65 3HF, England
基金
英国工程与自然科学研究理事会;
关键词
Group; 13; amidinato; structure; trimer; metallacycle;
D O I
10.1016/S0022-328X(99)00253-3
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The amidinato complexes [Me2ML] (L = HNCPhNH, M = Al, Ga, In; L = (HNCBuNH)-N-t, M = Ga) result from the reaction of the trialkylmetal with an equimolar amount of the amidine. MS data indicate that the complexes exist as dimers or trimers in the gas phase. X-ray crystallographic studies on [(Me2Al(mu-KNCPhNH)}(3)] (1) reveal a novel trimeric structure in the solid state, with bridging benzamidinato ligands, and a 12-membered metallacycle. Reaction of InMe3 with two moles of benzamidine yields a cyclic imidoylamidinato derivative with a six-membered [InNCNCN] ring. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:138 / 144
页数:7
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