Preparation and structures of {Li[C(N,tBu)2(HN,tBu)]}2.(THF) and {Li2[C(N,tBu)3]}2, containing the novel anions [C(N,tBu)2(HN,tBu)]- and [C(N,tBu)3]2-

被引:47
作者
Chivers, T [1 ]
Parvez, M [1 ]
Schatte, G [1 ]
机构
[1] Univ Calgary, Dept Chem, Calgary, AB T2N 1N4, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
hetero-trimethylenemethane ligands; C-N-Li cluster; carbodiimides; X-ray structure;
D O I
10.1016/S0022-328X(97)00182-4
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The reaction of tert-butyl carbodiimide with one equivalent of (LiNHBu)-Bu-t in tetrahydrofuran at -78 degrees C produces {Li[C((NBu)-Bu-t)(2)((HNBu)-Bu-t)]}(2) .(THF) (1), which is an eight-membered Li2C2N4 ring; the deprotonation of 1 with two equivalents of n-BuLi in tetrahydrofuran at -78 degrees C and recrystallization of the product from n-pentane yielded the unsolvated dimer {Li-2[C((NBu)-Bu-t)(3)]}(2) (2), which has a distorted cyclic ladder structure. (C) 1998 Elsevier Science S.A.
引用
收藏
页码:213 / 220
页数:8
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