학술논문
Reaction of tris[(diphenylphosphino)dimethylsilyl]methane with molybdenum hexacarbonyl and deprotonation to give a salt with a planar carbanion. Crystal structures of (Ph2PMe2Si)3CH and [Li(tmen)2][C(SiMe2PPh2)3], tmen 4;= 4;N,N,N ′,N ′-tetramethylethane-1,2-diamine
Document Type
Article
Author
Source
Journal of the Chemical Society, Dalton Transactions; March 21, 1999, Vol. 1999 Issue: 6 p831-834, 4p
Subject
Language
ISSN
03009246
Abstract
The compound (Ph2PMe2Si)3CH I reacted (i) with [Mo(CO)6] to give cis-[Mo(CO)4{(Ph2PMe2Si)3CH}] 1 in which two phosphine groups are co-ordinated to molybdenum and one is free, and (ii) with LiBu in the presence of N,N,N′,N′-tetramethylethane-1,2-diamine (tmen) to give [Li(tmen)2][C(SiMe2PPh2)3] 2, which contains discrete planar carbanions and no Li–P co-ordination. The crystal structures of compounds I and 2 have been determined and 1 has been characterised spectroscopically.