Group 6 transition metal complexes containing the sigma-bonded 2,4,6-tris(trifluoromethyl)phenyl(''fluoromes'') ligand

被引:28
作者
Dillon, KB
Gibson, VC
Howard, JAK
Redshaw, C
Sequeira, L
Yao, JW
机构
[1] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED,DEPT CHEM,LONDON SW7 2AY,ENGLAND
[2] UNIV DURHAM,DEPT CHEM,SCI LABS,DURHAM DH1 3LE,ENGLAND
基金
英国工程与自然科学研究理事会;
关键词
chromium; molybdenum; mesityl; imido; phosphine; fluorine;
D O I
10.1016/S0022-328X(96)06700-9
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Group 6 transition metal complexes containing the sigma-bonded 2,4,6-tris(trifluoromethyl)phenyl (''fluoromes'' or ''fmes'') ligand are described. Treatment of CrCl2(thf) with two equivalents of Li(fmes) in the presence of PMe(3) affords divalent [Cr(PMe(3))(2)(fmes)(2)] (1), whereas reaction of Cr(N(t)Bu)(2)Cl-2 with two equivalents of Li(fmes) in diethylether gives the hexavalent bis(imido)chromium complex [Cr(N(t)Bu)(2)(fmes)(2)] (2a). The molybdenum analogue, [Mo(N(t)Bu)(2)(fmes)(2)] (2b), is obtained upon treatment of Mo(N(t)Bu)(2)Cl-2(dme) (dme = 1,2-dimethoxyethane) with Li(fmes) under similar conditions.
引用
收藏
页码:179 / 183
页数:5
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