BIS(ARYLIMIDO) COMPLEXES OF CHROMIUM(VI)

被引：36

作者：

COLES, MP ^{[1
]}

DALBY, CI ^{[1
]}

GIBSON, VC ^{[1
]}

CLEGG, W ^{[1
]}

ELSEGOOD, MRJ ^{[1
]}

机构：

[1] UNIV NEWCASTLE UPON TYNE,DEPT CHEM,NEWCASTLE TYNE NE1 7RU,TYNE & WEAR,ENGLAND

来源：

POLYHEDRON | 1995年 / 14卷 / 17-18期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1016/0277-5387(95)00058-Z

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A synthetic entry into bis(arylimido) chromium(VI) chemistry is described. Cr(NAr)(2)(NHBu(t))Cl (1; Ar= 2,6-(Pr2C6H3)-C-i) may be obtained (1) by treatment of Cr(NBu(t))(2)Cl-2 with two equivalents of 2,6-diisopropylaniline in pentane, or (2) via the reaction of Cr(NBu(t))(2)Cl-2 with two equivalents of LiNHAr in Et(2)O. An X-ray structure determination on 1 reveals a pseudo-tetrahedral coordination geometry with Cr-N distances of 1.643(3) and 1.654(4) Angstrom for the imido groups and 1.813(3) Angstrom for the tert-butylamido ligand; the substituents of the amide are orientated perpendicular to the Cl-Cr-N(amido) plane. Compound 1 is readily converted to Cr(NAr)(2)Cl-2(2) by treatment with excess BCl2 in dichloromethane.

引用

页码：2455 / 2459

页数：5

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