SYNTHESIS OF MOLYBDENUM AND TUNGSTEN SILYLIMIDO COMPLEXES - STRUCTURE OF A 5-COORDINATE BIS(SILYLIMIDO) COMPLEX

被引：25

作者：

LICHTENHAN, JD ^{[1
]}

CRITCHLOW, SC ^{[1
]}

DOHERTY, NM ^{[1
]}

机构：

[1] UNIV WASHINGTON,DEPT CHEM,SEATTLE,WA 98195

来源：

INORGANIC CHEMISTRY | 1990年 / 29卷 / 03期

关键词：

D O I：

10.1021/ic00328a019

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Molybdenum(IV) and tungsten(IV) mono(silylimido) compounds, M(NSiMe3)Cl2L3(M = Mo, L = PMe3(1); M = W, L = PMe3(2), PMePh2(3)), have been prepared by the reaction of MC12L4with 1 equiv of trimethylsilyl azide. When M = W and L = PMePh2, the addition of a second equivalent of trimethylsilyl azide produces a tungsten(VI) bis(silylimido) compound, W-(NSiMe3)2Cl2(PMePh2) (4). X-ray structural determination indicates that 4 possesses a five-coordinate trigonal-bipyramidal structure with cis equatorial imido ligands and short W-N bonds (1.70 (3) Å). The factors that influence the production of silylimido vs azido or nitrido compounds in this system are considered, and the synthesis of silylimido complexes is discussed in light of the reactivity of N-Si bonds. © 1990, American Chemical Society. All rights reserved.

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页码：439 / 442

页数：4

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