Synthesis of tantalum fluoride complexes supported by bis(trimethylsilyl)benzamidinate ligands.: X-ray structures of [PhC(NSiMe3)2]2TaF3 and [PhC(NSiMe3)2]2TaFPh2

被引：9

作者：

Mullins, SM

Hagadorn, JR

Bergman, RG ^{[1
]}

Arnold, J

机构：

[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2000年 / 607卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

tantalum; amidinate complexes; metal fluoride complexes;

D O I：

10.1016/S0022-328X(00)00376-4

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of [PhC(NSiMe3)(2)]Li(TMEDA) with TaF5 yields complex 1, [PhC(NSiMe3)(2)](2)TaF3, in 40% isolated yield. The solid-state structure of 1 shows a pentagonal, bipyramidal coordination geometry. Variable temperature F-19-NMR experiments reveal one singlet at an ambient temperature; decoalescence to two singlets (1:2 integration) is observed at - 20 degrees C. Complex 1 reacts with Me2Mg to produce [PhC(NSiMe3)(2)](2)TaMe3 (2). The reaction of 1 with Ph2Mg yields [PhC(NSiMe3)(2)](2)TaF2Ph (3) and [PhC(NSiMe3)(2)](2)TaFPh2 (4). Characterization of 4 by X-ray crystallography shows a ligand arrangement similar to that of 1. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：227 / 232

页数：6

共 38 条

[1]

Andersen R.A., 1979, Inorg. Synth, V19, P262

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