Tantalum complexes with all nitrogen coordination sphere: mixed amido-, imido-, guanidinato complexes of tantalum and their thermal behaviour

被引：41

作者：

Baunemann, A ^{[1
]}

Rische, D ^{[1
]}

Milanov, A ^{[1
]}

Kim, Y ^{[1
]}

Winter, M ^{[1
]}

Gemel, C ^{[1
]}

Fischer, RA ^{[1
]}

机构：

[1] Ruhr Univ Bochum, Lehrstuhl Anorgan Chem Organomet & Mat Chem 2, D-4630 Bochum, Germany

来源：

DALTON TRANSACTIONS | 2005年 / 18期

关键词：

D O I：

10.1039/b503988f

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Novel mixed amido-/imido-/guanidinato-complexes of tantalum are reported. The complexes were synthesised by insertion reactions of carbodiimides of the type C(NR)(2) (R = iso-propyl (i-Pr)) into the M-N bonds of tantalum mixed amido/imido complexes. Three representative complexes were synthesised and fully characterised by H-1-NMR, C-13-NMR, CHN-analysis and mass spectroscopy. The crystal structure of the complex [Ta(NMe2){(i-Pr -N)(2)C(NMe2)}(2)(N-t-Bu)] (1) ( Me = methyl, t-Bu = tert-butyl) is presented and discussed. The complexes are solids that can be quantitatively sublimed at moderate temperatures ( 120 - 130 degrees C) without any sign of decomposition. The thermal properties of the new compounds were studied (TGA) and preliminary MOCVD-experiments were performed. TaN films were deposited and characterised by XRD and XPS.

引用

页码：3051 / 3055

页数：5

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