Stable divalent heteroleptic species ArO(X)M [Ar=2,4,6-tris(dimethylaminomethyl)phenyl, M=Ge, Sn, Pb]

被引：17

作者：

Barrau, J ^{[1
]}

Rima, G ^{[1
]}

El-Amraoui, T ^{[1
]}

机构：

[1] Univ Toulouse 3, CNRS, UPRES A 5069, F-31062 Toulouse, France

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1998年 / 561卷 / 1-2期

关键词：

heteroleptic sepcies; germylenes; stannylenes; plumbylenes;

D O I：

10.1016/S0022-328X(98)00552-X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The new stable divalent germanium, tin and lead heteroleptic species ArO(X)M [Ar = 2,4,6-[Me2NCH2](3) C6H2; X = Cl, M = Ge (1), Sn (2); X = N(SiMe3)(2), M = Ge (3), Sn (4), Pb (5)] were obtained by ligand redistribution reactions between (ArO)(2)M and MCl2 or [(Me3Si)(2)N](2)M, respectively. The coordination behaviour of the o-dimethylamino side chains of the ArO ligand was studied by NMR spectroscopy. 1-4 show the temperature dependence of their NMR spectra. 1 and 2 exhibit a NMN dynamic 'flip-flop' coordination of the o-dimethylamino groups to the metal, while a rigid N --> M <-- N coordination of the two o-dimethylamino groups of the ArO ligand which can be lifted at higher temperatures (56 degrees C for 3, Delta G(not equal) = 68.55 kJ mol(-1)) is observed for 3 and 4. The chemistry of 1-5 is illustrated through their reactions with quinones. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：167 / 174

页数：8

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