Reactions of coordinated alcohol as a route to mixed-metal La-Zn alkoxides:: molecular structure of LaZn3(μ-OBut)6[N(SiMe3)2]3

被引：12
|
作者：
Daniele, S
Hubert-Pfalzgraf, LG
Vaissermann, J
机构：
[1] Univ Nice, Lab Chim Mol, URA CNRS, F-06108 Nice 2, France
[2] Univ Paris 06, Chim Met Transit Lab, CNRS URA, F-75230 Paris 05, France
来源：
POLYHEDRON | 1998年 / 17卷 / 23-24期
关键词：
mixed-metal alkoxides; zinc; lanthanum; sol-gel; MOCVD; amides;
D O I：
10.1016/S0277-5387(98)00235-6
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The reactions between La-3(OBut)(9)(HOBut)(2) and Zn[N(SiMe3)(2)](2) have been investigated as a means to access to La-Zn species. A volatile complex LaZn3(mu-OBut)(6)[N(SiMe3)(2)](3) (1) was obtained at room temperature together with La4Zn2O(OBut)(13)[N(SiMe3)(2)] (2) and [La4O(OBut)(10)](2) (3). The reaction was more selective under reflux although retention of the Zn-N(SiMe3)(2) bond was still observed giving La4Zn2(OBut)(15)[N(SiMe3)(2)] (4). No La-Zn species were obtained if the La-3 solvate was refluxed with either Zn(OBut)[N(SiMe3)(2)] or [Zn(OBut)(2)](m); La-5(mu(5)-O)(OBut)(13) was isolated in the latter case. The various compounds were characterized by elemental analysis, FTlR,H-1 NMR. 1 was also characterized by single crystal X-ray diffraction; its molecular structure is based on a central 6-coordinate lanthanum with 3-coordinate zinc atoms. (C) 1998 Elsevier Science Ltd. All rights reserved.
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收藏
页码：4249 / 4256
页数：8
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