Building of lanthanide oxoalkoxides: Synthesis and molecular structure of [Gd-6(mu(4)-O)(mu(3),eta(2)-OR)(4)(mu,eta(2)-OR)(6)(mu,eta(1)-OR)(2)(OR)(4)] (R=C(2)H(4)OMe)

被引：24

作者：

Daniele, S

HubertPfalzgraf, LG

Daran, JC

机构：

[1] UNIV NICE, URA CNRS, LAB CHIM MOLEC, F-06108 NICE, FRANCE

[2] UNIV PARIS 06, CHIM MET TRANSIT LAB, CNRS, F-75230 PARIS 05, FRANCE

来源：

POLYHEDRON | 1996年 / 15卷 / 07期

关键词：

D O I：

10.1016/0277-5387(95)00343-6

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The gadolinium oxoalkoxide [Gd-6(mu(4)-O)(OC(2)H(4)OMe)(16)] was obtained by reaction between gadolinium chips and 2-methoxyethanol or by alcohol interchange reaction from [Gd-5(mu(5)-O)(OPri)(13)]. Its structure results from the self-assembly of two trinuclear units via a mu(4)-oxo ligand having tetrahedral stereochemistry. The gadolinium atoms are seven- and eight-coordinate. Four different coordination modes of the 2-methoxyethoxide ligands are observed, with Gd-O bond lengths ranging from 2.152(9) to 2.674(8) Angstrom, the order of variation being Gd-OR < Gd-mu(4)-O < Gd-mu-OR < Gd-mu(3)-OR < Gd-O(ether).

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页码：1063 / 1070

页数：8

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