Synthesis and Structural Characterization of Cationic 5-Hydroxy-1,3-diketonate Stabilized Dinuclear Complexes and Tetranuclear Lanthanoid Clusters

被引：12

作者：

Andrews, Philip C. ^{[1
]}

Gee, William J. ^{[1
]}

Junk, Peter C. ^{[1
]}

MacLellan, Jonathan G. ^{[1
]}

机构：

[1] Monash Univ, Sch Chem, Clayton, Vic 3800, Australia

来源：

INORGANIC CHEMISTRY | 2010年 / 49卷 / 11期

基金：

澳大利亚研究理事会;

关键词：

METAL-COMPLEXES; COORDINATION; YTTRIUM; CHEMISTRY; SERIES; IONS;

D O I：

10.1021/ic1001732

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

5-Hydroxy-1,3-diketonate ligands have been found to stabilize dimeric complexes and tetrameric lanthanoid clusters dependent on the degree of steric bulk provided by the presence or absence of a methoxy group. Treatment of (R/S,Z)-1'- hydroxy-3-(hydroxy(phenyl)methylene)bi(cyclopentan)-2-one (Hhpb) and the p-methoxyphenyl derivative (Hhmb) with [LnCl(2)(H2O)(6)]Cl yields clusters of composition [Ln(4)(Cl)(2)(O)(hpb)(6)]Cl-2 (Ln = Nd (1), Ho (2), Tb (3), and Er (4)) and [Ln(2)(hmb)(5)]Cl (Ln = La (5), Nd (6), Tb (7), Dy (8), and Er (9)). Single crystal X-ray analysis of the tetranuclear cluster has revealed the lanthanoid core to be in a tetrahedral arrangement around a central mu(4)-oxygen, bridged by symmetrical chlorides and shrouded in six bridging hpb ligands. The dimeric complexes are stabilized by three bridging and two terminal hmb ligands. In each instance, double or single cationic charges respectively are balanced by chloride anions.

引用

页码：5016 / 5024

页数：9

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