Coordination chemistry of mixed pyridine-phenol ligands; Synthesis and crystal structure of [Cu2L2{mu-PhB(OH)O}(2)] [HL=6-(2-hydroxyphenyl)-2,2'-bipyridine], a dinuclear copper(II) complex with phenylboronate bridges

被引：8

作者：

Bardwell, DA ^{[1
]}

Jeffery, JC ^{[1
]}

Ward, MD ^{[1
]}

机构：

[1] UNIV BRISTOL, SCH CHEM, BRISTOL BS8 1TS, AVON, ENGLAND

来源：

POLYHEDRON | 1996年 / 15卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1016/0277-5387(95)00450-5

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction of Cu(BF4)(2) with 6-(2-hydroxyphenyl)-2,2'-bipyridine (HL) followed by precipitation with aqueous NaBPh(4) affords the unexpected product [Cu(2)L(2){mu-PhB(OH)O}(2)] in which the bridging groups-which are the anions of phenylboric acid, PhB(OH)(2)-are derived from decomposition of the [BPh(4)](-) counter-ion. The complex contains two five-coordinate Cu-II centres in an elongated square-pyramidal geometry, with a Cu-2(mu-O)(2) core, and appears to be stabilized by an aromatic pi-pi interaction in which the pendant phenyl ring of each bridging group stacks with one of the pyridyl rings of a ligand L. In solution EPR spectroscopy shows that the dinuclear complex is cleaved to a mononuclear species.

引用

页码：2019 / 2022

页数：4

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