Crystal structure of mu(3)-oxo-esakis(mu(2)-acetate)triaquatrichromium(III) 2,6-dihydroxybenzoate dihydrate

被引：12

作者：

Glowiak, T ^{[1
]}

Kozlowski, H ^{[1
]}

Erre, LS ^{[1
]}

Micera, G ^{[1
]}

机构：

[1] UNIV SASSARI,DEPT CHEM,I-07100 SASSARI,ITALY

来源：

INORGANICA CHIMICA ACTA | 1996年 / 248卷 / 01期

关键词：

chromium complexes; carboxylate complexes; trinuclear complexes; 2,6-dihydroxybenzoic acid; crystal structures;

D O I：

10.1016/0020-1693(95)04990-8

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The compound [Cr-2(mu(2)-CH3COO)(6)(mu(3)-O)(H2O)(3)]DHB . 2H(2)O (DHB = 2,6-dihydroxybenzoate(-1)), as characterized by single crystal X-ray analysis and spectroscopy, is described. The compound crystallizes in the monoclinic space group Cc with a = 14.122(3), b = 15.137(4), c = 14.952(3) Angstrom, beta = 99.70(3)degrees, Z = 4. The structure of the complex consists of the trimetallic cage common to 'basic' acetates of Cr(III), Fe(III) and Rh(III), where three metal ions lie at the comers of a nearly equilateral triangle of side similar to 3.3 Angstrom, the center being occupied by a triply-bridging oxygen. The chromium coordination is compared with those found in related complexes. The DHB anion is anchored to the trichromium moiety through bonding between the carboxylate group and a metal-bound water molecule.

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页码：99 / 102

页数：4

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