Oxozirconium methacrylate clusters: Zr-6(OH)(4)O-4(OMc)(12) and Zr4O2(OMc)(12) (OMc = methacrylate)

被引：195

作者：

Kickelbick, G

Schubert, U

机构：

[1] Institut für Anorganische Chemie, Technische Universität Wien, A-1060 Wien

来源：

CHEMISCHE BERICHTE-RECUEIL | 1997年 / 130卷 / 04期

关键词：

clusters; zirconium; metal alkoxides; sol-gel processes; carboxylato complexes; oxo complexes;

D O I：

10.1002/cber.19971300406

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The crystalline oxozirconium methacrylate clusters Zr-6(OH)(4)O-4(OMc)(12) and Zr4O2(OMc)(12) were obtained by reaction of Zr(OnPr)(4) with an excess of methacrylic acid and analysed by X-ray diffraction. The oxide and hydroxide groups are in a mu(3)-bridging mode in both structures, and the methacrylate ligands are chelating or bridging. The zirconium atoms in Zr-6(OH)(4)O-4(OMc)(12) form an octahedron, the cluster having crystallographic C-3v symmetry. Each metal atom is square-antiprismatically coordinated by eight oxygen atoms. In Zr4O2(OMc)(12), the zirconium atoms have a distorted butterfly arrangement; their coordination geometry is square-antiprismatic or capped octahedral.

引用

页码：473 / 477

页数：5

共 14 条

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