Reversible dehydration process in a novel three-dimensional covalent network based on pyrimidine-4,6-dionato bridging ligand

被引：3

作者：

Beobide, Garikoitz ^{[1
]}

Castillo, Oscar ^{[1
]}

Luque, Antonio ^{[1
]}

Garcia-Couceiro, Urko ^{[1
]}

Garcia-Teran, Juan P. ^{[1
]}

Roman, Pascual ^{[1
]}

机构：

[1] Univ Basque Country, Dept Quim Inorgan, Fac Ciencias & Tecnol, E-48080 Bilbao, Spain

来源：

INORGANICA CHIMICA ACTA | 2006年 / 359卷 / 08期

关键词：

pyrimidine bridge; three-dimensional complex; zinc complex; crystal structure; reversible dehydration;

D O I：

10.1016/j.ica.2006.02.004

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The novel metal-organic polymer [Zn(mu-pmdt)(H2O)](n) (1) (pmdt = pyrimidine-4,6-dionate) exhibits an extended three-dimensional network with two crystallographically independent pmdt bridging ligands, one zinc(II) atom and a coordinated water molecule. The Zn(II) atoms are located at the centre of a distorted ZnN(2)OOw tetrahedral chromophore. One of the pmdt ligands acts as tetradentate bridge linking four metal centers, while the other pmdt ligand shows a bidentate coordination mode bridging two metal centers. The compound shows a reversible dehydration process, involving a coordinated water molecule, to lead an amorphous anhydrous phase. This transition has been characterized by thermogravimetric and variable-temperature X-ray powder diffraction techniques. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：2583 / 2588

页数：6

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