Coordination polymers with chelidonate (4-oxo-4H-pyran-2,6-dicarboxylate) anions and dmso: [Zn(chel)(dmso)2] and linkage isomers of [Co(chel)(dmso)(OH2)3]•H2O

被引:4
作者
Belen Lago, Ana [1 ]
Carballo, Rosa [1 ]
Fernandez-Hermida, Nuria [1 ]
Rodriguez-Hermida, Sabina [1 ]
Vazquez-Lopez, Ezequiel M. [1 ]
机构
[1] Univ Vigo, Fac Quim, Dept Quim Inorgan, E-36310 Vigo, Galicia, Spain
关键词
Coordination polymers; Metallosupramolecular chemistry; Linkage isomerism; Chelidonate ligand; 4-oxo-4H-pyran-2,6-dicarboxylic acid; Crystal structure; CRYSTAL-STRUCTURE; COMPLEXES; ZN(II);
D O I
10.1016/j.molstruc.2011.07.050
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Recrystallization from dmso of the previously prepared compound [Co(chel)(H2O)(4)] (chel = 4-oxo-4H-pyran-2,6-dicarboxylate), led to the new one-dimensional coordination polymers 1a and 1b, which are linkage isomers of formula [Co(chel)(dmso)(OH2)(3)]center dot H2O. Also the recrystallization from dmso of the previously prepared [Zn(chel)(H2O)(2)] allow the isolation of the one-dimensional coordination polymer [Zn(chel)(dmso)(2)] (2). [Co(chel)(H2O)(4)] was characterized by elemental analysis, IR and electronic spectroscopy, magnetic measurements at room temperature and thermogravimetric analysis. X-ray single crystal diffraction of 1a, 1b and 2 showed the coordinative behavior of the chelidonate ligand in each compound as well as the different participation of this ligand in the corresponding metallosupramolecular organization. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:121 / 128
页数:8
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