Hydrothermal synthesis and crystal structures of two novel rare earth coordination polymers based on pyridine-2,6-dicarboxylic acid

被引:28
作者
Duan, LY [1 ]
Li, YG [1 ]
Liu, FC [1 ]
Wang, EB [1 ]
Wang, XL [1 ]
Hu, CW [1 ]
Xu, L [1 ]
机构
[1] NE Normal Univ, Dept Chem, Inst Polyoxometalata Chem, Changchun 130024, Jilin, Peoples R China
基金
中国国家自然科学基金;
关键词
rare earth metal; pyridine-2,6-dicarboxylic acid; coordination polymer;
D O I
10.1016/j.molstruc.2003.11.009
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
Two novel rare earth coordination polymers, [La(pydc)(2)(H2O)][La(pydc)(H2O)(2)](H2O)-H-. (1) and [Sm(pydc)(2)(H2O)][Sm(pydc)(H2O)(2)](H2O)-H-. (2) (pyde = pyridine-2,6-dicarboxylate) were hydrothermally synthesized and characterized by the elemental analyses, IR spectra and TG analyses. Single crystal X-ray diffractions show that 1 and 2 are isostructural compounds. In the compounds of 1 and 2, the ID lanthanide helical chains are connected each other by lanthanide binuclear dimer as building blocks to form a novel 3D covalent framework. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:269 / 274
页数:6
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