Lanthanide-alkali metals-oxalates coordination polymers: Synthesis and structures of [Nd(C2O4)1.5(H2O)3] • 2H2O, Nd(C2O4)(CH3COO)(H2O), KLn(C2O4)2(H2O)4 (Ln = Y, Tb)

被引:30
作者
Zhang, Xingjing [1 ]
Xing, Yongheng [1 ]
Wang, Chunguang [1 ]
Han, Jing [1 ]
Li, Jing [1 ]
Ge, Maofa [2 ]
Zeng, Xiaoqing [2 ]
Niu, Shuyun [1 ]
机构
[1] Liaoning Normal Univ, Coll Chem & Chem Engn, Dalian 116029, Peoples R China
[2] Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
基金
中国国家自然科学基金;
关键词
Lanthanide; Oxalate; Synthesis; Structure; Spectrum; RARE-EARTH CARBOXYLATES; MIXED-LIGAND COMPLEXES; CRYSTAL-STRUCTURE; MOLECULAR-STRUCTURE; THERMAL-BEHAVIOR; FRAMEWORK; FAMILIES; GD; DEHYDRATION; CONTRACTION;
D O I
10.1016/j.ica.2008.05.029
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Two new lanthanide-oxalates coordination polymers, [Nd(C2O4)(1.5)(H2O)(3)] center dot 2H(2)O 1, Nd(C2O4)(CH3-COO)(H2O) 2, and two new lanthanide-alkali-oxalates coordination polymers KY(C2O4)(2)(H2O)(4) 3, KTb(C2O4)(2)(H2O)(4) 4, have been synthesized under hydrothermal conditions and their structures were determined by single-crystal X-ray diffraction. Structural analysis shows that the two-dimensional (2D) layer structure of complex 1 is built up by the linkages of lanthanide atoms and the oxygen atoms of the bischelating oxalate ligands. In complex 2, for introducing of acetate groups, a 3D network with parallelogram channels (6.3 x 9.4 angstrom) of complex 2 was obtained. The 3D structures of complexes 3 and 4 contain a channel. filled with lattice water molecules, and the potassium atoms are located in the framework. (C) 2008 Elsevier B. V. All rights reserved.
引用
收藏
页码:1058 / 1064
页数:7
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