New Copper(II) and Nickel(II) Complexes with Bifunctional Tetrazolate-5-carboxylate Ligands: Syntheses, Crystal Structures, and Magnetic Properties

被引：20

作者：

Wu, A-Qing ^{[1
,2
]}

Chen, Qi-Yong ^{[1
]}

Wu, Mei-Feng ^{[1
,2
]}

Zheng, Fa-Kun ^{[1
]}

Chen, Feng ^{[1
,2
]}

Guo, Guo-Cong ^{[1
]}

Huang, Jin-Shun ^{[1
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

AUSTRALIAN JOURNAL OF CHEMISTRY | 2009年 / 62卷 / 12期

关键词：

2D COORDINATION POLYMERS; WATER; METAL; ACID; MOLECULES; TRANSPORT; HOST; GD;

D O I：

10.1071/CH09009

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Four new complexes with bifunctional tetrazolate-5-carboxylate ligands of 1H-tetrazole-5-formic acid (H(2)tzf) and 1H-tetrazole-5-acetic acid (H(2)tza), namely two dinuclear [M(tzf)(H2O)(3)](2)center dot 2H(2)O (M = Cu 1, Ni 2) and two mononuclear [Cu(tzf)(2,2'-bipy)(2)]center dot 5H(2)O3 and Cu(tza)(2,2'-bipy)H(2)O4, were prepared and structurally characterized by single-crystal X-ray diffraction. Two different coordination modes of tetrazolate-5-carboxylate ligands exist: a tridentate N,O-chelated-N-bridged mode in 1 and 2, and a bidentate N,O-chelated mode in 3 and 4, which was first observed for the tetrazolate-5-carboxylate complexes. Extensive hydrogen bonds play an important role in the construction of the supramolecular network. Variable-temperature magnetic susceptibility data show the presence of antiferromagnetic interactions in 1 and 2. The thermogravimetric analyses of complexes 1-4 are also discussed.

引用

页码：1622 / 1630

页数：9

共 34 条

[31] Synthesis, crystal structures and optical properties of two coordination polymers from 4-(1H-tetrazol-5-yl) benzoic acid [J].