Reversible Single-Crystal-to-Single-Crystal Transformation and Highly Selective Adsorption Property of Three-Dimensional Cobalt(II) Frameworks

被引：131

作者：

Su, Zhi ^{[1
]}

Chen, Min ^{[1
]}

Okamura, Taka-aki ^{[2
]}

Chen, Man-Sheng ^{[1
]}

Chen, Shui-Sheng ^{[1
]}

Sun, Wei-Yin ^{[1
]}

机构：

[1] Nanjing Univ, Nanjing Natl Lab Microstruct, Sch Chem & Chem Engn, Coordinat Chem Inst,State Key Lab Coordinat Chem, Nanjing 210093, Peoples R China

[2] Osaka Univ, Grad Sch Sci, Dept Macromol Sci, Osaka 5600043, Japan

来源：

INORGANIC CHEMISTRY | 2011年 / 50卷 / 03期

基金：

中国国家自然科学基金;

关键词：

METAL-ORGANIC-FRAMEWORK; FLEXIBLE TRIPODAL LIGAND; COORDINATION POLYMERS; SORPTION PROPERTIES; BUILDING-BLOCKS; COMPLEXES; ARCHITECTURES; CLUSTER; NETWORK; BINDING;

D O I：

10.1021/ic101618n

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A three-dimensional (3D) coordination polymer, [Co-3(L)(2)(BTEC)(H2O)(2)]center dot 2H(2)O [1, HL = 3,5-di(imidazol-1-yl)benzoic acid, H4BTEC = 1,2,4,5-benzenetetracarboxylic acid], with tfz-d topology has been hydrothermally synthesized. The framework of 1 has high thermal stability and exhibits single-crystal-to-single-crystal (SCSC) transformations upon removing and rebinding the noncoordinated and coordinated water molecules. X-ray crystallographic analyses revealed that the coordination geometry of Co(II) changes from octahedral to square pyramid upon dehydration, accompanying the appearance of one-dimensional (1D) open channels with dimensions of 2.0 x 2.8 angstrom. The dehydrated form [Co-3(L)(2)(BTEC)] (2) exhibits highly selective adsorption of water molecules over N-2, CH3OH, and CH3CH2OH, which could be used as sensors for water molecules. Furthermore, the magnetic properties of 1 and 2 were investigated, showing the existence of ferromagnetic interaction between the Co(II) atoms within the trinuclear subunit.

引用

页码：985 / 991

页数：7

共 66 条

[1] A Simple Lithium(I) Salt with a Microporous Structure and Its Gas Sorption Properties [J].