Syntheses, Structures and Properties of Three Transition Metal Coordination Polymers Based on Semi-rigid 3-Pyridylnicotinamide and S/N-Containing Dicarboxylate Mixed Ligands  

作　　者：WANGXiuli GONGChunhua QUYun LIUGuocheng ZHANGJuwen 

机构地区：[1]Liaoning Province Silicon Materials Engineering Technology Research Centre, Department of Chemistry, Bohai University, Jinzhou 121000, P R. China

出　　处：《Chemical Research in Chinese Universities》2014年第5期709-714,共6页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China（No.21171025）, the Project for New Century Excellent Talents in University of China（No.NCET-09-0853）, and the Program of Innovative Research Team in University of Liaoning Province of China（No.LT2012020）.

摘　　要：Three new coordination complexes, [Co（L）（ADTZ）]·H2O（1）, [Cd（L）（ADTZ）]·H2O（2） and [Zn（L）（ADTZ）]·H2O（3）[L=3-pyridylnicotinamide, H2ADTZ=2,5-（s-acetic acid）dimercapto-1,3,4-thiadiazole], were synthesized under hydrothermal conditions. These complexes were structurally characterized by single-crystal X-ray diffraction analysis and further characterized by infrared spectroscopy（IR）, powder X-ray diffraction （PXRD） and thermogravimetric analysis（TGA）. Complexes 1-3 exhibit the similar 2D double-layer networks based on 1D [M-L], zigzag chains and 1D [M-ADTZ]2n double-chains with different distances between metal ions and with various conformations of ADTZ anions. In complexes 1 and 3, the 2D sheets are extended into a 3D supramolecular frameworks by hydrogen bonding interactions. The subtle effects of the central metal atoms on the structures of the title coordination polymers were discussed. The electrochemical properties of complex 1 and luminescent properties of complexes 2 and 3 were investigated. In addition, complexes 1-3 exhibit photocatalytic activity for dye methylene blue degradation under UV light and show good stability toward photoca- talysis.Three new coordination complexes, [Co（L）（ADTZ）]·H2O（1）, [Cd（L）（ADTZ）]·H2O（2） and [Zn（L）（ADTZ）]·H2O（3）[L=3-pyridylnicotinamide, H2ADTZ=2,5-（s-acetic acid）dimercapto-1,3,4-thiadiazole], were synthesized under hydrothermal conditions. These complexes were structurally characterized by single-crystal X-ray diffraction analysis and further characterized by infrared spectroscopy（IR）, powder X-ray diffraction （PXRD） and thermogravimetric analysis（TGA）. Complexes 1-3 exhibit the similar 2D double-layer networks based on 1D [M-L], zigzag chains and 1D [M-ADTZ]2n double-chains with different distances between metal ions and with various conformations of ADTZ anions. In complexes 1 and 3, the 2D sheets are extended into a 3D supramolecular frameworks by hydrogen bonding interactions. The subtle effects of the central metal atoms on the structures of the title coordination polymers were discussed. The electrochemical properties of complex 1 and luminescent properties of complexes 2 and 3 were investigated. In addition, complexes 1-3 exhibit photocatalytic activity for dye methylene blue degradation under UV light and show good stability toward photoca- talysis.

关 键 词：Hydrothermal synthesis Crystal structure Dipyridylamide S/N-Containing dicarboxylate Photocatalysis 

分 类 号：O634[理学—高分子化学] O614.121[理学—化学]