Three New Zn(Ⅱ) Coordination Compounds Based on the in-situ Formed Tetrazolate Ligand: Syntheses, Crystal Structures and Luminescence Properties  

作　　者：骆亚 付露露 向景 

机构地区：[1]College of Chemistry and Environmental Engineering,Yangtze University

出　　处：《Chinese Journal of Structural Chemistry》2015年第1期95-102,共8页结构化学（英文）

基　　金：supported by the National Natural Science Foundation of China(21201023);the scientific research fund of Hubei Provincial Education Department(D20131202)

摘　　要：Reactions of 2-（2-benzoimidazolyl）acetonitrile and Na N3 with Zn SO4 or Zn Cl2 in the presence of nicotinic acid in the mixture of Et OH/H2 O afforded a mononuclear compound [Zn（L1）2]（1） and a 1-D polymer [Zn（L1）Cl]n（2）, respectively（L1 = 5-[（benzoimidazolyl）methyl]-1H-tetrazolate）. However, in the similar condition except that imidazole was added instead of nicotinic acid, the reaction afforded a 1-D compound [Zn（L1）2]n（3） featuring triply helical chains via the π-π stacking of ligands. They are characterized by elemental analysis and IR, and their structures have been determined by X-ray crystallography. Thermal stability of these compounds was measured by TGA and their luminescent properties were investigated at room temperature.Reactions of 2-（2-benzoimidazolyl）acetonitrile and Na N3 with Zn SO4 or Zn Cl2 in the presence of nicotinic acid in the mixture of Et OH/H2 O afforded a mononuclear compound [Zn（L1）2]（1） and a 1-D polymer [Zn（L1）Cl]n（2）, respectively（L1 = 5-[（benzoimidazolyl）methyl]-1H-tetrazolate）. However, in the similar condition except that imidazole was added instead of nicotinic acid, the reaction afforded a 1-D compound [Zn（L1）2]n（3） featuring triply helical chains via the π-π stacking of ligands. They are characterized by elemental analysis and IR, and their structures have been determined by X-ray crystallography. Thermal stability of these compounds was measured by TGA and their luminescent properties were investigated at room temperature.

关 键 词：tetrazole  Zn（II）  helical structure  photoluminescence 

分 类 号：O627.23[理学—有机化学]