Trihydrated Complex of Tetrabenzimidazole Copper(Ⅱ) Sulfate  

作　　者：JIANFang-fang WANGHuan-xiang XIAOHai-lian JIAOKui 

机构地区：[1]NewMaterials＆FunctionCoordinationChemistryLaboratory,QingdaoUniversityofScienceandTechnology,Qingdao266042,P.R.China

出　　处：《Chemical Research in Chinese Universities》2005年第1期12-16,共5页高等学校化学研究（英文版）

基　　金：Supported by the Natural Science Foundation of Shandong Province(No.Y2 0 0 2 B0 6 )

摘　　要：A Trihydrated complex of benzimidazole copper(Ⅱ) sulfate [(C 7H 6N 2) 4CuSO 4]·3H 2O was synthesized and structurally characterized. The crystal structure of this compound is built up of six solvated water molecules and two dissimilar copper ions identified as Cu1 and Cu2. The coordination geometry of copper(Ⅱ) is a slightly distorted square pyramid. The four equivalent tertiary nitrogen atoms of the benzimidazole ligand form an equatorial plane, while the oxygen atoms of sulfato occupy the axial site. In the solid state, the title compound forms a three dimensional network structure via hydrogen bonds. The benzimidazole, sulfato ion and H 2O moieties are connected by the intermolecular hydrogen bonds. The (EPR) spectrum shows axial symmetry with g ⊥=2.039 and g ‖=2.285. Variable temperature magnetic susceptibility shows that there is a weak antiferromagnetic interaction between the neighboring copper(Ⅱ) ions.A Trihydrated complex of benzimidazole copper(Ⅱ) sulfate [(C 7H 6N 2) 4CuSO 4]·3H 2O was synthesized and structurally characterized. The crystal structure of this compound is built up of six solvated water molecules and two dissimilar copper ions identified as Cu1 and Cu2. The coordination geometry of copper(Ⅱ) is a slightly distorted square pyramid. The four equivalent tertiary nitrogen atoms of the benzimidazole ligand form an equatorial plane, while the oxygen atoms of sulfato occupy the axial site. In the solid state, the title compound forms a three dimensional network structure via hydrogen bonds. The benzimidazole, sulfato ion and H 2O moieties are connected by the intermolecular hydrogen bonds. The (EPR) spectrum shows axial symmetry with g ⊥=2.039 and g ‖=2.285. Variable temperature magnetic susceptibility shows that there is a weak antiferromagnetic interaction between the neighboring copper(Ⅱ) ions.

关 键 词：BENZIMIDAZOLE Copper(Ⅱ) complex Crystal structure EPR Magnetic susceptibility 

分 类 号：O614.121[理学—无机化学] O641.4[理学—化学]