Hydrothermal Synthesis and Structure Analysis of a Chromium Complex [Cr(aea)]_2(OH)_2(aea =N-(2-Aminoethyl)aspartate)  

作　　者：DANG Dong-Bin JIN Ya-Nan BAI Yan PAN Xiao-Jing WANG Jing-Ping 

机构地区：[1]Institute of Molecular and Crystal Engineering, School of Chemistryand Chemical Engineering, Henan University, Kaifeng 475001, China

出　　处：《Chinese Journal of Structural Chemistry》2008年第2期225-229,共5页结构化学（英文）

基　　金：Supported by the Ministry of Education of China (No. 207068);the Natural Science Foundation of Henan Province (No. 0611023000);Henan University (06YBZR017)

摘　　要：A dimeric chromium compound has been synthesized by hydrothermal method and characterized by IR, EPR spectra and TG-DTA technique. The title compound [Cr（aea）]2（OH）2 （aea = N-（2-aminoethyl）aspartate） crystallizes in monoclinic, space group P21/c with a = 8.9393（10）, b = 6.7198（7）, c = 14.6791（16） A, β = 91.0580（10）°, V= 881.63（17） A3, Z= 2, Mr = 486.34, De= 1.832 g/cm3, F（000） = 500,μ = 1.296 mm-1, R = 0.0271 and wR = 0.0756. Single-crystal X-ray structural analysis indicates that the title compound consists of two Cr（aea） units linked by two bridging hydroxyl groups. The geometry around each chromium center is approximately octahedral and completed by two hydroxyls and a quadridentate ligand which is formed when ethylenediamine reacts with maleic acid.A dimeric chromium compound has been synthesized by hydrothermal method and characterized by IR, EPR spectra and TG-DTA technique. The title compound [Cr（aea）]2（OH）2 （aea = N-（2-aminoethyl）aspartate） crystallizes in monoclinic, space group P21/c with a = 8.9393（10）, b = 6.7198（7）, c = 14.6791（16） A, β = 91.0580（10）°, V= 881.63（17） A3, Z= 2, Mr = 486.34, De= 1.832 g/cm3, F（000） = 500,μ = 1.296 mm-1, R = 0.0271 and wR = 0.0756. Single-crystal X-ray structural analysis indicates that the title compound consists of two Cr（aea） units linked by two bridging hydroxyl groups. The geometry around each chromium center is approximately octahedral and completed by two hydroxyls and a quadridentate ligand which is formed when ethylenediamine reacts with maleic acid.

关 键 词：chromium compound hydrothermal synthesis crystal structure 

分 类 号：O614.611[理学—无机化学] O641.4[理学—化学]