|
Z. Naturforsch. 2012,
67b, 872 – 876
doi:10.5560/ZNB.2012-0097
Crystal Structure and Properties of a New Copper(II) Complex Cu2(phen)2[C7H8(COO)2]2 ·(H2O)4.5
1 Department of Chemistry and Materials Science, Hengyang Normal University, Hengyang City, Hunan 421008, P. R. China
2 Hengyang Xicheng Organic Chemical Plant, Hengyang City, Hunan 421008, P. R. China
Reprint requests to Associate Professor Ying-Qun Yang. Tel: +867348485358. E-mail:
yingqunyq@163.com
Received April 5, 2012 / published online September 20, 2012
A new complex Cu2(phen)2[C7H8(COO)2]2 ·(H2O)4.5 (1) has been synthesized, with the dianion of bicyclo[2.2.1] hept-2-ene-5,6-dicarboxylic acid [C7H8(COOH)2] (LH2) and 1,10-phenanthroline (phen) as ligands. In 1, L2− anions link Cu(II) cations to form two binuclear structure units, in which each Cu(II) cation is coordinated by five donor atoms to give a distorted square-pyramidal geometry. The magnetic data of 1 show that it exhibits weak antiferromagnetic properties at low temperature. When the excitation wavelength is at 470 nm, it has an intense photoluminescence. In addition, the cyclovoltammetric electron
transfer is quasi reversible in the electrode reaction of 1, two electrons being involved in the reaction corresponding to Cu(II)/Cu(0).
Key words: Copper(II) Complex, Crystal Structure, Magnetic and Fluorescence Properties