Direct electrochemical synthesis and crystal structure of a new mononuclear copper(II) complex: [(bipy)(2)Cu(PhCOO)]ClO4 center dot(benzil) (benzil=1,2-diphenyl-ethane-1,2-dione)

作者：Yuan Ya Xian; Gu Ren Ao; Yao Jian Lin^*

来源：Chinese Journal of Structural Chemistry, 2007, 26(4): 484-488.

• copper
• benzil
• benzoin
• crystal structure
• electrochemical oxidation

A new mononuclear-copper(II) complex [(bipy)(2)Cu(PhCOO)]ClO4 center dot(benzil) (bipy = 2,2'-bipyridine, benzil = 1,2-diphenyl-ethane-1,2-dione) was synthesized by direct electrochemical oxidation of Cu electrode in an acetonitrile solution with benzoic acid, 2,2'-bipyridine and benzoin. As soon as the current flowed in the cell, benzoin was oxidized to benzil quickly. The crystal structure was determined by X-ray diffraction. It belongs to monoclinic system, space group P2(1)/c with a = 14.860(2), b = 20.784(3), c 11.9150(17) angstrom(3), beta = 10 1.401(3)degrees, V = 3607.3(9) angstrom(3), Z = 4, M-r. = 806.69, D-c. = 1.485 g/cm(3), F(000) 1660, mu = 0.742 mm(-1), R = 0.0788 and wR = 0.1519 for 6254 observed reflections (I > 2 sigma(I)). The complex contains a mononuclear [(biPY)(2)Cu(PhCOO)](+) cation, a solvate benzil molecule and a ClO4- anion which locates around the cation outside acting as the counter ion. The Cu(II) ion is coordinated by two 2,2'-bipyridines and one benzoato ligand to form a distorted square-pyramid.

• 出版日期2007
• 单位苏州大学; 宿州学院