Synthesis, Crystal Structure and Electrochemical Studies of catenaPoly([bis(1-vinyl-1H-imidazole-KN3)copper(II)]-μ-phthalato-k2O:O')

• 来源期刊: 中国化学(英文版)
• 年，卷（期）: 2008,（9）
• 页码范围: 1732-1736
• 页数: 5页
• 语种: 英文

摘要

The crystal of [Cu(pa)(vim)2]n (where pa=phthalic acid dianion,vim=1-vinyl-1H-imidazole) was synthesized and its structure was characterized by X-ray single crystal diffractometry and elemental analysis.It crystallizes in monoclinic system,C2/c space group with the cell parameters of a=1.6527(3) nm,b=0.81800(16) nm,c=1.4463 (3) nm,β =113.19(3)°,V=1.7973(7) nm3,Z=4,and Dc =1.537 g·cm-3.Final R indices [I＞ 2σ(I)]are:R1 =0.0476,wR2=0.1235 while R indices for all data are:R1 =0.0693,wR2=0.1355.The title compound exhibits an existence of polymeric zigzag chains extended along c-axis.Each Cu(II) ion is located at a crystallographic center of symmetry being coordinated by two N and two O atoms in a distorted square-planar geometry.The electrochemical studies reveal that redox of Cu2+/Cu+ is a quasi-reversible one-electron process.