Synthesis, X-ray crystal structure and reactivity of the polymeric copper(II) dicarboxylic acid complex dicarboxylic acid complex {Cu-2(eta(1)eta(1)mu(2)-oda)(2)(py)(4)(H2O)(2)}(n)(odaH(2)=octanedioic acid, py=pyridine)

被引:24
作者
Devereux, M
McCann, M
Cronin, JF
Cardin, C
Todd, A
机构
[1] ST PATRICKS COLL,DEPT CHEM,MAYNOOTH,KILDARE,IRELAND
[2] UNIV READING,DEPT CHEM,READING RG6 2AD,BERKS,ENGLAND
关键词
D O I
10.1016/0277-5387(95)00356-1
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
An aqueous solution of the alpha,omega-dicarboxylic acid octanedioic acid (odaH(2)) reacts with [Cu-2(mu-O2CCH3)(4)(H2O)(2)] in the presence of an excess of pyridine (py) to give the crystalline copper(II) complex {Cu-2(eta(1) eta(1) mu(2)-oda)(2)(py)(4)(H2O)(2)}(n) (1). The structure of 1, as determined by X-ray crystallography, consists of polymeric chains in which bridging oda(2-) anions link two crystallographically identical copper atoms. The copper atoms are also ligated by two transoidal pyridine nitrogens and an oxygen atom from an apical water molecule, giving the metals an overall N2O3 square-pyramidal geometry. If the blue solid 1 is gently heated, or if it is left to stand in its mother liquor for prolonged periods, it loses one molecule of pyridine and half a molecule of water and the green complex {Cu (oda)(py)(H2O)(0.5)}(n) (2) is formed. Spectroscopic and magnetic data for both complexes are given, together with the electrochemical and thermogravimetric measurements for 1.
引用
收藏
页码:785 / 791
页数:7
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