Synthesis, Crystal Structure, Luminescent and Electrochemical Properties of a New Binuclear Cd(II) Complex with 2,4-DAA as Ligand

One new complex Cd-2(2,4-DAA)(4)(2,2'-bipy)(2) with 2,4-dichlorophenoxy acetic acid (2,4-DAA) and 2,2'-bipyridine (2,2'-bipy) as ligands has been synthesized and characterized. Crystal data for this complex are as follows: monoclinic, space group P (1) over bar, a=1.049 9(2) nm, b=1.094 2(2) nm, c=1.185 7(2) nm, alpha=96.70(3)degrees, beta=105.20(3)degrees, gamma= 91.75(3)degrees, V=1.303 0(5) nm(3), D-c=1.806 g.cm(-3), Z=2, mu(Mo K alpha)=1.295 min(-1), F(000)=704, final discrepancy factors R-1=0.042 1, wR(2)=0.102 1. In the crystal, two neighboring Cd(II) ions are bridged by four 2,4-dichlorophenoxy acetic radicals, and their end positions are coordinated with two 2,2'-bipyridine molecules, forming a binuclear cage structure. The coordination environment of each cadmium(II) ion is CdO4N2, giving a distorted triprism coordination geometry. Luminescent property and the cyclic voltammetric behavior of the complex were investigated. CCDC: 781765.