Abstract
The carboxylate-bridged dinuclear complex [Cd(μ-pmpa)(H2O)](ClO4)·H2O (1) (Hpmpa = bis(2-pyridylmethyl)amino-3-propionic acid) has been synthesized and structurally characterized by X-ray diffraction method. It crystallizes in the monoclinic system P21/n with a = 7.9678(6) A, b = 17.5103(9) A, c = 14.3147(9) A, β = 94.1030(10)°, V = 1992.0(2) A3, Z = 4. The carboxylate group of the pmpa ligand adopts a bidentate bridging coordination mode, and the ligand acts as μ-bridge linking two cadmium(II) ions to form a dinuclear complex. Each cadmium atom is seven-coordinate, with a distorted pentagonal bipyramidal geometry. The cyclic voltammogram of 1 undergoes irreversible one-electron oxidation to the Cd(III) and reversible one-electron reduction to the Cd(I).
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