Abstract

Two new mononuclear Schiff base copper(II) complexes, [CuBr2L] (1) and [CuBr(NCS)L] (2), where L=N,N‐dimethyl‐N′‐(1‐pyridinylmethylidene)propane‐1,3‐diamine, have been obtained from a similar synthetic procedure. The complexes were characterized by elemental analyses and single crystal X‐ray diffraction. In 1, the copper(II) ion is five‐coordinated in a distorted square‐pyramidal configuration, with three N atoms of L and one terminal Br atom defining the basal plane and with the other terminal Br atom occupying the apical position. The coordination of the copper(II) ion in 2 is similar to that of 1, but the basal terminal Br atom is replaced by the N atom of a terminal thiocyanate anion. The Schiff base ligand L and the two copper(II) complexes show potent antibacterial activities.

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