Abstract
A coordination polymer, [Cu(tmen)(succ)]n·4nH2O (1) (where succ2- = succinate dianion, tmen = N,N,N′,N′-tetramethylethylenediamine), was prepared by reacting CuCl2·2H2O, succinic acid (H2succin) and tmen, and was characterized by elemental analysis, UV-visible spectroscopy, FTIR spectroscopy, thermogravimetric (TGA) and single-crystal X-ray diffraction analyses. The copper(II) ion in 1 has a distorted cis-CuN2O4 octahedral coordination environment in which the metal ion is bonded to a chelating tmen molecule and four O atoms from two bridging, asymmetrically chelating succ dianions. The bridging succ dianions link the copper(II) ions into [100] polymeric chains. In the crystal, all the H atoms of the water molecules of crystallization form O–H···O hydrogen bonds, which together with weak C–H…O hydrogen bonds results in a three-dimensional supramolecular network. The antibacterial activity of 1 was studied using the strains Bacillus spizizenii, Escherichia coli, Klebsiella pneumonia, Staphylococcus aureus, and antifungal activity was studied for Aspergillus niger. It showed significant activity against E. coli.
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Disclosure statement
No potential conflict of interest was reported by the authors.