New Soluble Coordination Chain Polymers of Nickel(II) and Copper(II) ions and their Biological Activity

• Published in: Transition metal chemistry (Weinheim) 2005-09, Vol.30 (6), p.765-770
• Main Authors: Kurtoğlu, Mükerrem, İspir, Esin, Kurtoğlu, Nurcan, Toroğlu, Sevil, Serin, Selahattin
• Format: Article
• Language: English
• ISSN: 0340-4285; 1572-901X
• DOI: 10.1007/s11243-005-6273-7

A new tetraoxime ligand, (2E, 3E, 9E, 10E)-1, 4, 8, 11-tetraazacyclotetradecane-2, 3, 9, 10-tetrone tetraoxime has been prepared by the template condensation of 1,3-propanediamine and cyanogen-di-N-oxide, obtained by treating (E, E)-dichloroglyoxime in CH^sub 2^Cl^sub 2^ with Na^sub 2^CO^sub 3^ at -10 °C. The coordination chain polymers {[(pnngH^sub 2^)^sub 2^Ni]^sub n^ (5) and [(pncgH^sub 2^)^sub 2^Cu]^sub n^(6)} of two transition metal ions, [Ni(II) and Cu(II)] with the vic-dioxime ligand have been prepared. The oxime ligand acts as a polydentate ligand bending through nitrogen atoms in the presence of a base, as do most of the vic-dioximes. In the complexes, the chloride ions coordinate to the nickel and copper ions. The structures of these novel vic-dioxime compounds are proposed on the basis of the elemental analyses, molar conductance data, i.r., and U.v.-visible are presented. Elemental analyses indicate a ligand metal ratio of 1:1 in the coordination polymers. Conductivity measurements have shown that mono- and polynuclear complexes are non-electrolytes. In addition, anti-microbial activities of the compounds have been investigated.[PUBLICATION ABSTRACT]