Akademik Veri Yönetim Sistemi
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, cilt.75, sa.2, ss.782-788, 2010 (SCI-Expanded)
Two new nickel(II) [Ni(L)2] and copper(II) [Cu(L)2] complexes have been synthesized with bidentate NO donor Schiff base ligand (2-{(Z)-[furan-2-ylmethyl]imino]methyl}-6-methoxyphenol) (HL) and both complexes Ni(L)2 and Cu(L)2 have been characterized by elemental analyses, IR, UV-vis, 1H, 13C NMR, mass spectroscopy and room temperature magnetic susceptibility measurement. The tautomeric equilibria (phenol-imine, O-H⋯N and keto-amine, O⋯H-N forms) have been systemetically studied by using UV-vis absorption spectra for the ligand HL. The UV-vis spectra of this ligand HL were recorded and commented in polar, non-polar, acidic and basic media. The crystal structures of these complexes have also been determined by using X-ray crystallographic techniques. The complexes Ni(L)2 and Cu(L)2 crystallize in the monoclinic space group P21/n and P21/c with unit cell parameters: a = 10.4552(3) Å and 12.1667(4) Å, b = 8.0121(3) Å and 10.4792(3) Å, c = 13.9625(4) Å and 129.6616(3)Å, V = 1155.22(6) Å3 and 1155.22(6) Å3, Dx = 1.493 and 1.476 g cm-3 and Z = 2 and 2, respectively. The crystal structures were solved by direct methods and refined by full-matrix least squares to a find R = 0.0377 and 0.0336 of for 2340 and 2402 observed reflections, respectively. © 2009 Elsevier B.V. All rights reserved.