Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/6123
Title: Synthesis, characterization and superoxide dismutase activity of some four coordinated copper(II) complexes
Authors: Patel, R N
Keywords: Coordination chemistry
Copper
Imidazole
Schiff bases
X- ray crystallography
Issue Date: Oct-2009
Publisher: CSIR
Series/Report no.: Int. Cl.<sup>9 </sup>C07C251/02; C07F1/08
Abstract: Mixed ligand copper(II) complexes, viz.<i style="">,</i> [Cu(Br-SAA)(ImH)]<b style="">,</b> [Cu(Br-SAA)(MeImH)], [Cu(Br-SAA)(EtImH)], [Cu(Br-SAA)(BenzImH)] and [Cu(Br-SAA)(MebenzImH)], where Br-SAA = 5-bromosalicylideneanthranilic acid, ImH = imidazole, MeImH = 2-methyl imidazole, EtImH = 2-ethyl imidazole, BenzImH = benzimidazole, MebenzImH = 2-methyl benzimidazole are synthesized and characterized by elemental analysis, molar conductance measurements, magnetic susceptibility measurements, FAB mass, IR, electronic, EPR spectral and cyclic voltammetric studies. The complex [Cu(Br-SAA)(ImH)] structurally characterized by single crystal X-ray crystallography, crystallizes in the triclinic space group <i style="">P-1</i> with unit cell parameters: <i style="">a</i> = 3.7875(15)Å, <i style="">b</i> = 10.6246(19)Å, <i style="">c</i> = 19.977(3)Å, <img src='/image/spc_char/alpha.gif'> = 96.565(14)°<sub>,</sub> <img src='/image/spc_char/beta.gif'> = 94.45(2)°<sub>,</sub> <img src='/image/spc_char/gamma.gif'> = 92.32 (2)° and Z = 2. The one electron paramagnetic complexes show a <i style="">d-d</i> band near 700 nm in DMSO and a cyclic voltammetric response due to Cu(II)/Cu(I) couple. The complexes show the presence of a distorted square planar CuN<sub>2</sub>O<sub>2</sub> coordination geometry. Superoxide dismutase activity of these complexes have also been examined
Description: 1370-1377
URI: http://hdl.handle.net/123456789/6123
ISSN: 0975-0975 (Online); 0376-4710 (Print)
Appears in Collections:IJC-A Vol.48A(10) [October 2009]

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