21-May-2013
17:10:15 IST
|
NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.48A [2009] >
IJC-A Vol.48A(10) [October 2009] >
| 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 |
| IPC Code: | Int. Cl.9 C07C251/02; C07F1/08 |
| Abstract: | Mixed
ligand copper(II) complexes, viz.,
[Cu(Br-SAA)(ImH)],
[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 P-1 with unit cell parameters: a
= 3.7875(15)Å, b = 10.6246(19)Å, c = 19.977(3)Å,  = 96.565(14)°,
 = 94.45(2)°,
 = 92.32 (2)° and Z = 2. The one electron paramagnetic complexes show a d-d 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 CuN2O2 coordination
geometry. Superoxide dismutase activity of these complexes have also been
examined |
| Page(s): | 1370-1377 |
| ISSN: | 0975-0975 (Online); 0376-4710 (Print) |
| Source: | IJC-A Vol.48A(10) [October 2009]
|
|
