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SYNTHESIS, CHARACTERIZATION AND SUPEROXIDE-DISMUTASE ACTIVITY OF SOME TERNARY COPPER(II) DIPEPTIDE-2,2'-BIPYRIDINE, 1,10-PHENANTHROLINE AND 2,9-DIMETHYL-1,10-PHENANTHROLINE COMPLEXES

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Title SYNTHESIS, CHARACTERIZATION AND SUPEROXIDE-DISMUTASE ACTIVITY OF SOME TERNARY COPPER(II) DIPEPTIDE-2,2'-BIPYRIDINE, 1,10-PHENANTHROLINE AND 2,9-DIMETHYL-1,10-PHENANTHROLINE COMPLEXES
 
Creator BHIRUD, RG
SRIVASTAVA, TS
 
Subject dipeptide complexes
crystal-structure
stereochemistry
stability
growth
cells
ion
 
Description Several complexes of 2,2'-bipyridine, 1,10-phenanthroline and 2,9-dimethyl-1,10-phenanthroline with copper(II) dipeptides have been synthesized. These complexes are neutral and show a broad absorption band in the range 630-640 nm due to d-d transition. The solution and glassy state ESR spectra of the complexes have been measured at 301 and 77 K, respectively. The magnetic and bonding parameters of these complexes have been calculated from the above data. The ESR spectral data suggest that these complexes have distorted square pyramidal geometry about Cu(II). The superoxide dismutase activity of several of the above complexes has been measured. They show higher activity than the corresponding CU(II) dipeptide complexes because of a strong axial bond of one of the nitrogen atoms of the alpha-diimine.
 
Publisher ELSEVIER SCIENCE SA LAUSANNE
 
Date 2011-07-29T16:26:45Z
2011-12-26T12:48:47Z
2011-12-27T05:53:46Z
2011-07-29T16:26:45Z
2011-12-26T12:48:47Z
2011-12-27T05:53:46Z
1991
 
Type Article
 
Identifier INORGANICA CHIMICA ACTA, 179(1), 125-131
0020-1693
http://dx.doi.org/10.1016/S0020-1693(00)85383-9
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7762
http://hdl.handle.net/10054/7762
 
Language en