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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.11 [2004] >
IJCT Vol.11(1) [January 2004] >
| Title: | Synthesis and characterization of  -phenoxo-bridged binuclear copper(II) complexes derived from binucleating ligands |
| Authors: | Thirumavalavan, M
Rayappan, S Maria
Akilan, P
Kandaswamy, M |
| Issue Date: | Jan-2004 |
| Publisher: | CSIR |
| IPC Code: | C01G3/00 |
| Abstract: | The new pentadentate
binucleating symmetrical ligand 2,6-bis
[N-(3,5-dichloro-2-hydroxybenzyl)-N-cyclohexylamino-methyl]-4-methylphenol (H3L1)
has been prepared and its binuclear copper(II) complexes of the general formula
[Cu2L(X)], where X = OH (perchlorato counter ion complexes), OAc, NO3
have been prepared. Their spectral properties and catecholase activities were
studied. New unsymmetrical ligands and their complexes have also been
synthesized. The phenolate oxygen atom of the binucleating ligands behaves as a
bridging group. Conductivity studies showed that all the complexes are neutral.
ESR spectra of the complexes show a broad band centred at 3500 G with no
hyperfine splittings. The observed room temperature magnetic studies were found
to be less than spin only value for d9 system. The rate constants of
the complexes for the oxidation of catechol to o-quinone were in the range of 0.72 10-3 to 15.010-3 min-1. |
| Page(s): | 29-34 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.11(1) [January 2004]
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