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http://purl.org/purl/1969
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Title: | Characterization and Catalytic Activity of Polymer Supported Ruthenium Schiff Base Complexes Towards Catechol Oxidation |
Authors: | Mohammed Yusuff, K K Sridevi, N Pearly Sebastian, C Science |
Keywords: | polystyrene supported complexes Schiff base ruthenium(III) catalysis catechol oxidation |
Issue Date: | 9-Jan-2007 |
Publisher: | Wiley InterScience |
Abstract: | Ruthenium(III) complexes of the Schiff bases
formed by the condensation of polymer bound aldehyde and
the amines, such as 1,2-phenylenediamine (PS-opd), 2-aminophenol
(PS-ap), and 2-aminobenzimidazole (PS-ab) have been
prepared. The magnetic moment, EPR and electronic spectra
suggest an octahedral structure for the complexes. The complexes
of PS-opd, PS-ap, and PS-ab have been assigned the
formula [PS-opdRuCl3(H2O)], [PS-apRuCl2(H2O)2], [PS-ab-
RuCl3(H2O)2], respectively. These complexes catalyze oxidation
of catechol using H2O2 selectively to o-benzoquinone. The catalytic activity of the complexes is in the order [PS-ab-
RuCl3(H2O)2] . [PS-opdRuCl3(H2O)] [PS-apRuCl2(H2O)2].
Mechanism of the catalytic oxidation of catechol by ruthenium(
III) complex is suggested to take place through the formation
of a ruthenium(II) complex and its subsequent oxidation
by H2O2 to the ruthenium(III) complex. |
URI: | http://dyuthi.cusat.ac.in/xmlui/purl/1969 |
Appears in Collections: | Prof. K K Mohammed Yusuff
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