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Please use this identifier to cite or link to this item: http://purl.org/purl/1969

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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