Abstract
Polymer-anchored Ru(III) complexes have been synthesised by sequential attachment of trimethylenediamine ligand to chloromethylated styrene—divinylbenzene copolymer as well as to Zeo-Karb 226. The prepared catalysts were characterized by various techniques such as UV—Vis reflectance spectroscopy, IR, ESCA, ESR and X-ray analysis. Other physicochemical properties such as surface area (by BET method), moisture content, bulk density, swelling, and crushing strength have also been studied. These catalysts were tested for the study of the kinetics of the hydrogenation of nitrobenzene as a model reaction. The influence of various factors such as the temperature and the concentrations of the catalyst and substrate has been studied. The catalytic activities of the polymer-bound catalysts were found to be higher than those of their homogeneous counterparts.
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