Crosslinked Pyrazole Functionalized Resin Complexes of Transition Metals as Polymeric Catalysts for Hydrogen Peroxide Decomposition
1Department of Chemistry, Sree Ayyappa College for Women, Chunkankadai, Nagercoil, Tamilnadu (India).
2Department of Chemistry, University College, Trivandrum, Kerala - 695 034 (India).
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Functionalized polymers are found to be highly efficient in immobilizing transition metal ions. The activity of Fe(III), Co(II), Ni(II) and Cu(II) complexes of polystyrene bound pyrazole resin have been tested towards the decomposition of hydrogen peroxide. The reactions show a first order dependence on the concentration of both the substrates and the catalyst. The metal complexes having less cross linking at the backbone and ring-activating group near the active site show high catalytic efficiency.
KEYWORDS:Metal complexes; Polymer supported ligands; poly-styrene supported ligands; Pyrazole ligands; Hydrogen peroxide
