SYNTHESIS AND ANALYTICAL STUDIES ON METAL COMPLEXES FOR C-H BOND ACTIVATION

Abstract

The reaction of iron (II) chloride with 3,5-diisopropylpyrazole resulted in the formation of [(3,5-Pr12pzH)2FeC12]. The same reaction mixture in presence of different para substituted benzoate (p-X-OBz) and excess amount of H202 gave mononuclear Fe(III) complex [Fe(3-OCMe2,5-Pr'2pz)3].2X-OBz (where X = H, Cl, F, CH3, OCH3, CHO, CN, NH2, NO2). In these complexes one of the methine groups present in each of three 3,5-diisopropylpyrazole rings were oxidized during • oxidation and coordinated to iron centre. These complexes were characterized by elemental analysis, IR, UV-Visible and thermal studies