Synthesis and characterization of Cu(II), Co(II), Ni(II) complexes with Schiff bases derived from 3-(4-chlorophenoxymethyl)-4-amino-5-mercapto- 1,2,4-triazole

Abstract

A new bidentate Schiff base ligands derived from 3-(4-chlorophenoxymethyl)-4-amino-5-mercapto-1,2,4-triazole with substituted salicylaldehyde and its Cu(II), Co(II) and Ni(II) complexes have been synthesized and characterized by elemental analysis, IR, electronic, 1HNMR and ESR spectra. The analytical data and spectral data reveals that the composition of the complexes to be ML2(H2O)2 where M = Cu(II), Co(II), Ni(II) and are non-electrolytic in nature. It is found that these complexes exhibit octahedral geometry. The various spectral data shows the monobasic bidentate character of the ligand coordinating through 'N' of azomethine and 'O' of phenyl group.