Synthesis, Spectroscopic and Physico chemical Characterization of Cu (II), Ni(II), Co(II) and Mn(II) Coordination compounds with 4-methoxy- salycylaldehyde-4-(2'-carboxy-5'-sulphophenyl)-3-thiosemi-carbazone (4- MSCST)

The synthesis and characterization of copper (II), nickel (II), cobalt (II) and manganese (II) coordination compounds of 4methoxy salycylaldehyde-4-(2’-carboxy-5’-sulphophenyl)-3-thiosemicarbazone (4-MSCST) have been presented. The prepared metal complexes are ML 2 type . (M= Cu, Ni, Co and Mn; L= 4-MSCST). The IR spectrum suggests that the thiosemicarbazones coordinate in their neutral form and they act as [Metal, N] bidentate chelating ligand. Magnetic properties and UV-visible spectra indicate the octahedral geometries of the 4-MSCST metal complexes. In this work we have proposed the possible structures of the formulated complexes using TGA studies. All the prepared compounds have been tested for their antimicrobial activities .