Synthesize, structural, magnetic and thermal studies of tridentate schiff bases and their co (ii) complexes

Schiff base tridentate ligands and their corresponding Co(II) complexes were synthesized and characterized by XRD, IR, NMR, UV– Visible spectra and thermal studies. The XRD revealed that the prepared complex have high degree of crystallinity with sharp crystalline peaks. The IR spectra confirm that the prepared ligands performed as monobasic tridentate towards central Co(II) ion. Elemental analysis revealed 1:2 metal to ligand stoichiometry and octahedral geometry for Co(II) complexes.IR spectra of the Schiff base ligands and its complexes are compared in order to determine the coordination sites on complexation.