• Nisha
• Himanshu Shekhar
• Shyam Deo Yadav

Some new Co (II), Ni (II), Cu (II), and Zn (II) complexes of the Schiff base ligand, the condensation product of thiosemicarbazide with Ortho-benzoyl p-cumenol, was synthesized in a methanolic medium and the change in colour of metal salt indicated the formation of complexes. Elemental analysis, IR- spectra, molar conductance measurements, and melting points were used to characterize the Schiff base and its metal complexes. From the elemental analysis data, the metal complexes formed had the general formulae [M (L)2(H2O)2], where L = Schiff base ligand and M = Co, Ni, Cu, and Zn. The bonding of the ligand with central metal ions was confirmed by the IR-Spectra of the ligand. The IR- frequency of OH and HNN reduced after complexation. It indicated that the coordination bond was formed with the “N” and “O” donor atoms of the Schiff base ligand, and thus, a six coordinated octahedral geometry was proposed for all the prepared complexes.

Ambidentate ligand, IR-spectra, Paramagnetism, Schiff base, Thiosemicarbazide.

"Synthesis and characterization of complexes of Co (II), Ni (II), Cu (II) and Zn (II) with ligand of Thiosemicarbazide derivative of “Ortho-Benzoyl p-Cumenol”.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 10, page no.f161-f164, October-2023, Available :http://www.jetir.org/papers/JETIR2310419.pdf

"Synthesis and characterization of complexes of Co (II), Ni (II), Cu (II) and Zn (II) with ligand of Thiosemicarbazide derivative of “Ortho-Benzoyl p-Cumenol”.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 10, page no. ppf161-f164, October-2023, Available at : http://www.jetir.org/papers/JETIR2310419.pdf