Synthesis And Characterization Of Multinuclear Transition Metal Complexes Based On S-traizine Containing Multidentate Ligands

The multidentate ligand, BDTSTHEBD, was synthesized using precursors such as DAAP,rnDAAD, BDTHEBD and thiosemicarbazide and was characterized by FTIR, NMR andrnelectronic spectroscopy. Co (II) and Ni (II)-complexes were synthesized using the ligand,rnBDTSTHEBD, and respective metal chloride in a mole ratio of 1:3 and characterized byrnanalytical studies, FTIR and electronic spectroscopy, conductance, magneticrnsusceptibility measurement and thermal analysis.rnThe non-electrolyte natures of the complexes were ascertained from conductivityrnmeasurements. Atomic absorption spectroscopy (AAS) and thermal analysis (TA)rntechniques were also used to characterize the metal complexes. UV-VIS and magneticrnsusceptibility measurements indicate octahedral geometry for Co(II)-complex andrntetrahedral geometry for Ni(II)-complex.rnKey words: Heterocyclic compounds, multidentate ligand, Co (II) and Ni (II)rncomplexes, thiosemicarbazide, synthesis of BDTSTHEBD.

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