Synthesis, Structure, and Spectral Characterization of Cu(ΙΙ) Complexes of Thiocarbohydrazide and Derivates

Abstract

The synthesis and structure of thiocarbohydrazide and metal complexes of thiocarbohydrazone ligand are described. The ligand was obtained by condensation of N,N`-thiocarbohydrazide with salicylaldehyde. The Cu(II)complex have been synthesized by reacting CuCl₂.2H₂O and Ligand by molar ratio 2:1(M:L),while the Cu(II) complex of thiocarbohydrazide have been synthesized by reacting CuCl₂.2H₂O and TCH  by molar ratio 1:2(M:L) These complexes are soluble only to a larger extent in DMF and DMSO .The bonding sites are the azomethine nitrogen atom, phenolic oxygen atom and thiol sulfur atom. The metal complexes exhibit square planner and octahedral structure. Characterization and structure elucidation of the synthesized compounds were achieved by spectral (IR, electronic,¹H and ¹³C NMR) as well as  molar conductivities.

Keywords: Thiocarbohydrazide, Thiocarbohydrazone ligand, Cu( ) Complexes, ¹H and ¹³C NMR.