Synthesis and characterization of mixed nickel thiosemicarbazone complexes

Hana Bashir Shawish, Mohd Jamil Maah, Siti Nadia Abdul Halim


Three nickel thiosemicarbazone mixed ligands complexes have been synthesized. Complexes with the formula [NiL(PPh3)]Cl, [Ni2L2(Phen)],
[Ni2L2(Bpy)] (where L= 2,3,4-trihydroxybenzaldehydethiosemicarbazone, PPh3=Triphenylphosphine, Phen=1,10-phenanthroline, Bpy= 2,2 –Bipyridine)
have been characterized by IR spectroscopy, as well as elemental analysis. The structure of [NiL (PPh3)]Cl has been determined by X-ray
crystallography. The crystal structure of this complex shows that the Schiff base ligand functions as an N,O,S chelating anion to the phosphine –
coordinated nickel(II) atom, which exists as a distorted square – planar geometry.


2,3,4-trihydroxybenzaldehydethiosemicarbazone; nickel(II); triphenylphosphine; 1,10-phenanthroline; 2,2-bipyridine;

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