Synthesis and Characterization of Some Adducts of O-Hexyl Dithiocarbonates of Nickel(II) with Heterocyclic Amines

A series of adducts of o-hexyl dithiocarbonate of nickel(II) [(C6H13OCS2)2 Ni] have been synthesized in 1:2 molar ratio by the reaction of aqueous solution of NiCl2.6H2O with aqueous solution of potassium salt of o-hexyl dithiocarbonate. These complexes were further reacted with nitrogen donor ligands to obtain donor stabilized complex of the type [(C6H13OCS2)2 Ni.nL], (L=2-,3-,4cyanopyridines and 2-,3-,4-aminopyridines, n=2). These adducts were characterized by elemental analysis, molar conductance, magnetic susceptibility measurements, IR and electronic spectral studies. The spectral studies revealed the trans octahedral geometry of the adducts around the Ni(II) metal ion. All the adducts were paramagnetic and non-electrolytic in nature. These complexes have also depicted the potential antifungal activity against the fungus Curvularia lunata.