Preparation and Characterization of some Transition Metal Complexes with Crotyl xanthate Ligand and their Adducts with Nitrogen Bases

A new series of xanthate complexes of the general formula [M(Crotxant)2], [M(Crotxant)2.nL] where M = Fe(II), Co(II), Ni(II), Cu(II), Crotxant = Crotyl xanthate, n = 2,L = pyridine, quinoline, 4-picoline, n = 1, L = ethylenediamin , 1,10- phenanthroline. All the isolated complexes have been prepared and characterized by atomic absorption, molar conductivity, Infrared, electronic absorption spectra and magnetic measurement.
The conductivity measurements proved the non-electrolytic behaviour of all compounds, magnetic susceptibility measurements and electronic spectra show a tetrahedral geometry for complexes of the type [M(Crotxant)2] and octahedral geometry for complexes of the type [M(Crotxant)2.nL] .