Abstract
A novel potential bidentate sulfur ligand, K2[S2CNHCOCH2CN] and its complexes with first row divalent transition metal ions of the type, M(phen)L, [M = Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Pd(II), L = S2CNHCOCH2CN and phen = 1,10-phenanthroline] have been synthesised and characterised. On the basis of IR and 1H NMR an enol form is found in the case of ligand and its complexes in the solid state whereas the complexes exist predominantly in the keto form in solution. Electronic spectra and magnetic measurement data indicate that the Ni(II), Cu(II) and Pd(II) complexes have a square-planar geometry but the others have a distorted-tetrahedral structure.
