NICKEL(II) COMPLEXES OF 2-AMINOACETOPHENONE N(4)-SUBSTITUTED THIOSEMICARBAZONES

Mononuclear nickel(II) complexes with 2-aminoacetophenone thiosemicarb azones and three N(4)-substituted thiosemicarbazones have been prepare d in EtOH solution and characterized by physical and spectral methods. I.r. and electronic spectra of the thiosemicarbazones and their compl exes, along with physical properties of the complexes, have been obtai ned. The 2-aminoacetophenone thiosemicarbazones coordinate both as neu tral and anionic ligands via the thiosemicarbazone moiety's azomethine nitrogen and thione/thiolato sulfur [on loss of the N(2) hydrogen].