Synthesis and Characterization of Co(II) and Ni(II) Complexes of Biologically Active 4[N-(4-dimethylamino-benzalidene) amino] Antipyrine Thiosemicarbazone

Abstract

In this paper we report a series of ten complexes of Co(II) and Ni(II) with 4[N-(4-dimethylaminobenzalidene)amino] antipyrine thiosemicarbazone (DABAAPT) having the general composition MX₂·(DABAAPT)· H₂O (X = Cl^–, NO^–₃,NCS^– or CH₃COO^–;
M = CO²⁺ or Ni²⁺) and M(ClO₄)₂·2(DABAAPT) (M = CO²⁺ or
Ni²⁺). The complexes were characterized on the basis of elemental
analyses, molecular weight, magnetic moment, conductivity
measurement, infrared and electronic spectra. In all the complexes
DABAAPT behaves as tridentate (N, N, S) ligand. Thermal properties
of these complexes were also investigated.