Synthesis, Spectral and Thermal Studies of Some Lanthanide (III) Complexes of 4-[N-(Benzalidene) Amino] Antipyrine Thiosemicarbazone

Abstract

A new series of sixteen lanthanide(III) complexes of 4-[N-(benzalidene)

amino] antipyrine thiosemicarbazone (BAAPTS) with the

general composition LnX₃·n(BAAPTS) (X = Cl^–, n = 2; X = NO^–₃,

n = 1; Ln = La, Pr, Nd, Sm, Gd, Td, Dy and Ho) have been synthesized

and characterized by chemical analysis, conductance, molar

weight, magnetic moments measurements, infrared and electronic

spectra. The ligand BAAPTS behaves as neutral tridentate (N, N, S)

ligand. The probable coordination number is nine in these

complexes.