Ten novel lanthanide complexes with H3CAPT (H3CAPT = 1-(N-carboxymethyl-N-phenyl)amino-acetyl-4-phenyl-3-thiosemicarbazide), having the general formula Ln(CAPT)nH2O (where Ln = La, Ce, Nd, n = 2; Ln = Sm, n =4; Ln = Gd, Tb, Dy, Er, Y, n = 6; Ln = Yb, n = 5), have been synthesized and characterized on the basis of elemental analysis, IR,1HNMR, molar conductance, TG and DTA. It was found that one water molecule participates in coordination to the metal ion. These complexes are non-electrolytes in DMF.
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