| Abstract: A new ligand, 3-formylsalicylic acid thiosemicarbazone has been synthesized by the reaction of 3-formylsalicylic acid with thiosemicarbazide. Its nine rare earth complexes have been prepared by reacting the ligand with REAc3·nH2O in methanol. The complexes have been characterized by elemental analyses, molar conductivities, IR, UV, 1H NMR and DTA-TG. The composition of these complexes is determined as ［REAc2L］·nH2O (RE=Y, La, Nd, Sm, Eu, Gd, Ho, Er, Yb. n=2～4). The synthesized ligand and its complexes have been evaluated for bacteriostatic activity against Escherichia Coli, Staphylococcus aureus and Bacillus subtilis. |
