Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

Reach Us +44 1625708989
All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Original Articles: 2016 Vol: 8 Issue: 6

Study of the ternary complexes of lanthanum with 2, 3-dimethyl-1-phenyl-4- salicylidene-3-pyrazolin-5-one and some Amino Acids


The ternary complexes of lanthanum (III) with 2, 3-dimethyl-1-phenyl-4-salicylidene-3-pyrazolin-5-one (HL) and Ltryptophan, L-phenylalanine, L-isoleucine, L-proline and L-serine have been studied. The mixed ligand complexes have been prepared and characterized on the basis of elemental analysis, conductivity data, magnetic susceptibility measurements, UV-visible, infrared spectra, 1H NMR spectra and thermal analysis data. In these complexes, the Schiff base acts as a primary ligand and amino acids acts as secondary ligand which coordinates through the carboxylate oxygen and the amino nitrogen. The thermal stability of the complexes was studied and the weight losses were correlated with structure of the complexes. La (III) complexes were screened for their antimicrobial activities and show the potent biological activities.