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Chemistry Department, D. D. U. Gorakhpur University, Gorakhpur-273 009, Uttar Pradesh, India E-mail : sengupta@hotmail.co.uk Manuscript received online 10 May 2012, revised 21 June 2012, accepted 26 June 2012 The new lanthanum(III) and praseodymium(III) complexes of the general formula [LnCI(L)(H2O)2] (Ln = LaIII or PrIII; H2L = Schiff bases derived from 3-substituted-4-amino-5-hydrazino-1,2,4-triazoles and isatin) have been prepared. The complexes have been characterized by elemental analyses, molecular weight by FAB-mass, thermogravimetry, electrical conductance, magnetic moment and spectral (electronic, infrared, far-infrared, 1H NMR and 13C NMR) data. The ligands and all prepared complexes were assayed for antifungal (Aspergillus niger and Helminthosporium oryzαe) activities. The activities have been correlated with the structures of the complexes. |
