Abstract: | Palladium(II) complexes of type [Pd(L)Cl2] [where, L?=?benzaldehyde-1,1-diphenyl-2-thiohydrazone (L1), salicylaldehyde-1,1-diphenyl-2-thiohydrazone (L2), acetaphenone-1,1-diphenyl-2-thiohydrazone (L3) and cyclohexanone-1,1-diphenyl-2-thiohydrazone (L4)] have been synthesized. The thiohydrazones can exist as thione-thiol tautomers and coordinate as a bidentate N–S ligand. The ligands are found to be monobasic bidentate. The complexes have been characterized by elemental analysis, IR, mass, electronic, 1H NMR spectroscopic studies. In vitro antifungal studies against fungi Aspergillus fumigatus, Aspergillus flavus and Aspergillus niger for some complexes have also been carried out. |