Structural Characterization and Biocidal Studies of Some Nickel(II) Macrocyclic Complexes

Abstract

Two new macrocyclic complexes with formulae Ni(IDADH]
(BF₄)₂ and Ni[TDPDH](BF₄)₂ {where [IDADH] = di-phenyldiacetic
acid-N-imino diacetyl dihydtazone and (TDPDH)
= diphcnyl diacetic acid-N-thio dipropionic acid dihydtazonc have
been synthesized. These complexes have been scteened for their
antibacterial and antifungal activities against certain specified
microbial strains. viz ., bacterial strains S. auerus and E. coli and
fungal strains A. niger and C. albicans. These complexes have been
characterized using molar conductances, magnetic studies, elemental
analysis and spectral (lR and electronic) studies. The complexes
have been found to have octahedral structures. Both the complexes
show greater biological activity than the ligand fragments, the activity
effect being more against bacterial species and slightly less
against fungal strains.