Synthesis, Physicochemical, and Antimicrobial Screening Studies of Complexes of Co(II), Ni(II), Cu(II), and Zn(II) with 18-membered Schiff Base Octaazamacrocyclic Ligand
摘要:
A [2 + 2] condensation reaction between 1,8-diaminonaph-thalene and N,N'-diacetylhydrazine in 1:1 molar ratio in methanol resulted in a novel Schiff base macrocyclic ligand, (L): 7,9:16,18-dinaphthyl-1,3,4,6,10,12,13,15-octaazacyclooctadecane-1,5,10,14-tetraene. Metal complexes have been synthesized by the reaction of L with the corresponding metal salts. The results of elemental analyses, ESI-mass, and Job's method ascertain their stoichiometry while the spectral data obtained from 1H and 13C NMR, and IR confirmed their bonding features. However, the stereochemistry was inferred from the UV-visible, EPR, and magnetic moment studies. The ligand and its complexes were screened in vitro against gram positive bacteria, gram negative bacteria, and fungi.
Synthesis, Physicochemical, and Antimicrobial Screening Studies of Complexes of Co(II), Ni(II), Cu(II), and Zn(II) with 18-membered Schiff Base Octaazamacrocyclic Ligand
摘要:
A [2 + 2] condensation reaction between 1,8-diaminonaph-thalene and N,N'-diacetylhydrazine in 1:1 molar ratio in methanol resulted in a novel Schiff base macrocyclic ligand, (L): 7,9:16,18-dinaphthyl-1,3,4,6,10,12,13,15-octaazacyclooctadecane-1,5,10,14-tetraene. Metal complexes have been synthesized by the reaction of L with the corresponding metal salts. The results of elemental analyses, ESI-mass, and Job's method ascertain their stoichiometry while the spectral data obtained from 1H and 13C NMR, and IR confirmed their bonding features. However, the stereochemistry was inferred from the UV-visible, EPR, and magnetic moment studies. The ligand and its complexes were screened in vitro against gram positive bacteria, gram negative bacteria, and fungi.