Open AccessSynthesis, Structural Investigation and Antimicrobial Properties of Macrocyclic Zinc(II) Complexes with N2O2-Donor Schiff Bases Incorporating 1,2,4-Triazole Ring
Publication year - 2020
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2020.22959
Subject(s) - chemistry , zinc , schiff base , molecule , carbon 13 nmr , 1,2,4 triazole , proton nmr , triazole , polymer chemistry , antimicrobial , metal , stereochemistry , nuclear chemistry , crystallography , organic chemistry
A novel series of nano-sized zinc(II) complexes of type [{Zn(M)(H2O)2}(CH3COO–)2] (where M =macrocyclic ligands) has been synthesized by the in situ reactions of Schiff bases derived from3-(phenyl/substituted phenyl)-4-amino-5-hydrazino-1,2,4-triazoles, salicyldehyde/2-hydroxy-1-naphthaldehyde and 1,4-dibromobutane/1,5-dibromopentane in presence of zinc(II) acetate dihydratein absolute ethanol. The structures of all these zinc(II) complexes were established on the basis ofelemental analyses and spectral data (IR, 1H NMR and 13C NMR). Scanning electron microscopystudies have been carried out to investigate the particle size and surface morphology of a particularcomplex while thermal studies confirm the presence of coordinated water molecules in all the zinc(II)complexes. The antimicrobial effects of all the synthesized complexes were studied against differentspecies of pathogenic fungi and bacteria.