title: Characterization and Antimicrobial Activity of Erbium(III) Complexes of C-3 Substituted 2-hydroxy-1,4-naphthalenedione-1-oxime Derivatives.
abstract: Erbium(III) complexes of 2-hydroxy-l,4-naphthalenedione-1-oxime and its C-3 substituted derivatives are synthesized and characterized by elemental analysis, thermogravimetric analysis, infrared spectroscopy, magnetic susceptibility measurements 2-hydroxy-1,4-naphthalenedione-1-oxime derivatives are analysed using (1)H and (13)C NMR spectroscopy. The molecular composition of the synthesized complexes is found to be [ML(3)(H(2)O)(2)]. The antimicrobial activity of these complexes is determined by well diffusion method against the target microorganisms- Staphylococcus aureus, Xanthomonas campestris, Pseudomonas aeruginosa, Candida albicans and Aspergillus niger. The antimicrobial activities of 2- hydroxy-1,4-naphthalenedione-1-oximes and their complexes are compared. It is observed that 2-hydroxy-1,4-naphthalenedione-l-oximes exhibit higher antifungal activity as compared to antibacterial activity. These activities are reduced upon complexation of these oximes with Erbium.
authors.affiliation: Department of Chemistry University of Pune Pune Pune-411 007 India.
authors.forename: S B
authors.initials: SB
authors.lastname: Jagtap
authors.forename: N N
authors.initials: NN
authors.lastname: Patil
authors.forename: B P
authors.initials: BP
authors.lastname: Kapadnis
authors.forename: B A
authors.initials: BA
authors.lastname: Kulkarni