title: Phenoxide bridged tetranuclear Co(II), Ni(II), Cu(II) and Zn(II) complexes: electrochemical, magnetic and antimicrobial studies.
abstract: Phenoxide bridged later first row transition metal(II) complexes have been prepared by the interaction of later 3d transition metal(II) chlorides with tetranucleating compartmental Schiff base ligand system derived from 2,6-diformyl-4-methylphenol, p-phenylenediamine and 2-hydrazinobenzothiazole. Ligand and complexes were characterized by analytical, spectral (IR, UV-visible, ESR, FAB-mass and fluorescence), magnetic and thermal studies. All complexes are found to have octahedral geometry. The mutual influence of metal centres in terms of cooperative effect on the electronic, magnetic, electrochemical and structural properties was investigated. The Schiff base and its complexes have been screened for their antibacterial (against Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa) and antifungal activities (against Aspergillus niger, and Candida albicans).
authors.affiliation: Department of Chemistry, Karnatak University, Pavate Nagar, Dharwad 580 003, Karnataka, India.
authors.forename: Anupama
authors.initials: A
authors.lastname: Kamath
authors.forename: Naveen V
authors.initials: NV
authors.lastname: Kulkarni
authors.forename: Priya P
authors.initials: PP
authors.lastname: Netalkar
authors.forename: Vidyanand K
authors.initials: VK
authors.lastname: Revankar
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D003035:Cobalt / Q000737:chemistry / Q000378:metabolism; D056831:Coordination Complexes / Q000737:chemistry / Q000494:pharmacology; D003300:Copper / Q000737:chemistry / Q000378:metabolism; D004563:Electrochemistry; D004578:Electron Spin Resonance Spectroscopy; D009682:Magnetic Resonance Spectroscopy; D008280:Magnetics; D009532:Nickel / Q000737:chemistry / Q000378:metabolism; D009942:Organometallic Compounds / Q000737:chemistry* / Q000494:pharmacology*; D019800:Phenol / Q000737:chemistry* / Q000378:metabolism; D012545:Schiff Bases / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D028561:Transition Elements / Q000737:chemistry* / Q000378:metabolism; D015032:Zinc / Q000737:chemistry / Q000378:metabolism
chemical_list: D000900:Anti-Bacterial Agents; D056831:Coordination Complexes; D009942:Organometallic Compounds; D012545:Schiff Bases; D028561:Transition Elements; D019800:Phenol; D003035:Cobalt; D003300:Copper; D009532:Nickel; D015032:Zinc