title: Synthesis, characterization, EXAFS investigation and antibacterial activities of new ruthenium(III) complexes containing tetradentate Schiff base.
abstract: A series of new hexa-coordinated ruthenium(III) complexes of the type [Ru(X)(2-atmp-ba)(EPh3)] (where H2-2-atmp-ba=N,N'-bis(2-aminothiophenol)benzoylacetone; X=Cl or Br; E=P or As) have been prepared by reacting [RuX3(EPh3)3] (where X=Cl or Br; E=P or As) with tetradentate Schiff base ligand (H2-2-atmp-ba) in 1:1 molar ratio. The complexes have been characterized by elemental analyses, Infra red, electronic, electron paramagnetic resonance spectroscopy and cyclic voltammetry. In order to confirm the coordination and structure of the complexes extended X-ray absorption fine structure spectroscopy (EXAFS) studies have been carried out. Based on the above data, an octahedral structure has been confirmed for the complexes. The new complexes were also screened for their antibacterial properties.
authors.affiliation: Department of Chemistry, Bharathiar University, Coimbatore 641 046, India.
authors.forename: R
authors.initials: R
authors.lastname: Prabhakaran
authors.forename: A
authors.initials: A
authors.lastname: Geetha
authors.forename: M
authors.initials: M
authors.lastname: Thilagavathi
authors.forename: R
authors.initials: R
authors.lastname: Karvembu
authors.forename: Venkata
authors.initials: V
authors.lastname: Krishnan
authors.forename: Helmut
authors.initials: H
authors.lastname: Bertagnolli
authors.forename: K
authors.initials: K
authors.lastname: Natarajan
mesh_terms: D015502:Absorptiometry, Photon / Q000379:methods*; D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D004578:Electron Spin Resonance Spectroscopy; D006090:Gram-Negative Bacteria / Q000187:drug effects; D008024:Ligands; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D012428:Ruthenium / Q000737:chemistry*; D012545:Schiff Bases / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D013055:Spectrophotometry, Infrared
chemical_list: D000900:Anti-Bacterial Agents; D008024:Ligands; D012545:Schiff Bases; D012428:Ruthenium