title: Synthesis, structural, spectral, thermal and antimicrobial studies of palladium(II), platinum(II), ruthenium(III) and iridium(III) complexes derived from N,N,N,N-tetradentate macrocyclic ligand.
abstract: Palladium(II), platinum(II), ruthenium(III) and iridium(III) complexes of general stoichiometry [PdL]Cl(2), [PtL]Cl(2), [Ru(L)Cl(2)]Cl and [Ir(L)Cl(2)]Cl are synthesized with a tetradentate macrocyclic ligand, derived from 2,6-diaminopyridine with 3-ethyl 2,4-pentanedione. Ligand was characterized on the basis of elemental analyses, IR, mass, and (1)H NMR and (13)C NMR spectral studies. All the complexes were characterized by elemental analyses, molar conductance measurements, magnetic susceptibility measurements, IR, mass, electronic spectral techniques and thermal studies. The value of magnetic moments indicates that all the complexes are diamagnetic except Ru(III) complex which shows magnetic moments corresponding its one unpaired electron. The macrocyclic ligand and all its metal complexes were also evaluated in vitro against some plant pathogenic fungi and bacteria to assess their biocidal properties.
authors.affiliation: Department of Chemistry, Zakir Husain College (University of Delhi), New Delhi, India.
authors.forename: Soni
authors.initials: S
authors.lastname: Rani
authors.forename: Sumit
authors.initials: S
authors.lastname: Kumar
authors.forename: Sulekh
authors.initials: S
authors.lastname: Chandra
mesh_terms: D000890:Anti-Infective Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D004583:Electrons; D005658:Fungi / Q000187:drug effects; D007495:Iridium / Q000737:chemistry / Q000494:pharmacology; D008024:Ligands; D047028:Macrocyclic Compounds / Q000138:chemical synthesis* / Q000737:chemistry* / Q000494:pharmacology; D013058:Mass Spectrometry; D019216:Metals, Heavy / Q000138:chemical synthesis* / Q000737:chemistry* / Q000494:pharmacology; D008826:Microbial Sensitivity Tests; D010165:Palladium / Q000737:chemistry / Q000494:pharmacology; D010984:Platinum / Q000737:chemistry / Q000494:pharmacology; D012428:Ruthenium / Q000737:chemistry / Q000494:pharmacology; D013055:Spectrophotometry, Infrared; D013696:Temperature
chemical_list: D000890:Anti-Infective Agents; D008024:Ligands; D047028:Macrocyclic Compounds; D019216:Metals, Heavy; D007495:Iridium; D010984:Platinum; D010165:Palladium; D012428:Ruthenium