title: The stereochemical diversity of a new SNONS binucleating ligand towards 3d metal ions.
abstract: A new binucleating ligand containing phenoxide as an endogenous bridging group, 2,6-diformyl-p-cresol bis(2-furanthiocarboxyhydrazone) and its binuclear Co(II), Ni(II), Cu(II) and Zn(II) complexes with chloride ion as an exogenous bridge, have been obtained. The complexes were characterized by elemental analysis, molar conductivities, magnetic moment measurements at room temperature, electronic, IR, 1H-NMR, EPR, FAB spectral studies and thermal data. The copper complex assumes a tetranuclear structure composed of two binuclear units related by a center of symmetry. The dimeric nature of copper(II) complex is supported by FAB. This complex is EPR silent. Room temperature magnetic moment reveals the operation of a significant antiferromagnetic spin exchange between the metal centers. Ligand and its copper and zinc complexes exhibit fluorescence at room temperature in DMF. All the compounds show an appreciable antimicrobial activity.
authors.affiliation: Department of Chemistry, Karnatak University, Dharwad, India.
authors.forename: Anil D
authors.initials: AD
authors.lastname: Naik
authors.forename: Satish M
authors.initials: SM
authors.lastname: Annigeri
authors.forename: Umesh B
authors.initials: UB
authors.lastname: Gangadharmath
authors.forename: Vidyanand K
authors.initials: VK
authors.lastname: Revankar
authors.forename: Vinayak B
authors.initials: VB
authors.lastname: Mahale
mesh_terms: D004563:Electrochemistry; D006358:Hot Temperature; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy; D008670:Metals / Q000737:chemistry; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D016339:Spectrometry, Mass, Fast Atom Bombardment; D017550:Spectroscopy, Fourier Transform Infrared; D013237:Stereoisomerism
chemical_list: D008024:Ligands; D008670:Metals; D009942:Organometallic Compounds