title: Synthesis and spectral investigations of manganese(II), cobalt(II), nickel(II), copper(II) and zinc(II) complexes of new polydentate ligands containing a 1,8-naphthyridine moiety.
abstract: 2-(o-Hydroxyphenyl)-1,8-naphthyridine (HN), 2-(4-hydroxy-6-methylpyran-2-one-3-yl)-1,8-naphthyridine (HMPN) and 2-(benzimidazol-2-yl)-1,8-naphthyridine(BN) react with acetates of Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) to yield metal ion complexes of definite composition. These compounds were characterized by elemental analyses, molar conductivity, magnetic susceptibility measurements, thermal studies, IR, UV-visible, NMR and mass spectral investigations. The complexes are found to have the formulae [M(HN)2(H2O)2], [M(HMPN)2(H2O)2] and [M(BN)2(OAc)2], respectively.
authors.affiliation: Department of Chemistry, Kakatiya University, Warangal - 506 009, India. sj_swamy@yahoo.com
authors.forename: Sreedasyam Jagannatha
authors.initials: SJ
authors.lastname: Swamy
authors.forename: Erra Ram
authors.initials: ER
authors.lastname: Reddy
authors.forename: Devunuri Naga
authors.initials: DN
authors.lastname: Raju
authors.forename: Sunkari
authors.initials: S
authors.lastname: Jyothi
mesh_terms: D003035:Cobalt / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D004578:Electron Spin Resonance Spectroscopy; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy; D008280:Magnetics; D008345:Manganese / Q000737:chemistry*; D013058:Mass Spectrometry; D009287:Naphthyridines / Q000138:chemical synthesis* / Q000737:chemistry*; D009532:Nickel / Q000737:chemistry*; D011522:Protons; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013696:Temperature; D015032:Zinc / Q000737:chemistry*
chemical_list: D008024:Ligands; D009287:Naphthyridines; D011522:Protons; D003035:Cobalt; D008345:Manganese; D003300:Copper; D009532:Nickel; D015032:Zinc