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.
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.
Swamy
Sreedasyam Jagannatha
SJ
Department of Chemistry, Kakatiya University, Warangal - 506 009, India. sj_swamy@yahoo.com
Reddy
Erra Ram
ER
Raju
Devunuri Naga
DN
Jyothi
Sunkari
S
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*
D008024:Ligands; D009287:Naphthyridines; D011522:Protons; D003035:Cobalt; D008345:Manganese; D003300:Copper; D009532:Nickel; D015032:Zinc