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
| Autor: | Erra Ram Reddy, Devunuri Naga Raju, Sunkari Jyothi, Sreedasyam Jagannatha Swamy |
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| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Denticity
Magnetic Resonance Spectroscopy Spectrophotometry Infrared Inorganic chemistry Pharmaceutical Science chemistry.chemical_element Molar conductivity Ligands Medicinal chemistry Mass Spectrometry Article Analytical Chemistry Coordination complex transition metal complexes lcsh:QD241-441 chemistry.chemical_compound Magnetics Transition metal lcsh:Organic chemistry Nickel Amide Drug Discovery 8-Naphthyridine Moiety polydentate ligands Physical and Theoretical Chemistry Naphthyridines chemistry.chemical_classification Manganese spectral investigations of metal complexes Organic Chemistry Electron Spin Resonance Spectroscopy Temperature Nuclear magnetic resonance spectroscopy Cobalt Zinc chemistry Chemistry (miscellaneous) Molecular Medicine Spectrophotometry Ultraviolet Protons Copper |
| Zdroj: | Molecules, Vol 11, Iss 12, Pp 1000-1008 (2006) Molecules; Volume 11; Issue 12; Pages: 1000-1008 |
| ISSN: | 1420-3049 |
| Popis: | 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 (H 2 O) 2 ], [M( HMPN ) 2 (H 2 O) 2 ] and [M( BN ) 2 (OAc) 2 ], respectively. Keywords: 1,8-Naphthyridine, polydentate ligands, transition metal complexes, spectral investigations of metal complexes Introduction Interest in coordination chemistry is increasing continuously with the preparation of organic ligands containing a variety of donor groups [1-3] and it is multiplied manyfold when the ligands have biological importance [4,5]. As part of our research, we have developed a number of polydentate ligands containing amide groups [6-11]. 1,8-Naphthyridines constitute a group of very important |
| Databáze: | OpenAIRE |
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