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Pregled bibliografske jedinice broj: 330811

Spectrometric study of tautomeric and protonation equilibria of o-vanillin Schiff base derivatives and their complexes with Cu(II)

Galić, Nives; Cimerman, Zvjezdana; Tomišić, Vladislav
Spectrometric study of tautomeric and protonation equilibria of o-vanillin Schiff base derivatives and their complexes with Cu(II) // Spectrochimica Acta Part A - Molecular Spectroscopy, 71 (2008), 4; 1274-1280 doi:10.1016/j.saa.2008.03.029 (međunarodna recenzija, članak, znanstveni)

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Naslov
Spectrometric study of tautomeric and protonation equilibria of o-vanillin Schiff base derivatives and their complexes with Cu(II)

Autori
Galić, Nives ; Cimerman, Zvjezdana ; Tomišić, Vladislav

Izvornik
Spectrochimica Acta Part A - Molecular Spectroscopy (1386-1425) 71 (2008), 4; 1274-1280

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Schiff bases ; o-vanillin ; aminopyridine ; spectrophotometry ; spectrofluorimetry ; tautomeric constants ; protonation constants ; copper(II) complexes

Sažetak
Electronic absorption and emission properties of a series of Schiff bases derived from 2-hydroxy-3-methoxybenzaldehyde and 2-aminopyridine, 2, 3-diaminopyridine, 2, 6-diaminopyridine, or 3-aminomethylpyridine were studied in solvents of different polarities. The interconversion of the enolimine to the ketoamine tautomeric form was observed for compound 1, 6-methoxy-2-(3-pyridylmethyliminomethyl)phenol, and the corresponding equilibrium constant was estimated in several solvents. Protonation constants of all the investigated compounds were determined spectrophotometrically in the methanol/water 1/4 system. The effect of copper(II) ions on absorption and on the emission spectra of these ligands was examined in the buffered dioxane/water 1/1 system (pH = 5.8). Strong complexation of Cu(II) and formation of a 1:1 complex were observed for the bis-Schiff base derived from 2, 3-diaminopyridine. The complex of copper(II) with compound 1 was isolated and characterized by elemental analysis, magnetic susceptibility measurement, UV-Vis and IR spectrometry.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA

Projekti:
MZOS-119-1191342-1083 - Interakcije i dizajn bioaktivnih molekula (Novak, Predrag, MZOS ) ( CroRIS)
MZOS-119-1191342-2960 - Elektroliti i koordinacijske reakcije u otopini (Tomišić, Vladislav, MZOS ) ( CroRIS)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Nives Galić (autor)

Avatar Url Vladislav Tomišić (autor)

Avatar Url Zvjezdana Cimerman (autor)

Poveznice na cjeloviti tekst rada:

doi www.sciencedirect.com

Citiraj ovu publikaciju:

Galić, Nives; Cimerman, Zvjezdana; Tomišić, Vladislav
Spectrometric study of tautomeric and protonation equilibria of o-vanillin Schiff base derivatives and their complexes with Cu(II) // Spectrochimica Acta Part A - Molecular Spectroscopy, 71 (2008), 4; 1274-1280 doi:10.1016/j.saa.2008.03.029 (međunarodna recenzija, članak, znanstveni)
Galić, N., Cimerman, Z. & Tomišić, V. (2008) Spectrometric study of tautomeric and protonation equilibria of o-vanillin Schiff base derivatives and their complexes with Cu(II). Spectrochimica Acta Part A - Molecular Spectroscopy, 71 (4), 1274-1280 doi:10.1016/j.saa.2008.03.029.
@article{article, author = {Gali\'{c}, Nives and Cimerman, Zvjezdana and Tomi\v{s}i\'{c}, Vladislav}, year = {2008}, pages = {1274-1280}, DOI = {10.1016/j.saa.2008.03.029}, keywords = {Schiff bases, o-vanillin, aminopyridine, spectrophotometry, spectrofluorimetry, tautomeric constants, protonation constants, copper(II) complexes}, journal = {Spectrochimica Acta Part A - Molecular Spectroscopy}, doi = {10.1016/j.saa.2008.03.029}, volume = {71}, number = {4}, issn = {1386-1425}, title = {Spectrometric study of tautomeric and protonation equilibria of o-vanillin Schiff base derivatives and their complexes with Cu(II)}, keyword = {Schiff bases, o-vanillin, aminopyridine, spectrophotometry, spectrofluorimetry, tautomeric constants, protonation constants, copper(II) complexes} }
@article{article, author = {Gali\'{c}, Nives and Cimerman, Zvjezdana and Tomi\v{s}i\'{c}, Vladislav}, year = {2008}, pages = {1274-1280}, DOI = {10.1016/j.saa.2008.03.029}, keywords = {Schiff bases, o-vanillin, aminopyridine, spectrophotometry, spectrofluorimetry, tautomeric constants, protonation constants, copper(II) complexes}, journal = {Spectrochimica Acta Part A - Molecular Spectroscopy}, doi = {10.1016/j.saa.2008.03.029}, volume = {71}, number = {4}, issn = {1386-1425}, title = {Spectrometric study of tautomeric and protonation equilibria of o-vanillin Schiff base derivatives and their complexes with Cu(II)}, keyword = {Schiff bases, o-vanillin, aminopyridine, spectrophotometry, spectrofluorimetry, tautomeric constants, protonation constants, copper(II) complexes} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE

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