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Photoelectron spectroscopy of natural products: Hydroxy-flavones and naringenin


Kovač, Branka; Kazazić, Snježana; Biliškov, Nikola; Klasinc, Leo; Novak, Igor
Photoelectron spectroscopy of natural products: Hydroxy-flavones and naringenin // Journal of electron spectroscopy and related phenomena, 185 (2012), 3-4; 71-76 doi:10.1016/j.elspec.2012.02.003 (međunarodna recenzija, članak, znanstveni)


Naslov
Photoelectron spectroscopy of natural products: Hydroxy-flavones and naringenin

Autori
Kovač, Branka ; Kazazić, Snježana ; Biliškov, Nikola ; Klasinc, Leo ; Novak, Igor

Izvornik
Journal of electron spectroscopy and related phenomena (0368-2048) 185 (2012), 3-4; 71-76

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

Ključne riječi
Flavonoids ; photoelectron spectroscopy ; radical scavenging activity ; antioxidant activity

Sažetak
The electronic structures of 3- and 5-hydroxy-flavones, naringenin and 3-bromochromone have been studied by UV photoelectron spectroscopy (UPS) and high-level Green’s function (GF)calculations. Our UPS data show that hydroxyl substitution strongly influences the electronic structures of flavones and flavanones which in turn influences their biological (radical scavenging or antioxidant) activity. In particular, the experimental antioxidant activity correlates with HOMO -ionization energies.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekt / tema
098-0982915-2945 - Spektroskopija, kemijska svojstva i reakcije biološki aktivnih molekula (Branka Kovač, )

Ustanove
Institut "Ruđer Bošković", Zagreb

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


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