Naslov
Electrochemical characterization of Chelidonic acid and its metal complexes

Autori
Jadreško, Dijana: Kakša, Matija: Popović, Zora

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
16th International Conference on Electroanalysis / Killard, Tony - Bath : UWE, Bristol, 2016

ISBN
978-186-0435-26-3

Skup
16th International Conference on Electroanalysis

Mjesto i datum
Bath, Ujedinjeno Kraljevstvo, 12.06.2016. - 16.06.2016

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Chelidonic acid; metal complexes; square-wave voltammetry

Sažetak
The redox behaviour of biologically occurring compounds and their metal ion chelating activity investigated by electrochemical techniques can provide valuable knowledge on their biological processes. Chelidonic acid (CA) (4-oxo-4-H-pyran-2, 6- dicarboxylidc acid) is a biogenic compound, of natural origin, that shows numerous of pharmacological and therapeutic activities. Due to its excellent coordination properties, in the past few decades, numerous of metal complexes of chelidonic acid were synthesized, structurally characterized and their potential biological activities were investigated. The electrochemical properties of chelidonic acid as well as its in-situ and newly synthesized complexes [Ca(chel)(H2O)3] (1), [Cu3(chel)(H2O)2] (2) and [VO(chel)(H2O)3]∙2H2O (3), at static mercury drop electrode (SMDE), were investigated using square-wave voltammetry (SWV), in aqueous media over a wide pH range. 4-oxo-4-H-pyran- 2, 6-dicarboxylidc acid The results revealed that the reduction of CA is a kinetically controlled electrode reaction, occurring with the transfer of one electron and two protons for 1 < pH < 6, whereas in very alkali media the electron transfer is pH independent, i.e. the mechanism of electro-reduction of CA is proposed. Furthermore, comparing the voltammogram of CA with that of complexes 1 - 3, some valuable information on participation of electroactive group of CA molecule in the coordination of Ca(II), Cu(II) and V(IV) can be obtained.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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