Electrochemical Characteristics of 4‐oxo‐4H‐pyran‐dicarboxylic Acid (Chelidonic Acid) and some of its Metal Complexes

Electrochemical Characteristics of 4‐oxo‐4H‐pyran‐dicarboxylic Acid (Chelidonic Acid) and some of its Metal Complexes

A few novel metal complexes of chelidonic acid (chelH2), namely [Ca(chel)(H2O)3] (1), [Cu(chel)(H2O)5] ⋅ 2H2O (2) and [VO(chel)(H2O)3] ⋅ 2H2O (3) were prepared, identified by elemental analysis and characterized by electrochemical methods. IR‐spectra and thermal stability in solid state are discusse...

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Veröffentlicht in:Electroanalysis (New York, N.Y.) N.Y.), 2017-02, Vol.29 (2), p.538-547
Hauptverfasser: Jadresko, Dijana, Kaksa, Matija, Popovic, Zora
Format: Artikel
Sprache:eng
Schlagworte:
(cyclic) square-wave voltammetry
Chelidonic acid
Coordination compounds
Electrodes
Graphite
Identification methods
Media
metal complexes
Microparticles
Voltammetry
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Zusammenfassung:A few novel metal complexes of chelidonic acid (chelH2), namely [Ca(chel)(H2O)3] (1), [Cu(chel)(H2O)5] ⋅ 2H2O (2) and [VO(chel)(H2O)3] ⋅ 2H2O (3) were prepared, identified by elemental analysis and characterized by electrochemical methods. IR‐spectra and thermal stability in solid state are discussed as well. The electrochemical characteristics of the free chelidonic acid and its complexes 1–3 were studied by (cyclic) square‐wave voltammetry, on static mercury drop electrode (SMDE) and paraffin‐impregnated graphite electrode (PIGE), in aqueous media over a wide pH range. The reduction of chelidonic acid on SMDE is a kinetically controlled electrode reaction, occurring with the transfer of one electron and two protons for 1
ISSN:1040-0397
1521-4109
DOI:10.1002/elan.201600355