THE STUDY OF 6 – BENZYLAMINOPURINE AND ITS DERIVATIVES BY ELECTROCHEMICAL AND SPECTRAL METHODS

• Authors: PILAŘOVÁ Iveta; HOLUBOVÁ Sylvie; BALCAROVÁ Zdeňka; SERRANO Nuria; TRNKOVÁ Libuše
• Year of publication: 2011
• Type: Article in Proceedings
• Conference: XI. Pracovní setkání fyzikálních chemiků a elektrochemiků
• MU Faculty or unit: Faculty of Science
• Field: Physical chemistry and theoretical chemistry
• Keywords: 6-benzylaminopurine;cytokinins;elimination voltammetry;protonation constants;linear sweep voltammetry
• Description: Electrochemical and spectral behaviors of 6 – benzylaminopurine (6 – BAP) and its chlorine and methoxy derivatives have been studied by voltammetry, potentiometry and spectrophotometry. Using linear sweep voltammetry (LSV) in connection with a mercury electrode the reduction peaks of BAPs were observed. On the other hand, using elimination voltammetry with linear scan (EVLS) the differences in the reduction processes of derivatives studied were found. The EVLS confirmed the electron transfer in an adsorbed state. The pH value of water-methanol solutions was chosen according to the protonation constants of BAPs determined by both potentiometric and UV-Vis spectrophotometric titrations. The effect of methanol content and temperature on pKa values of 6-BAP was monitored.

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