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Two-dimensional condensation of 5-fluorocytosine at the mercury electrode
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SYSNO ASEP 0440812 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Two-dimensional condensation of 5-fluorocytosine at the mercury electrode Author(s) Fojt, Lukáš (BFU-R) RID, ORCID
Doneux, T. (BE)
Vetterl, Vladimír (BFU-R)Number of authors 3 Source Title Electrochimica acta. - : Elsevier - ISSN 0013-4686
Roč. 73, SI (2012), s. 141-144Number of pages 4 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords 2D condensation ; Hanging mercury drop electrode ; 5-Fluorocytosine Subject RIV BO - Biophysics R&D Projects GAP205/10/2378 GA ČR - Czech Science Foundation (CSF) LC06035 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support BFU-R - RVO:68081707 UT WOS 000305261100022 DOI https://doi.org/10.1016/j.electacta.2011.12.061 Annotation Adsorption and two-dimensional (2D) condensation of 5-fluotocytosine on hanging mercury drop electrode is studied in this work. 5-fluorocytosine is an important derivative of cytosine which is widely used in pharmacology. The influence of concentration, temperature pH and electrolyte composition on the 2D condensation of 5-fluorocytosine was investigated by differential capacitance measurements. Three capacitance pits associated with the formation of 2D compact layers are evidenced. One film, formed at potential slightly negative from the potential of zero charge of the electrode, involves both neutral and protonated 5-fluorocytosine molecules. At highly negatively charged electrodes, dipole-induced orientation of 5-fluorocytosine leads to the formation of two additional 2D layers. One of them is found to result from the interaction of 5-fluorocytosine with acetic acid, present in the buffer electrolyte. Workplace Institute of Biophysics Contact Jana Poláková, polakova@ibp.cz, Tel.: 541 517 244 Year of Publishing 2015
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