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Elektrochemická studie triazaborinových chromoforů
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SYSNO ASEP 0437193 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Elektrochemická studie triazaborinových chromoforů Title Electrochemical Study of Triazaborine Chromophores Author(s) Mikysek, T. (CZ)
Josefík, F. (CZ)
Ludvík, Jiří (UFCH-W) RID, ORCIDSource Title Sborník přednášek mezinárodní odborné konference XXXIV. Moderní Elektrochemické Metody. - Ústí nad Labem : Best Servis, 2014 / Navrátil Tomáš ; Fojta M. ; Pecková K. - ISBN 978-80-905221-2-1 Pages s. 95-98 Number of pages 4 s. Publication form Print - P Action Moderní Elektrochemické Metody /34./ Event date 19.05.2014-23.05.2014 VEvent location Jetřichovice Country CZ - Czech Republic Event type EUR Language cze - Czech Country CZ - Czech Republic Keywords triazaborines ; chromophore ; square-wave voltammetry Subject RIV CG - Electrochemistry OECD category Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis) Institutional support UFCH-W - RVO:61388955 UT WOS 000353446900020 Annotation Nové organické sloučeniny jsou, v současné dob , v popředí zájmu materiálových chemik , kteří se snaží najít vhodné materiály pro moderní technologie 1. Žádané jsou především „charge-transfer“ chromofory vykazující fluorescenci v pevném stavu, dobrou propustnost sv tla, rozpustnost, tepelnou stabilitu nebo jsou biologicky aktivní 2,3. Description in English This contribution describes a basic electrochemical behaviour of a series of newly synthesized chromophores based on triazaborine core. The main attention has been paid to the investigation of the first oxidation and first reduction process of such compounds using cyclic voltammetry, rotating disk voltammetry and polarography. The oxidation is mostly a two-electron irreversible process, whereas the first reduction is in most cases revesible, involving one-electron. For better understanding of the relationship between the structure and redox properties, the Linear Free Energy relationship (LFER) approach using sigma (para) constants of Hammett type was applied, the oxidation and reduction centers were localized, the difference between E(ox) and E(red) was correlated with the HOMO-LUMO gap and the anomalous cases were elucidated. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2015
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