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National Repository of Grey Literature 2 records found  Search took 0.02 seconds. 
Potential-driven On/Off Switch Strategy for the Electrosynthesis of [7]Helicene-derived Polymers.
 Žádný, Jaroslav ; Storch, Jan ; Strašák, Tomáš ; Církva, Vladimír ; Hrbáč, J. ; Fekete, Ladislav ; Pokorný, Jan ; Bulíř, Jiří ; Vacek, J.
3-([7]H elicen-9-yl)-thiophene hybrid monomer was electrooxidized in acetonitrile by cyclic voltammetry with anodic potential limits of +1.5 V or +2.5 V, resulting in a conductive and non-conductive polymer, respectively. The electrochemical findings were supplemented by microscopy investigations; UV-Vis, fluorescence and vibrational spectroscopies, ellipsometry measurements and computational chemistry. The electrodeposited polymers could be used for the further development of materials applicable in organic electronics and sensing technologies.
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Plný tet: SKMBT_C22017111612582 - Download fulltextPDF
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A Short Overview of the Electrochemistry of Helical Polyaromatics.
 Vacek, J. ; Hrbáč, J. ; Zatlouklová, M. ; Storch, Jan
Here we describe the electrochemical behavior of a group of polyaromatics designated helicenes. These compounds are finding many applications in optoelectronics, catalysis and chiral separation. Thus it is important to investigate the electrochemical and optical behavior of helicenes with respect to improving their application potential and our knowledge of strategies for their surfaces immobilization. Electrochemical analyses were performed in acetonitrile and in aqueous media with glassy carbon and indium tin oxide electrodes. Specifically, [n]helicenes and their salts 1-buty1-3-(2-methy1[6]heliceny)-immidazolium bromide and 3-([7]helicene-9-y1)thiophene were investigated, the application of acquired electrochemical data is disussed, especially in terms of optoelectronics and the construction of semi-conductive devices.
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Plný tet: Jetrichovice 2016 - Download fulltextPDF
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