Redox and optically active carbohelicene layers prepared by potentiodynamic polymerization
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Date
2020-02-19
Authors
Hrbáč, Jan
Pavelka, Vit
Crassous, Jeanne
Žádný, Jaroslav
Fekete, Ladislav
Pokorný, Jan
Vanýsek, Petr
Storch, Jan
Vacek, Jan
ORCID
0000-0002-5458-393XAdvisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
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Abstract
This short paper describes the preparation of thin layers based on carbohelicenes, which are inherently chiral polyaromatics existing in the enantiomeric forms P and M. Specifically, [5]-, [6]- and [7]helicene were subjected to redox cycling between -1.5 and 1.5 V vs. ferrocene/ferrocenium at a scan rate of 10 V/s. This way, enantiopure layers exhibiting redox activity were formed on the surfaces of the glassy carbon and ITO electrodes under anoxic and non-aqueous conditions. The properties of the prepared polymer layers were investigated using electrochemistry with Fe/Ru redox probes, circular dischroism, AFM, impedance measurement and Raman spectroscopy. With [6]helicene, the suggested electropolymerization procedure thus represents a proof-of-concept for the preparation of chiral carbonaceous surfaces.
Description
Citation
ELECTROCHEMISTRY COMMUNICATIONS. 2020, vol. 113, issue 4, p. 1-5.
https://www.sciencedirect.com/science/article/pii/S1388248120300400
https://www.sciencedirect.com/science/article/pii/S1388248120300400
Document type
Peer-reviewed
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Published version
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Language of document
en