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Journal articles
Redox and optically active carbohelicene layers prepared by potentiodynamic polymerization
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.
https://hal-univ-rennes1.archives-ouvertes.fr/hal-02536593
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Submitted on : Tuesday, January 19, 2021 - 10:14:23 AM
Last modification on : Wednesday, April 7, 2021 - 3:18:14 PM
Contributor : Hal-Ur1 Référent <>
Submitted on : Tuesday, January 19, 2021 - 10:14:23 AM
Last modification on : Wednesday, April 7, 2021 - 3:18:14 PM
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