Helically chiral functionalized [6]helicene: Synthesis, optical resolution, and photophysical properties

Publication date: July 2018Source: Comptes Rendus Chimie, Volume 21, Issue 7Author(s): Nesrine Hafedh, Faouzi Aloui, Vincent Dorcet, Houcine BarhoumiAbstractA short and efficient synthetic pathway leading to a new chiral π-conjugated system is reported. The X-ray structure of the target compound was determined and showed a helical conformation. Its resolution was successfully accomplished, leading to two enantiomers in high optical purity, and their chiroptical properties were examined experimentally. The photophysical properties of the organic material were also evaluated, showing an emission in the visible region, and HOMO and LUMO levels have been estimated experimentally, demonstrating an electrochemical band gap of 2.37 eV.Graphical abstractSynthesis, enantiomeric resolution, and photophysical properties of a new S-containing hexacyclic helicene.

Source: Comptes Rendus Chimie - July 11, 2018 Category: Chemistry Source Type: research