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Paper | Regular issue | Vol 102, No. 3, 2021, pp.451-464
Published online, 27th January, 2021
DOI: 10.3987/COM-20-14372
The Electronic Structure of Thioxanthylium Scaffolds

Koki Hirano, Akira Yasuda, Takahiro Sasamori, Kosei Shioji, Kentaro Okuma, and Noriyoshi Nagahora*

*Department of Chemistry, Faculty of Science, Fukuoka University, Nanakuma 8-19-1, Jonan-ku, Fukuoka, Fukuoka 814-0180, Japan


A new series of thioxanthylium trifluoromethanesulfonates has been synthesized via a trifluoromethanesulfonic-acid-induced cyclization of thioether precursors. The electronic structure of these thioxanthylium salts were determined by UV−vis absorption spectroscopy, and theoretically investigated by density functional theory calculations.