title: Luminescent Superbenzene with Diarylamino and Diarylboryl Groups.
abstract: Dianisylamino donor and dimesitylboryl acceptor substituents were introduced at the 2,11-positions of hexa-peri-hexabonzocoronene (HBC) to demonstrate an effective fluorescent enhancement of HBC as virtually nonfluorescent "superbenzene". The present donor-acceptor substitution replaced the typical weak α-band with an intense intramolecular charge-transfer band in the absorption spectrum, thereby leading to a much larger fluorescence quantum yield (Φf= 0.56 in CH2Cl2) than any other HBC derivatives.
authors.affiliation: Department of Molecular Engineering, Graduate School of Engineering, Kyoto University , Nishikyo-ku, Kyoto 615-8510, Japan.
authors.forename: Ryohei
authors.initials: R
authors.lastname: Kurata
authors.affiliation: Department of Molecular Engineering, Graduate School of Engineering, Kyoto University , Nishikyo-ku, Kyoto 615-8510, Japan.
authors.forename: Kensuke
authors.initials: K
authors.lastname: Kaneda
authors.affiliation: Department of Molecular Engineering, Graduate School of Engineering, Kyoto University , Nishikyo-ku, Kyoto 615-8510, Japan.
authors.forename: Akihiro
authors.identifier: 0000-0002-8698-0032
authors.initials: A
authors.lastname: Ito