Alcohol- and acid-causing reversible switching of near-infrared absorption and luminescence in a donor-acceptor conjugated system.
2-Substituted 7-oxo-7,11b-dihydrodibenzochromenilium derivatives (1-ArPyl(+)s) undergo reversible changes in near-infrared absorption when Ar = ferrocenyl, and complete on-off switching of luminescence when Ar = p-tolyl, m-tolyl, or phenyl, by the reaction with methanol or methoxide ion and with acid.
Kondo
Mio
M
Department of Chemistry, School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-Ku, Tokyo, 113-0033, Japan.
Uchikawa
Maai
M
Kume
Shoko
S
Nishihara
Hiroshi
H