Molecular design of novel non-planar heteropolycyclic fluorophores with bulky substituents: convenient synthesis and solid-state fluorescence characterization.
Novel indeno[1,2-b]benzo[4,5-e]pyran-11-one-type fluorophores exhibiting intense solid-state fluorescence were conveniently synthesized and the relation between their solid-state photophysical properties and the X-ray crystal structures were investigated, which demonstrates that non-planar structures with sterical hindered substituents prevent the fluorophores from forming short pi-pi contacts causing fluorescence quenching in the solid state.
Ooyama
Yousuke
Y
Department of Material Science, Faculty of Science, Kochi University, Akebono-cho, Kochi 780-8520, Japan.
Yoshikawa
Shintaro
S
Watanabe
Shigeru
S
Yoshida
Katsuhira
K