Molecular design of novel non-planar heteropolycyclic fluorophores with bulky substituents: convenient synthesis and solid-state fluorescence characterization |
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Authors: | Ooyama Yousuke Yoshikawa Shintaro Watanabe Shigeru Yoshida Katsuhira |
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Institution: | Department of Material Science, Faculty of Science, Kochi University, Akebono-cho, Kochi 780-8520, Japan. |
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Abstract: | Novel indeno1,2-b]benzo4,5-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. |
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