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Fluorescence properties of indolenine semi-squarylium dyes |
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| Authors: | Masaki Matsui Toshihiro ShibataMasato Fukushima Yasuhiro KubotaKazumasa Funabiki |
| Institution: | Department of Materials Science and Technology, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan |
| Abstract: | 3-Butoxy-4-(1-butyl-3,3-dimethyl-3H-indol-2-ylidenemethyl)-3-cyclobut-1,2-dione exhibited the most intense florescence at fluorescence maxima 536 and 563 nm with fluorescence quantum yield 0.21 among any indolenine semi-squarylium dyes in the crystalline form due to the isolated dimer-type molecular packing and its suitable melting point. This compound showed aggregation-induced emission enhancement. |
| Keywords: | Fluorescence Indolenine semi-squarylium dye Solid-state fluorescence Single X-ray crystallography Aggregation-induced emission enhancement |
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