Development of highly fluorescent photochromic material with high fatigue resistance |
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| Authors: | Yong-Chul Jeong Eunkyoung Kim |
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| Affiliation: | a College of Environment and Applied Chemistry, and Institute of Natural Science, Kyung Hee University, Yongin 449-701, Republic of Korea
b Department of Chemical Engineering, Yonsei University, Seoul 120-749, Republic of Korea |
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| Abstract: | Efficient and reversible fluorescence modulation with excellent photo-stability was achieved from a sulfone form of diacetyl diarylethene, 1,2-bis(6-acetyl-2-methyl-1-benzothiophene-1,1-dioxide-3-yl)perfluorocyclopentene (DABTFO4). The DABTFO4 emits strong fluorescence in the closed-ring isomer even in the absence of extra fluorophores. The fluorescence quantum yield, fatigue resistance, and photo-cyclization yield of DABTFO4 were significantly improved compared with the unsubstituted 1,2-bis(2-methyl-1-benzothiophene-1,1-dioxide-3-yl)perfluorocyclopentene (BTFO4) and the sulfide analogue, 1,2-bis(6-acetyl-2-methyl-1-benzothiophene-3-yl)perfluorocyclopentene (DABTF6). |
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| Keywords: | Photochromic reaction Diarylethene Fluorescence modulation Fatigue resistance |
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