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).
Original language | English |
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Pages (from-to) | 5855-5861 |
Number of pages | 7 |
Journal | Tetrahedron |
Volume | 62 |
Issue number | 25 |
DOIs | |
Publication status | Published - 2006 Jun 19 |
Bibliographical note
Funding Information:This research was supported by Korea Research Foundation (KRF-2005-005-J00801) (K.H.A., S.I.Y.), and the Ministry of Science and Technology, Korea, through the Nanotechnology Development Program (E.K.).
All Science Journal Classification (ASJC) codes
- Biochemistry
- Drug Discovery
- Organic Chemistry