Turkish Journal of Chemistry
Abstract
Four new fulgimides possessing a fluorescent coumarin unit were synthesized from the corresponding fulgides, and their photochromic as well as fluorescence properties were investigated. The open-ring forms of coumarin fulgimides were found to exhibit fluorescence in the visible region. Upon exposure to UV light, the fulgimides were transformed into the nonfluorescent closed-ring forms, which can be reverted to the initial fluorescent open-ring forms on exposure to visible light. The efficiency of quenching of fluorescence was as high as 95% at the photostationary state of UV irradiation.
DOI
10.3906/kim-2003-31
Keywords
Photochromism, fulgide, fulgimide, coumarin, fluorescence switch
First Page
1031
Last Page
1042
Recommended Citation
ALLY, K. N, ÖZTÜRK, L, & KÖSE, M (2020). Photochromic and fluorescence properties of coumarin fulgimides. Turkish Journal of Chemistry 44 (4): 1031-1042. https://doi.org/10.3906/kim-2003-31
