Abstract
Photochromic molecules are potentially applicable to the optical module for molecular switches and sensors. Herein, we report on a novel photochromic vinylpyrene-substituted 2’-deoxyguanosine analogue (VPy G) that undergoes the reversible E–Z isomerization accompanied with a unique “on–off” fluorescence switching. The highly fluorescent E-isomer was rapidly converted to the non-fluorescent Z-isomer under visible light irradiation (>420 nm). Conversely, when the Z-isomer was illuminated with UV-light (∼365 nm), Z- to E-isomerization also took place rapidly. Furthermore, such reversible photoisomerization was repeated more than 10 times without any side reaction. The drastic and reversible fluorescence change of the photochromic guanine base VPy G might be useful for molecular devices.
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Matsumoto, K., Saito, Y., Saito, I., Morii, T. (2010). Light Energy Induced Fluorescence Switching Based on Novel Photochromic Nucleosides. In: Yao, T. (eds) Zero-Carbon Energy Kyoto 2009. Green Energy and Technology. Springer, Tokyo. https://doi.org/10.1007/978-4-431-99779-5_29
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DOI: https://doi.org/10.1007/978-4-431-99779-5_29
Publisher Name: Springer, Tokyo
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