Abstract
A multiply photoactive compound has been developed based on quaternized 1,2-bis(4′-pyridyl)ethylene, which exhibits a hierarchical photoreaction by controlling light intensity. Weak ultraviolet light can effectively promote the cycloaddition reaction with fluorescence enhancement, while stronger ultraviolet light can stimulate a complex response of cycloaddition and electron-transfer which shows turn-off luminescence and coloration. Photofacilitated bleaching of the colored products has been observed for the first time in the pyridinium family.
Original language | English |
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Pages (from-to) | 9051-9056 |
Number of pages | 6 |
Journal | Dalton Transactions |
Volume | 47 |
Issue number | 27 |
DOIs | |
Publication status | Published - 2018 |