Affiliation:
1. Jiangxi Science and Technology Normal University
Abstract
Abstract
A novel multi-responsive diarylethene derivative (1O) by linking a fluorescein group has been synthesized. Colorless 1O not only displayed good photochromic property to form cyclization state 1C, but also the 1C having multi-responsive characteristic to Cu2+ and basic stimulations. After Cu2+ was introduced, 1C showed excellent absorption and fluorescent spectra changed upon binding with Cu2+. The color of 1C solution turned from purple to colorless and the corresponding fluorescence color changed from dark to yellow, and the binding stoichiometry of 1C to Cu2+ was 1:1 and the detection limit was 0.11 µM. Moreover, 1C displayed distinctly reversible change on absorption and fluorescent spectra in basic environment, the basic environment can discolor the solution and turn on the fluorescence effect, suggesting that 1C can be used as pH sensor.
Publisher
Research Square Platform LLC
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