Synthesis and Characterization of Coumarin-Based Spiropyran Photochromic Colorants
- 1 October 2008
- journal article
- Published by American Chemical Society (ACS) in Organic Letters
- Vol. 10 (21), 4823-4826
- https://doi.org/10.1021/ol8018902
Abstract
Two coumarin-based spiropyran derivatives were synthesized and characterized in two steps to explore their photochromic properties. Both prepared compounds are sensitive to UV light and change colors upon irradiation. The resulting photogenerated zwitterions revert to the original compounds while being heated. A new family of organic photochromic colorants is introduced.Keywords
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