Synthesis and characterization of coumarin-based spiropyran photochromic colorants |
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| Authors: | Chen Jhih-Rong Wong Jen-Bing Kuo Pei-Yu Yang Ding-Yah |
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| Affiliation: | Department of Chemistry, Tunghai University, 181, Taichung-Kang Road Sec. 3, Taichung, Taiwan 407. |
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| 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. |
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