Synthesis and Property of a New Photochromic Diarylethene Bearing Thiophene and a Six-Membered Aryl Unit
A novel photochromic diarylethene based on thiophene and a six-membered aryl moieties 1-[(2-methyl-5-(p-methylphenyl)-3-thienyl)]-2-[(2-trifluoromethylphenyl)]perfluorocyclopentene(1a) has been synthesized. Its properties, including photochromic behavior and fluorescent properties, have been investigated. The results showed that this compound exhibited reversible photochromism, changing from colorless to purple after irradiation with UV light both in solution and in PMMA amorphous film. The fluorescence intensity decreased along with the increase of solution concentration. The diarylethene exhibited relatively strong fluorescence at different solvent.
Huaiying Zhou, Tianlong Gu, Daoguo Yang, Zhengyi Jiang, Jianmin Zeng
H. L. Liu et al., "Synthesis and Property of a New Photochromic Diarylethene Bearing Thiophene and a Six-Membered Aryl Unit", Advanced Materials Research, Vols. 197-198, pp. 448-451, 2011