A new unsymmetrical photochromic diarylethene, 1-(2-methyl-5-phenyl-3-thienyl)-2-[2- methyl-5-(3-trifluoromethylphenyl)-3-thienyl] perfluorocyclopentene (1a), was synthesized and its structure was determined by single-crystal X-ray diffraction analysis. Its optical and electrochemical properties, including photochromic reactivity both in solution and in the solid state (PMMA film and the single-crystalline phase), fluorescence and electrochemical ...
![3-bromo-2-methyl-5-[3-(trifluoromethyl)phenyl]thiophene Structure](https://image.chemsrc.com/caspic/025/864362-75-4.png)