Synthesis, Kinetics and Electrochemical Properties of a New Photochromic Diarylethene
A new unsymmetrical photochromic diarylethene [1-(2-methyl-5-(3-methoxyphenyl)-3-thienyl), 2-(2-methyl-3-benzothienyl)] perfluorocyclopentene (1a), was synthesized, and its photochromic properties such as photochromism, kinetics and electrochemical properties were investigated in detail. The results showed that the compound exhibited excellent photochromism both in solution and in PMMA film with alternating irradiation by UV/Vis light. The kinetic and electrochemical experiments indicated that the cyclization/cycloreversion process of the compound was determined to be the zeroth/first order reaction, and the electrochemcial switching property can be potential use for electrochemistry data storage. At last, using this dithienylethene as recording medium was performed successfully.
S. Z. Pu et al., "Synthesis, Kinetics and Electrochemical Properties of a New Photochromic Diarylethene", Key Engineering Materials, Vols. 474-476, pp. 1543-1546, 2011