Synthesis and Properties of a New Diarylethene with Two Different Substituents for Optical Recording
A new photochromic compound 1-(2,5-dimethyl-3-thienyl)-2-(2-methyl-5-(1-formyl-2- methoxyl-5-phenyl)-3-thienyl)perfluorocyclopentene (1a) was synthesized, its photochromic properties were examined, the result indicated that the color of the compound 1a changed from colorless to a purple one upon irradiation with 297 nm UV light, a new absorption maxima were observed at 542 and 557 nm in hexane and PMMA film, respectively. The new photochromic compound also exhibited remarkable optical recording character.
S. Q. Cui et al., "Synthesis and Properties of a New Diarylethene with Two Different Substituents for Optical Recording", Advanced Materials Research, Vol. 327, pp. 23-26, 2011