Synthesis, Property and Holographic Recording of a Photochromic Diarylethene Bearing Chlorine Atoms

A novel symmetrical photochromic diarylethene, 1,2-bis[2-methyl-5-(p-chlorophenyl)-3-thienyl]perfluorocyclop- entene (1a), has been synthesized. Its photochromic properties in solution and PMMA film were investigated. While, fluorescence properties in different solution have also been discussed. The results of the research demonstrated that it has shown good photochromic behavior and relatively strong fluorescence in different solution at room temperature. At last, using this dithienylethene as recording medium, photon-mode holographic optical storage was performed successfully.