Synthesis, Properties and Application in Optical Memory of a Photochromic Diarylethene Bearing Pyrimidine and Pyridine Ring

Abstract:

A new photochromic diarylethene compound, 1-(2,4-dimethoxy-5-pyrimidine)-2-[2-methyl-5-(3-pyridine)-3-thienyl]perfluorocyclopentene(1a), was synthesized, and its photochromic reactivity, fluorescent and electrochemical property were also investigated. Diarylethene 1a changed the color from colorless to pink upon irradiation with UV light, in which absorption maxima were observed at 520 and 519 nm in hexane and PMMA film, respectively. The the photochromic reaction kinetics indicated that the cyclization processes of 1 belong to the zeroth order reaction and the cycloreversion process belong to the first order reaction. This new photochromic system also exhibited remarkable fluorescence switching in hexane solution and this new photochromic system also exhibited remarkable optical storage character.

• Periodical: Advanced Materials Research (Volumes 490-495)
• Pages: 3733-3737
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.490-495.3733
• Online since: March 2012
• Authors: Shu Hong Jing, Shou Zhi Pu, Shi Qiang Cui
• Keywords: Diarylethene, Fluorescence, Photochromism

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