Photochromic Kinetics of a Novel Unsymmetrical Diarylethene

Abstract:

A new unsymmetrical photochromic diarylethene 1o, which is named 1-[2-methyl-5-(4-methoxyphenyl)-3-thienyl)-2-{2-methyl-5-[4-methoxyl-3-(2-(1,3-dioxolane)) phenyl]-3-thienyl} perfluorocyclopentene, was synthesized. Its optical properties, including photochromic reactivity, kinetics and fluorescence properties were investigated in detail. The result indicated that the diarylethene underwent reversible photochromism, changing between colorless and blue in hexane solution upon appropriate irradiation with UV light or visible light, respectively. What is more, the kinetic experiments illustrated that the cyclization/cycloreversion process of this compound was determined to be the zeroth/first reaction. In addition, the results demonstrated that the unsymmetrical diarylethene compound 1o had remarkable fluorescence switching properties.

• Periodical: Advanced Materials Research (Volume 830)
• Pages: 250-253
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.830.250
• Online since: October 2013
• Authors: Hong Jing Jia, Wei Wei Geng, Shou Zhi Pu*
• Keywords: Diarylethene, Fluorescence Switching, Kinetic, Photochromism

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