Synethesis and Properties of 1-(2-trifluoromethylphenyl)-2-[2-methyl-5-(3-N,N-dimethylphenyl)-3-thienyperfluorocyclopentene

Abstract:

An unsymmetrical photochromic diarylethene 1-(2-trifluoromethylphenyl)-2-[2-methyl-5-(3-N,N-dimethylphenyl)-3-thienyperfluorocyclopentene (1a) was synthesized and its photochromism, fluorescent properties and reaction kinetics of cyclization and cycloreversion were studied in detail. The compound exhibited remarkable photochromism and its absorption maxima were observed at 552 nm in hexane and at 569 nm in PMMA films upon irradiation with 297 nm UV light. The fluorescence intensity of diarylethene decreased upon irradiation with 297 nm UV light. In addiation, reaction kinetics of the cyclization and cycloreversion processes of the compound were determined to be the zeroth and first order reaction by UV-Vis spectra, respectively.

• Periodical: Applied Mechanics and Materials (Volume 473)
• Pages: 77-80
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.473.77
• Online since: December 2013
• Authors: Zhi Yuan Sun, Dan Dan Xue, Shou Zhi Pu*
• Keywords: Diarylethene, Fluorescence, Photochromic, Reaction Kinetics

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