Synthesis of New Types Photochromic Dithienylethenes and Investigation on their Properties

doi:10.7517/j.issn.1674-0475.2005.03.167

Abstract

Abstract: Two novel photochromic dithienylethenes compounds, 1,2-bis[2-methyl-5-(4-ethoxyphenyl)-3-thienyl]fluorocyclopentene (1a) and 1,2-bis[2-methyl-5-(4-ethoxyphenyl)-3-thienyl]fluorocyclopentene (2a) were synthesized, and their UV-Vis absorption spectra, fluorescent properties and photochromic dynamics character were studied in different solvents and concentrations. The results indicate that they have not only shown good photochromic behavior and strong fluorescent properties, but also their cyclization reactions are zeroth order reaction and cycloreversion reactions are first order reaction.

Key words: diarylethene, photochromism, fluorescence, UV-Vis spectra

CLC Number:

LI Gui-zhen, PU Shou-zhi, XU Jing-kun, SHEN Liang, XIAO Qiang, CHEN Bing, ZHAO Ji-quan. Synthesis of New Types Photochromic Dithienylethenes and Investigation on their Properties[J]. Imaging Science and Photochemistry, 2005, 23(3): 167-174.

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Synthesis of New Types Photochromic Dithienylethenes and Investigation on their Properties

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