Efficient Synthesis, Properties of a Novel Unsymmetrical Photochromic Diarylethene Based on Benzothiophene and Thienyl Group

Abstract:

An unsymmetrical diarylethene derivative was synthesized, and its photochromic properties and fluorescence switch were investigated in detail. The results showed that this compound exhibited reversible photochromism, undergoing reversible cyclization and cycloreversion reactions upon alternating irradiation with UV and visible light both in solution and in PMMA film, and its absorption maxima were observed at 548 nm in hexane and at 558 nm in PMMA amorphous film, respectively, upon irradiation with 297 nm UV light. The PMMA film of the diarylethene 1a exhibited relatively strong fluorescence at 413 nm when excited at 311 nm. The fluorscence intensity is highest at the concentration of 1.0×10^-4 mol/L when excited at 311 nm.

• Periodical: Advanced Materials Research (Volumes 455-456)
• Pages: 13-16
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.455-456.13
• Online since: January 2012
• Authors: Duo Hua Jiang, Gang Liu, Wei Jun Liu
• Keywords: Cyclization, Diarylethene, Fluorescence Switching, Photochromism

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