Sythesis of a Novel Unsymmetrical Photochromic Diarylethene Compound Bearing a Six-Membered Aryl Unit

Duo Hua Jiang; Gang Liu; Wei Jun Liu; Shi Qiang Cui

doi:10.4028/www.scientific.net/AMR.295-297.216

Paper Titles

Study on Seismic Performance of Single Pylon Cable-Stayed Bridge at High Intensity Seismic Region
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Study on Technique of Induction Cladding Alloy Layer in Steel Tube Outer Wall and Property of Alloy Layer
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Synthesis, Optoelectronic Properties of a New Photochromic Diarylethene Bearing Benzothienyl and Malononitrile Group
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Synthesis, Optoelectronic Property and Application in Optical Memory of a Novel Type Diarylethene Based on a Six Unit
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Sythesis of a Novel Unsymmetrical Photochromic Diarylethene Compound Bearing a Six-Membered Aryl Unit
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Photochromism and Optical Storage of a Novel Unsymmetrical Diarylethene Based on Pyrazole and Benzofuran
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Synthesis, Properties and Application in Optical Memory of a Photochromic Diarylethene Based on Benzene Ring
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Photochromism of a New Unsymmetrical Diarylethene Bearing both Thiazole and a Methoxyl Group
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Synthesis，Properties and Application in Optical Memory of a Novel Photochromic Diarylethene Bearing a Six-Membered Aryl Unit
p.232

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Sythesis of a Novel Unsymmetrical Photochromic Diarylethene Compound Bearing a Six-Membered Aryl Unit

Abstract:

A novel unsymmetrical diarylethene derivative bearing both indole and thiophene moieties, in which a cyanol group was substituted at the meta-positions of the terminal phenyl ring, was synthesized. At the same time, 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 592 nm in hexane and at 607 nm in PMMA amorphous film, respectively, upon irradiation with 297 nm UV light. The fluorescence intensity of diarylethene decreased dramatically along with the photochromism from open-ring isomer to closed-ring isomer upon irradiation with 297 nm UV light in PMMA. In hexane solution, the open-ring isomer of the diarylethene 1 exhibited relatively strong fluorescence at 426 nm when excited at 350 nm.