Abstract
A new unsymmetrical photochromic diarylethene bearing a benzothiophene aryl unit, 1-[2-methyl-5-(1,3-dithiolpentane)-3-thienyl]-2-[2-methyl-3-benzothiophenyl]perfluoroyclopentene has been synthesized, and its photochromic, fluorescence and optical recording strorage properties were investigated. The compound exhibited pronounced photochromic and clear fluorescence switching properties upon alternating irradiation with UV and visible light; the colorless open form with fluorescence character could be regenerated by irradiation with visible light. In terms of potential use for optical storage and readout, this compound displays fluorescence discrimination between its open and closed form. This fluorescence switching could be the basis of a remote control nondestructive readout method.
Published Version
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