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Large geometrical structure changes of photochromic diarylethenes upon photoirradiation

Authors
Journal
Tetrahedron Letters
0040-4039
Publisher
Elsevier
Publication Date
Volume
45
Issue
6
Identifiers
DOI: 10.1016/j.tetlet.2003.12.005
Keywords
  • Photochromism
  • Diarylethene
  • Substituent Effect
Disciplines
  • Mathematics
  • Physics

Abstract

Abstract Photochromic diarylethene derivatives having phenylethynyl and pent-1-ynyl groups at the reactive carbons have been synthesized. These ethynyl groups enhance the cycloreversion quantum yields of diarylethenes without affecting the absorption maxima and the absorption coefficients of the closed-ring isomers. The derivatives exhibited large geometrical structural changes in the photoisomerization process.

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