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      Reversible photochemical control of singlet oxygen generation using diarylethene photochromic switches.

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          Abstract

          Reversible noninvasive control over the generation of singlet oxygen is demonstrated in a bicomponent system comprising a diarylethene photochromic switch and a porphyrin photosensitizer by selective irradiation at distinct wavelengths. The efficient generation of singlet oxygen by the photosensitizer is observed when the diarylethene unit is in the colorless open form. Singlet oxygen generation is not observed when the diarylethene is converted to the closed form. Irradiation of the closed form with visible light (>470 nm) leads to full recovery of the singlet oxygen generating ability of the porphyrin sensitizer.

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          Author and article information

          Journal
          J. Am. Chem. Soc.
          Journal of the American Chemical Society
          1520-5126
          0002-7863
          Jan 22 2014
          : 136
          : 3
          Affiliations
          [1 ] Centre for Systems Chemistry, Stratingh Institute for Chemistry and Zernike Institute for Advanced Materials, University of Groningen , Nijenborgh 4, 9747 AG, Groningen, The Netherlands.
          Article
          10.1021/ja4122473
          24392882
          4f4293b5-7d31-44a8-9bfd-1f3163fba8b4
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