Shining New Light on the Spiropyran Photoswitch: A Photocage Decides Between cis-trans or Spiro-Merocyanine Isomerization.,Journal of the American Chemical Society

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Shining New Light on the Spiropyran Photoswitch: A Photocage Decides Between cis-trans or Spiro-Merocyanine Isomerization.
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2018-10-15 , DOI: 10.1021/jacs.8b09523
Cassandra L. Fleming ₁ , Shiming Li ₂ , Morten Grøtli ₁ , Joakim Andréasson ₂

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Photochromic molecules from the spiropyran family are known to undergo light-induced interconversion between the colorless spiro- and the colored merocyanine forms. Here, we show for the first time that small structural modifications open up for an additional photoisomerization mode: reversible cis- trans isomerization of the merocyanine. Moreover, the introduction of a photocage allows for light-activated switching between the two modes.

中文翻译：

Spiropyran 光开关的新亮点：光笼决定顺反或螺-部花青异构化。

已知来自螺吡喃家族的光致变色分子在无色螺环和有色部花青形式之间经历光诱导的相互转化。在这里，我们首次展示了小的结构修饰为额外的光异构化模式开辟了道路：部花青的可逆顺反异构化。此外，光笼的引入允许在两种模式之间进行光激活切换。

更新日期：2018-10-15

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