Nonsymmetrical Dithienylethenes Bearing Dithieno[3,2-b:2′,3′-d]thiophene Units with Photochromic Performance in the Crystalline Phase

Authors

  • Hongke Wang,

    1. Beijing National Laboratory for Molecular Sciences, Organic Solids Laboratory, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (P.R. China)
    2. Graduate School of the Chinese Academy of Sciences, Beijing 100049 (P.R. China)
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  • Hui Lin,

    1. Beijing National Laboratory for Molecular Sciences, Organic Solids Laboratory, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (P.R. China)
    2. Graduate School of the Chinese Academy of Sciences, Beijing 100049 (P.R. China)
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  • Prof. Wei Xu,

    Corresponding author
    1. Beijing National Laboratory for Molecular Sciences, Organic Solids Laboratory, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (P.R. China)
    • Beijing National Laboratory for Molecular Sciences, Organic Solids Laboratory, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (P.R. China)

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  • Prof. Daoben Zhu

    Corresponding author
    1. Beijing National Laboratory for Molecular Sciences, Organic Solids Laboratory, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (P.R. China)
    • Beijing National Laboratory for Molecular Sciences, Organic Solids Laboratory, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (P.R. China)

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Abstract

Four novel nonsymmetrical photochromic diarylethene compounds containing dithieno[3,2-b:2′,3′-d]thiophene units were designed and synthesized to investigate their photochromic properties. All these molecules adopt a photoactive antiparallel conformation in single crystals, as revealed by X-ray crystallographic analysis, and exhibit excellent photochromism in solution as well as in the crystalline phase.

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