Photoactuators based on the dynamic molecular crystals of naphthalene acrylic acids driven by stereospecific [2+2] cycloaddition reactions

作者: Jiaxi Liu , Kaiqi Ye , Yanbing Shen , Jiang Peng , Jingbo Sun

DOI: 10.1039/C9TC06689F

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摘要: The photomechanical effects of the dynamic molecular crystals of halogen-substituted naphthalene acrylic acids (1FNaAA, 1ClNaAA, 1BrNaAA, 1INaAA and 6BrNaAA) have been investigated. Upon UV irradiation, the needle-like crystal of 1FNaAA curls away from the light source, while the slice-like crystal of 6BrNaAA bends towards the light source. Moreover, the light-induced bending, flipping and bursting are observed for the elongated needle-like crystals of 1FNaAA, and the slice-like crystals of 1ClNaAA and 1BrNaAA show …

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