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Guang Yang. Dimension-controllable and photo-responsive supramolecular organic frameworks with tunable fluorescence through cucurbit[8]uril-based supramolecular hierarchical self-assembly in aqueous solution[J]. Chinese Journal of Chemical Physics .
Citation: Guang Yang. Dimension-controllable and photo-responsive supramolecular organic frameworks with tunable fluorescence through cucurbit[8]uril-based supramolecular hierarchical self-assembly in aqueous solution[J]. Chinese Journal of Chemical Physics .

Dimension-controllable and photo-responsive supramolecular organic frameworks with tunable fluorescence through cucurbit[8]uril-based supramolecular hierarchical self-assembly in aqueous solution

  • Received Date: 2020-12-09
  • Accepted Date: 2021-02-01
  • Rev Recd Date: 2021-01-11
  • Available Online: 2021-03-23
  • Dimension-controllable supramolecular organic frameworks (SOFs) with aggregation-enhanced fluorescence are hierarchically fabricated through the host-guest interactions of CB[8] and coumarin-modified tetraphenylethylene derivatives (TPEC). The three-dimensional (3D) layered SOFs could be constructed from the gradual stacking of two-dimensional (2D) mono-layered structures via simply regulating the self-assembly conditions including the culturing time and concentration. Upon light irradiation under the wavelength of 350 nm, the photodimerization of coumarin moieties occurred, which resulted in the transformation of the resultant TPECn/CB[8]4n 2D SOFs into robust covalently-connected 2D polymers with molecular thickness. Interestingly, the supramolecular system of TPECn/CB[8]4n exhibited intriguing multicolor fluorescence emission from yellow to blue from 0 to 24 hours at 365 nm irradiation, possessing potential applicability for cell imaging and photochromic fluorescence ink.

     

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      沈阳化工大学材料科学与工程学院 沈阳 110142

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