Frontiers in Chemistry (Aug 2022)

Aggregation-Induced Polarization (AIP): Optical Rotation Amplification and Adjustment of Chiral Aggregates of Folding Oligomers and Polymers

  • Yao Tang,
  • Sai Zhang,
  • Ting Xu,
  • Qingkai Yuan,
  • Jia-Yin Wang,
  • Shengzhou Jin,
  • Yu Wang,
  • Junyi Pan,
  • Isaac Griffin,
  • Daixiang Chen,
  • Guigen Li,
  • Guigen Li

DOI
https://doi.org/10.3389/fchem.2022.962638
Journal volume & issue
Vol. 10

Abstract

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The phenomenon of aggregation-induced polarization (AIP) was observed showing optical rotation amplification and adjustment. The relationship between optical rotations of chiral aggregates of multilayered chiral folding oligomers and polymers with water% in THF (fw) has been established accordingly. New multilayered chiral oligomers were synthesized under the asymmetric catalytic systems established by our laboratory recently. These products were well-characterized by UV-vis, NMR, and MALDI-TOF spectra. Absolute stereochemistry (enantio- and diastereochemistry) was assigned by comparison with similar asymmetric induction by the same catalyst in our previous reactions. The present AIP work can serve as a new tool to determine chiral aggregates, especially for those that cannot display emission. AIP would also complement AIE-based CPL since AIP serves as a new tool providing enhanced right- or left-hand polarized lights with individual wavelengths. It will find many applications in chemical and materials science in the future.

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