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

作者：Yao Tang, Sai Zhang, Ting Xu, Qingkai Yuan, Jiayin Wang, Shengzhou Jin, Yu Wang, Junyi Pan, Isaac Griffin, Daixiang Chen, Guigen Li · 发表于：Frontiers in Chemistry · 年份：2022 · DOI：10.3389/fchem.2022.962638 · 被引用次数：16 · 研究领域：Photochromic and Fluorescence Chemistry、Synthesis and Properties of Aromatic Compounds、Molecular spectroscopy and chirality

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 ( f w ) 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.