期刊
CHEMICAL SCIENCE
卷 13, 期 23, 页码 7014-7020出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2sc01876d
关键词
-
资金
- National Natural Science Foundation (NSF) of China [22175020, 21631003, 21805005]
- Fundamental Research Funds for the Central Universities [FRF-BD-20-14A]
- University of Science and Technology Beijing
This paper reports a method for the preparation of heterochiral porous organic cages, achieving enantioselective assembly through chiral recognition, and demonstrating the ability of the organic cage to recognize chiral substrates and exhibit circularly polarized luminescence.
Chiral recognition and discrimination is not only of significance in biological processes but also a powerful method to fabricate functional supramolecular materials. Herein, a pair of heterochiral porous organic cages (HPOC-1), out of four possible enantiomeric products, with mirror stereoisomeric crystal structures were cleanly prepared by condensation occurring in the exclusive combination of cyclohexanediamine and binaphthol-based tetraaldehyde enantiomers. Nuclear magnetic resonance and luminescence spectroscopy have been employed to monitor the assembly process of HPOC-1, revealing the clean formation of heterochiral organic cages due to the enantioselective recognition of (S,S)-binaphthol towards (R,R)-cyclohexanediamine derivatives and vice versa. Interestingly, HPOC-1 exhibits circularly polarized luminescence and enantioselective recognition of chiral substrates according to the circular dichroism spectral change. Theoretical simulations have been carried out, rationalizing both the enantioselective assembly and recognition of HPOC-1.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据