Reversal aggregation-induced circular dichroism from axial chirality transfervia self-assembled helical nanowires

By Fandian Meng, Yuan Sheng, Fei Li, Chengjian Zhu, Yiwu Quan, Yixiang Cheng

July 28, 2017

  • Year

  • Technique

  • Industry

Title

Reversal aggregation-induced circular dichroism from axial chirality transfervia self-assembled helical nanowires

Author

Fandian Meng, Yuan Sheng, Fei Li, Chengjian Zhu, Yiwu Quan, Yixiang Cheng

Year

2017

Journal

RSC Advances

Abstract

Two chiral binaphthyl-based enantiomers, (R/S)-7, were designed and synthesized by Sonogashira cross-coupling reaction of AIE-active TPE and O-BOPHY. Interestingly, the resulting (R/S)-7 can exhibit emission enlargement response in DCM/hexane mixtures due to AIE behavior, but fluorescence quenching in THF/H2O mixtures due to ACQ effect. (R/S)-7 can produce gradual reversal AICD (aggregation-induced circular dichroism) signals from solution to aggregation, which can be attributed to axial chirality transfer to self-assembled helical nanowires in aggregation state.

Full Article

http://pubs.rsc.org/en/content/articlehtml/2017/ra/c7ra00703e

Instrument

J-810

Keywords

Circular dichroism, Stereochemistry, Chemical stability, Aggregation, Materials