Hierarchically Chiral Lattice Self-Assembly Induced Circularly Polarized Luminescence

ACS Nano
Jiaqi LiangPengfei Duan

Abstract

Biomaterials in nature often exhibit hierarchical chiral structures with an intriguing mechanism involving hierarchical chirality transfer from molecular to supramolecular and the nano- or microscale level. To mimic the cross-level chirality transfer, we present here one kind of host-guest complex system built of β-cyclodextrin (β-CD), sodium dodecyl sulfate (SDS), and fluorescent dyes, which show multilevel chirality, including molecular chirality of β-CD, induced supramolecular chirality of β-CD/SDS host-guest complexes, a chiral lattice self-assembled nanosheet, mesoscopic chirality of an assembled helical tube, induced chirality of a dye-doped chiral tube. The hierarchical chirality involved a chiral lattice self-assembly process, which can be identified by small-angle X-ray scattering, optical studies, circular dichroism, and circularly polarized luminescence spectral measurements. Benefiting from the chiral lattice self-assembly, intense circularly polarized luminescence was observed from the achiral dye-doped complexes with a large dissymmetry factor up to +0.1. This work thus provides a feasible insight for developing hierarchical chiroptical materials based on the lattice self-assembly.

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Citations

Jun 11, 2020·Chemistry : a European Journal·Suhrit Ghosh, Anurag Mukherjee
Nov 25, 2020·Chemical Communications : Chem Comm·Zhanglang ZhouGuanglu Ge
Feb 2, 2021·Frontiers in Chemistry·Sonia ManiappanJatish Kumar
Jan 15, 2021·Annual Review of Physical Chemistry·Haoyuan Wang, Wei Xiong
Jul 15, 2021·Chemical Science·Jake L GreenfieldMatthew J Fuchter
Aug 5, 2021·Chemistry : a European Journal·Yaqian ZhangChuanliang Feng

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