Issue 19, 2024
From the journal:

Chemical Science

Tuning vibration-induced emission through macrocyclization and catenation†

Wei-Tao Xu,a   Zhiyong Peng,a   Peicong Wu,b   Yefei Jiang,a   Wei-Jian Li,a   Xu-Qing Wang,a   Jinquan Chen, ORCID logo b   Hai-Bo Yang ORCID logo ac  and  Wei Wang ORCID logo *a  

* Corresponding authors

a Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular and Process Engineering (SKLPMPE), School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, China
E-mail: wwang@chem.ecnu.edu.cn

b State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Dongchuan Road 500, Shanghai 200241, China

c Shanghai Center of Brain-inspired Intelligent Materials and Devices, East China Normal University, Shanghai 200241, China

Abstract

In order to investigate the effect of macrocyclization and catenation on the regulation of vibration-induced emission (VIE), the typical VIE luminogen 9,14-diphenyl-9,14-dihydrodibenzo[a, c]phenazine (DPAC) was introduced into the skeleton of a macrocycle and corresponding [2]catenane to evaluate their dynamic relaxation processes. As investigated in detail by femtosecond transient absorption (TA) spectra, the resultant VIE systems revealed precisely tunable emissions upon changing the solvent viscosity, highlighting the key effect of the formation of [2]catenane. Notably, the introduction of an additional pillar[5]arene macrocycle featuring unique planar chirality endows the resultant chiral VIE-active [2]catenane with attractive circularly polarized luminescence in different states. This work not only develops a new strategy for the design of new luminescent systems with tunable vibration induced emission, but also provides a promising platform for the construction of smart chiral luminescent materials for practical applications.

Graphical abstract: Tuning vibration-induced emission through macrocyclization and catenation

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Article information

DOI
https://doi.org/10.1039/D4SC00650J
Article type
Edge Article
Submitted
28 Jan 2024
Accepted
06 Apr 2024
First published
11 Apr 2024
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2024,15, 7178-7186

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Tuning vibration-induced emission through macrocyclization and catenation

W. Xu, Z. Peng, P. Wu, Y. Jiang, W. Li, X. Wang, J. Chen, H. Yang and W. Wang, Chem. Sci., 2024, 15, 7178 DOI: 10.1039/D4SC00650J

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