Issue 4, 2022

Stacking-dependent tetracolour luminescence and mechanofluorochromic properties of an isoquinoline derivative with aggregation-induced emission

Abstract

Although nearly one-third of organic compounds have polymorphism, the presence of more than three polymorphs with definite crystalline structures in an organic molecule is very rare. Herein, an aggregation-induced-emission-active isoquinoline derivative containing ethyl (E)-2-cyano-3-phenylacrylate at the 8-position is found to have four polymorphs, which are confirmed by X-ray single-crystal analysis. The four polymorphs exhibit different solid-state emissions, including yellow, orange-yellow, orange, and red colours, which are determined to be ascribed to the different stacking arrangements rather than molecular conformations. Furthermore, these polymorphs exhibit reversible and tetracolour switching mechanofluorochromic activities due to the transition between the crystalline and amorphous states.

Graphical abstract: Stacking-dependent tetracolour luminescence and mechanofluorochromic properties of an isoquinoline derivative with aggregation-induced emission

Supplementary files

Article information

Article type
Research Article
Submitted
10 Nov 2021
Accepted
15 Dez 2021
First published
17 Dez 2021

Mater. Chem. Front., 2022,6, 459-465

Stacking-dependent tetracolour luminescence and mechanofluorochromic properties of an isoquinoline derivative with aggregation-induced emission

Y. Chen, B. Wang, Y. Lei, Y. Zhou, Y. Guo, M. Liu, W. Gao, X. Huang and H. Wu, Mater. Chem. Front., 2022, 6, 459 DOI: 10.1039/D1QM01503F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements