Back to Search Start Over

Achieving aggregation-induced emission and remarkable mechanochromic luminescence based on a tetraphenylethene modified quinoline derivative.

Authors :
Sun, Ting
Wei, Liangqiang
Zhai, Tianliang
Zhao, Feng
Source :
Journal of Molecular Structure. Mar2024, Vol. 1299, pN.PAG-N.PAG. 1p.
Publication Year :
2024

Abstract

• A new tetraphenylethene midified quinolone derivative TPE-QL was designed and prepared. • TPE-QL exhibited highly twisted conformation, high fluorescence quantum and AIE behaviors. • TPE-QL showed mechanochromic behavior by changing the emitting color from blue-green upon grinding. A simple tetraphenylethene (TPE) modified quinoline derivative TPE-QL was designed and prepared. It possessed donor-acceptor molecular structure and highly twisted conformation, which could be proved by spectral studies and theoretical calculatiuons. Due to the introduction of TPE unit, TPE-QL exhibited typical aggregation-induced emission (AIE) characteristic. Interestinly, TPE-QL also showed obvious fluorescence response to mechanical force by changing the emission wavelength from 440 nm to 485 nm upon grinding. Moreover, reversible mechanochromic behavior was detected after repeated grinding and fuming treatment. This work not only discovered a new AIE-active mechanochromic material, but also provided possibility for its application in the filed of ink-free rewritable papers for security decumentation purposes. [Display omitted] [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00222860
Volume :
1299
Database :
Academic Search Index
Journal :
Journal of Molecular Structure
Publication Type :
Academic Journal
Accession number :
174560917
Full Text :
https://doi.org/10.1016/j.molstruc.2023.137210