Aggregation-induced emission enhancement (AIEE)-active tetraphenylethene (TPE)-based chemosensor for CN
- PMID: 32950857
- DOI: 10.1016/j.saa.2020.118928
Aggregation-induced emission enhancement (AIEE)-active tetraphenylethene (TPE)-based chemosensor for CN
Abstract
An aggregation-induced emission enhancement (AIEE)-active fluorescent sensor has been successfully designed and synthesized, combining the AIE effect of tetraphenylethylene (TPE) with the cyanide acceptor of phenanthro[9,10-d]imidazole. The sensor exhibits not only the property of AIEE in DCM/n-hexane or THF/H2O, but also the phenomenon of mechanofluorochromic (MFC). It displays large Stokes shift (107 nm) due to the intramolecular charge transfer (ICT) process. The cation of CN- boosts the ICT process to make the greater Stokes shift (184 nm) with the fluorescent color vary from blue-green to sodium-yellow and visually turning from light yellow to dark yellow in the naked eyes. The results of Job's plot, ESI-MS and the DFT calculations provide the stoichiometric ratio and electronic properties of the sensor. Furthermore, the sensor could be applied to qualitative and quantitative detection of CN- on test paper strips.
Keywords: Aggregation-induced emission enhancement; Cyanide; Fluorescent sensor; Mechanofluorochromic.
Copyright © 2020 Elsevier B.V. All rights reserved.
Conflict of interest statement
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Similar articles
-
Tetraphenylethene-Modified Colorimetric and Fluorescent Chemosensor for Hg2+ With Aggregation-Induced Emission Enhancement, Solvatochromic, and Mechanochromic Fluorescence Features.Front Chem. 2022 Jan 26;9:811294. doi: 10.3389/fchem.2021.811294. eCollection 2021. Front Chem. 2022. PMID: 35155382 Free PMC article.
-
Coumarin-Based Arylpyrazolines: Highly Selective Cu2+ Fluorescent Probes and their AIEE and MFC Properties.J Fluoresc. 2025 Mar 11. doi: 10.1007/s10895-025-04245-7. Online ahead of print. J Fluoresc. 2025. PMID: 40067556
-
Aggregation-Induced Emission-Based Material for Selective and Sensitive Recognition of Cyanide Anions in Solution and Biological Assays.ACS Omega. 2021 Jun 24;6(26):16704-16713. doi: 10.1021/acsomega.0c06080. eCollection 2021 Jul 6. ACS Omega. 2021. PMID: 34250330 Free PMC article.
-
Aggregation-induced emission enhancement (AIEE)-active tetraphenylethene (TPE)-based chemosensor for Hg2+ with solvatochromism and cell imaging characteristics.RSC Adv. 2019 Apr 16;9(21):11865-11869. doi: 10.1039/c9ra02119a. eCollection 2019 Apr 12. RSC Adv. 2019. PMID: 35516995 Free PMC article.
-
Synthesis of Fluorophore Based Functional Material for Selective Detection of Al3+ Ion in Water and Decoding the AIEE Property of Its Hydrosol.J Fluoresc. 2023 Nov;33(6):2131-2144. doi: 10.1007/s10895-023-03238-8. Epub 2023 Apr 15. J Fluoresc. 2023. PMID: 37060429 Review.
Cited by
-
A fluorescent molecular rotor for the in situ imaging of latent fingerprints.RSC Adv. 2022 Nov 22;12(51):33180-33186. doi: 10.1039/d2ra06728e. eCollection 2022 Nov 15. RSC Adv. 2022. PMID: 36425194 Free PMC article.
-
Electrostatically mediated phosphorescence enhancement of micro-nano composites.Nat Commun. 2025 May 6;16(1):4189. doi: 10.1038/s41467-025-59360-7. Nat Commun. 2025. PMID: 40328754 Free PMC article.
-
Tunable Fluorescence via Self-Assembled Switching of AIE-Active Micelle-like Nanoaggregates.Int J Mol Sci. 2023 Jun 9;24(12):9941. doi: 10.3390/ijms24129941. Int J Mol Sci. 2023. PMID: 37373087 Free PMC article.
LinkOut - more resources
Full Text Sources
Other Literature Sources
