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Deciphering mechanism of aggregation-induced emission (AIE): Is E-Z isomerisation involved in an AIE process?
- Publication Year :
- 2012
-
Abstract
- In this work, we address a mechanistic issue on AIE process and correct a long-held misconception on stilbene photoluminescence. E-Z isomerisation has been generally recognized as the cause of emission quenching in stilbene solutions. A natural question arisen from this common belief is whether suppression of E-Z isomerisation by aggregate formation in a stilbenic fluorogen system is responsible for its AIE phenomenon. Monitoring of the structural change of a stilbene derivative named 1,2-diphenyl-1,2-di(p-tolyl)ethene by NMR during UV irradiation reveals that the E-Z isomerisation is not involved in its AIE process under the normal photoluminescence spectral measurement conditions. © 2012 The Royal Society of Chemistry.
Details
- Database :
- OAIster
- Notes :
- English
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.ocn895602203
- Document Type :
- Electronic Resource