Abstract
Arrhenius photobases are of potential use for excited state hydroxide ion dissociation (ESHID), photo-induced pOH jump experiments, and base-catalyzed reactions. However, previously studied Arrhenius photobases have to be excited by UV light and undergo ESHID reactions only in protic solvents. These characteristics have become a disadvantage to their application in many fields of research. In this work, we have designed and synthesized a new Arrhenius photobase (NO2-Acr-OH), the ESHID reaction of which is readily triggered by visible light excitation. In contrast to previously studied Arrhenius photobases, NO2-Acr-OH undergoes ESHID reactions in protic solvents as well as in polar aprotic solvents. Solvent-dependent photo-induced reactions of NO2-Acr-OH are comprehensively studied by time-resolved fluorescence spectroscopy. Molecular designs for visible light triggered acridinol-based Arrhenius photobases with a large ΔpKb value are proposed.
Original language | English |
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Pages (from-to) | 668-673 |
Number of pages | 6 |
Journal | New Journal of Chemistry |
Volume | 44 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2020 |
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)
- Materials Chemistry