What is it about?
Proton acceptors (acetate/phosphate) affect excited-state proton transfer in fluoranthene-urea compounds. They influence the state*. Phosphate causes emission*, suggesting T* electron density delocalizes to the acceptor.
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Why is it important?
This paper investigates how proton acceptors (acetate, phosphate) affect excited-state proton transfer (ESPT) in fluoranthene-urea compounds. ESPT generates a fluorescent tautomer (T*), which depends on the proton acceptor. Notably, emission to red-shift over time, unlike acetate. This suggests delocalizes to the acceptor, vital for designing anion sensors.
Perspectives
The electronic state of tautomer is highly dependent on the proton acceptor. Therefore, we aim to identify the types of proton acceptors in the future.
Professor Yoshinobu Nishimura
nishimura@chem.tsukuba.ac.jp
Read the Original
This page is a summary of: Effect of proton acceptors on the excited-state intermolecular proton transfer reaction of fluoranthene–urea compounds, Dyes and Pigments, August 2025, Elsevier,
DOI: 10.1016/j.dyepig.2025.112763.
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