What is it about?
CF3-PhenU is an anion sensor using phenanthroline. Its electron-pulling power enables fast ESPT in solvents like acetonitrile. It shows unique dynamic Stokes shifts, key for robust sensing in diverse media.
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Why is it important?
Unique for achieving solvent-independent ESPT rates via phenanthroline. It works in MeCN by lowering pKa* to 6.14. It reveals the first dynamic Stokes shift for tautomeric fluorescence.
Perspectives
Enhancing fluorophore's electron-accepting character is key for anion sensing in low-beta solvents. Phenanthroline drives efficient ESPT by lowering pKa* and forming a polarized tautomer, ensuring stable detection.
Professor Yoshinobu Nishimura
nishimura@chem.tsukuba.ac.jp
Read the Original
This page is a summary of: Electron-accepting nature of the phenanthroline moiety promotes the excited-state intermolecular proton transfer reaction in urea compounds: A theoretical and experimental study, Journal of Photochemistry and Photobiology A Chemistry, September 2026, Elsevier,
DOI: 10.1016/j.jphotochem.2026.117243.
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