Origin of unique hyper-Raman signals of trifluoroethanol

Kai Chin Chien, Surajit Maity, Hirotsugu Hiramatsu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We report the hyper-Raman (HR) spectrum of trifluoroethanol, excited with 532 nm light, in an aqueous solution at basic pH. The HR spectrum exhibits a distinct spectral pattern that diverges entirely from the infrared and Raman spectra of trifluoroethanol. This observed unique HR signal was attributed to the products of photoinduced radical reactions in the aqueous solution. This result exemplifies the exceptional capabilities of HR spectroscopy based on resonance conditions.

Original languageEnglish
Pages (from-to)27949-27952
Number of pages4
JournalPhysical Chemistry Chemical Physics
Issue number41
StatePublished - 9 Oct 2023


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