Zero-kinetic-energy photoelectron spectroscopy and excited-state intramolecular proton transfer in a 'double' benzoxazole

A. Mühlpfordt, U. Even, N. P. Ernsting

Research output: Contribution to journalArticlepeer-review

Abstract

Resonant two-color photoionization spectroscopy has been used for the first time to study a compound which exhibits an enol → keto reaction after electronic excitation. Detecting only photoelectrons with zero kinetic energy (ZEKE), we observe two energy thresholds for ionization from selected vibronic levels of the jet-cooled molecule. The thresholds are assigned to the excited enol and keto forms. The implications for the ultrafast time-resolved spectroscopy of the reaction are discussed.

Original languageEnglish
Pages (from-to)178-184
Number of pages7
JournalChemical Physics Letters
Volume263
Issue number1-2
DOIs
StatePublished - 6 Dec 1996

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