Nonresonant two-photon mass analyzed threshold ionization and zero kinetic energy photoelectron investigation of the X̃ 2B1 ground state of CH2CO+ and CD2CO+

Shiliang Wang, Yujun Shi, Zygmunt J. Jakubek*, Michael Barnett, Benoit Simard, Klaus Müller-Dethlefs, Ching Ping Liu, Yuan-Pern Lee

*Corresponding author for this work

Research output: Contribution to journalArticle

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Abstract

The nonresonant two-photon MATI and ZEKE spectra of CH2CO+ and CD2CO+ were recorded. Fundamental wave numbers of several (six for CH2CO+ and seven for CD2CO+) normal vibrational modes of the ̃X2B1 electronic ground state of both ketene cation isotopomers were determined. The v5, v6, v8, and v9 nontotally symmetric vibrational modes were observed in the ̃X2B1 state of the ketene cation for the first time. The higher resolution of MATI and ZEKE techniques as compared with the traditional photoelectron made it possible to partially resolve the rotational structures of some of the bands.

Original languageEnglish
Pages (from-to)6546-6555
Number of pages10
JournalJournal of Chemical Physics
Volume117
Issue number14
DOIs
StatePublished - 8 Oct 2002

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