Determination of the proton tunneling splitting of the vinyl radical in the ground state by millimeter-wave spectroscopy combined with supersonic jet expansion and ultraviolet photolysis

Keiichi Tanaka, Masaaki Toshimitsu, Kensuke Harada, Takehiko Tanaka

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

The vinyl radical in the ground vibronic state produced in a supersonic jet expansion by 193 nm excimer laser photolysis of vinyl bromide is discussed. The millimeter-wave spectroscopic technique is used for the investigation purpose. The ground state is split into two components, due to the proton tunneling, of which the lower and higher ones are denoted as 0+ and 0- respectively. Eight pure rotational transitions are observed for each of the 0+ and 0- states in the frequency region of 60-250 GHz.

Original languageEnglish
Pages (from-to)3604-3618
Number of pages15
JournalJournal of Chemical Physics
Volume120
Issue number8
DOIs
Publication statusPublished - Feb 22 2004

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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