Fourier-transform microwave spectroscopy on weakly bound complexes of CH2OO with Ar, CO, and N-2

Masakazu Nakajima, Yasuki Endo*

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Pure rotational transitions of weakly bound complexes of the simplest Criegee intermediate CH2OO with Ar, CO, and N-2 are observed by Fourier-transform microwave (FTMW) and FTMW-MW double-resonance spectroscopy. Many of the observed lines show doublet peaks associated with the tunneling splitting between the two equivalent configurations of the complexes. The intermolecular distances of the complexes are derived from the precise rotational constants determined in this study. The separations between two components of the doublet peaks observed for c-type transitions of CH2OO-Ar are satisfactorily demonstrated by a one-dimensional hindered rotor model for the internal rotation of the CH2OO monomer. Published under license by AIP Publishing.

Original languageEnglish
Article number064301
Number of pages10
JournalJournal of Chemical Physics
Volume151
Issue number6
DOIs
StatePublished - 14 Aug 2019

Keywords

  • CRIEGEE INTERMEDIATE CH2OO
  • INTERNAL-ROTATION
  • SPECTRA
  • CONSTANTS
  • MECHANISM
  • BARRIERS

Cite this