Affordable Access

deepdyve-link
Publisher Website

Rotational spectrum and internal dynamics of tetrahydrofuran-krypton.

Authors
  • Gou, Qian
  • Feng, Gang
  • Evangelisti, Luca
  • Maris, Assimo
  • Marchini, Marianna
  • Velino, Biagio
  • Caminati, Walther
Type
Published Article
Journal
ChemPhysChem
Publisher
Wiley (John Wiley & Sons)
Publication Date
Jan 16, 2012
Volume
13
Issue
1
Pages
221–225
Identifiers
DOI: 10.1002/cphc.201100673
PMID: 22109993
Source
Medline
License
Unknown

Abstract

The rotational spectrum of the tetrahydrofuran-krypton van der Waals complex has been investigated by pulsed-jet Fourier transform microwave spectroscopy. The spectra of the (84)Kr and (86)Kr isotopologues have been assigned and the krypton atom is located nearly over the oxygen atom, almost perpendicular to the COC plane. Each rotational transition is split into two component lines due to, according to the observed Coriolis coupling term between the tunneling states, the residual pseudorotational effects of the ring in the complex. The splitting between the two vibrational sublevels is 87.462(2) and 87.062(2) MHz for the (84)Kr and (86)Kr isotopologues, respectively. These splittings have been used to determine the barrier to inversion, B(2) = 67 cm(-1). The dissociation energy has been estimated to be 3.7 kJ  mol(-1) from centrifugal distortion effects.

Report this publication

Statistics

Seen <100 times