High resolution Fourier transform spectroscopy of CH2D 2 in the region 2350-2650 cm-1: The bands ν5 + ν7, 2ν9, ν3 + ν4, ν3 + ν7 and ν5 + ν9

O. N. Ulenikov, E. S. Bekhtereva, S. V. Grebneva, H. Hollenstein, M. Quack

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)


The IR spectrum of the CH2D2 molecule has been measured in the region of 2350-2650 cm-1 on a Bomem DA002 Fourier transform spectrometer with a resolution of 0.004 cm-1 (FWHM, apodized) and analyzed with a Hamiltonian model which takes into account resonance interactions between all vibrational states in that region. More than 3000 transitions have been assigned to the bands and 2ν9, ν3 + ν4, ν5, + ν9, ν5 + ν7, and ν3 + ν7 using ground state combination differences from the known ground state parameters. A set of 115 spectroscopic parameters for the excited vibrational states is obtained from a least squares adjustment. This reproduces the 646 initial upper ro-vibrational energies used in the fit with a drms = 0.0036 cm-1.

Original languageEnglish
Pages (from-to)1142-1150
Number of pages9
JournalPhysical Chemistry Chemical Physics
Issue number6
Publication statusPublished - 21 Mar 2005

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Atomic and Molecular Physics, and Optics

Fingerprint Dive into the research topics of 'High resolution Fourier transform spectroscopy of CH<sub>2</sub>D <sub>2</sub> in the region 2350-2650 cm<sup>-1</sup>: The bands ν<sub>5</sub> + ν<sub>7</sub>, 2ν<sub>9</sub>, ν<sub>3</sub> + ν<sub>4</sub>, ν<sub>3</sub> + ν<sub>7</sub> and ν<sub>5</sub> + ν<sub>9</sub>'. Together they form a unique fingerprint.

Cite this