High-resolution study of some doubly excited vibrational states of PH 2D: The ν12, ν25, ν23, and ν26 bands

O. N. Ulenikov, E. S. Bekhtereva, S. V. Grebneva, H. Bürger, W. Jerzembeck, C. Leroy

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Abstract

The absorption bands ν12, ν23, and ν26 of PH2D have been recorded for the first time using a high-resolution Bruker 120 HR interferometer, and rotationally analyzed. Some transitions belonging to the very weak band ν25 and enhanced in intensity by strong interactions with the ν12 band were also assigned. Sets of parameters obtained from the fit reproduce experimental line position of the bands ν12 and ν23 with about the experimental accuracy. The residuals of the ro-vibrational energies of the ν26 band are about 10 times larger. Reasons for the poorer reproduction of the latter data are given.

Original languageEnglish
Pages (from-to)7-23
Number of pages17
JournalJournal of Molecular Spectroscopy
Volume226
Issue number1
DOIs
Publication statusPublished - 1 Jul 2004

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Keywords

  • PHD molecule
  • Resonance interactions
  • Spectroscopic parameters
  • Vibration-rotation spectra

ASJC Scopus subject areas

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

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