Velocity modulation laser spectroscopy of negative ions

The infrared spectrum of hydrosulfide (SH-)

Martin H W Gruebele, Mark Polak, Richard J. Saykally

Research output: Contribution to journalArticle

Abstract

Twenty-five transitions in the υ=0→1 and υ=1→2 bands of 32SH-, as well as in the fundamentals of 33SH- and 34SH- have been measured with a diode laser by the velocity modulation technique. The data set was fit to an effective Hamiltonian through sextic terms to determine equilibrium molecular parameters. Comparison with the neutral SH radical shows a strong similarity in the anion and neutral molecular constants, as in the case of OH-. The agreement of experiment with ab initio calculations is found to be quite good. The rotational and vibrational temperatures of the species were estimated to be 360±50 and 960±200 K, respectively.

Original languageEnglish (US)
Pages (from-to)1698-1702
Number of pages5
JournalThe Journal of Chemical Physics
Volume86
Issue number4
StatePublished - Dec 1 1986

Fingerprint

velocity modulation
Hamiltonians
Laser spectroscopy
laser spectroscopy
negative ions
Anions
Semiconductor lasers
Negative ions
infrared spectra
semiconductor lasers
Modulation
anions
Infrared radiation
Experiments
Temperature
temperature
hydroxide ion

ASJC Scopus subject areas

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

Cite this

Velocity modulation laser spectroscopy of negative ions : The infrared spectrum of hydrosulfide (SH-). / Gruebele, Martin H W; Polak, Mark; Saykally, Richard J.

In: The Journal of Chemical Physics, Vol. 86, No. 4, 01.12.1986, p. 1698-1702.

Research output: Contribution to journalArticle

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