Fourier transform spectroscopy of the CS d3Δi-a3Πr system: Indirect measurement of the 1Σ- valence state

Choe Jong-In Choe, Rho Young-Man Rho, Lee Sang-Min Lee, A. C. Le Floch, S. G. Kukolich

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


The electronic emission spectrum of CS in the range of 9500-17500 cm-1 was recorded with 0.03 cm-1 resolution using the 1-m Fourier transform spectrometer associated with the McMath solar telescope at Kitt Peak National Observatory, Arizona, with an electric discharge in a CS2 and helium mixture. A total of more than 3400 transition frequencies for 24 d3Δ1 (v = 3-14)-a3Π0 (v = 0-2), d3Δ2 (v = 3-12)-a3Π1 (v = 0-2), and d3Δ3 (v = 3-9)-a3Π2 (v = 0-2) bands have been assigned for the vibronic structure of the near-infrared electronic emission. Thirteen of these bands were observed for the first time. The study of the Λ-doubling perturbation of the d3Δ1-a3Π0 (7-0) band allowed us to locate a vibrational level of the previously unknown 1Σ- valence state of CS (T = 40 835.5 cm-1, B = 0.597 cm-1).

Original languageEnglish (US)
Pages (from-to)185-213
Number of pages29
JournalJournal of Molecular Spectroscopy
Issue number1
StatePublished - Sep 1991

ASJC Scopus subject areas

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


Dive into the research topics of 'Fourier transform spectroscopy of the CS d<sup>3</sup>Δ<sub>i</sub>-a<sup>3</sup>Π<sub>r</sub> system: Indirect measurement of the <sup>1</sup>Σ<sup>-</sup> valence state'. Together they form a unique fingerprint.

Cite this