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New observation of the quintet states of CO excited by glow discharge

  • R. Al-Tuwirqi
  • , N. Al-Suliman
  • , A. A.I. Khalil
  • , M. A. Gondal*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Emission from the lowest quintet state of CO is observed in low power glow discharge. Intersystem crossing from the C1Σ+(ν= 1) state to the a″5Π state makes transition from the a″5Π state to lower lying states possible. The term values for the three lower vibrational levels of the a″5Π state are found to be, ν(0)=84264cm-1, ν(1)=84264cm-1 and ν(2)=84264cm-1 above the ground level. The fundamental vibrational frequency of the a″5Π state is found to be ωe=907. 18±6cm-1. Analysis of the relaxation pathways of excited CO molecules via the a″5Π state is carried out and transition lines assigned.

Original languageEnglish
Pages (from-to)2951-2956
Number of pages6
JournalMolecular Physics
Volume110
Issue number23
DOIs
StatePublished - 2012

Keywords

  • CO
  • Dunham coefficients
  • emission spectra
  • potential energy curves
  • quintet state

ASJC Scopus subject areas

  • Biophysics
  • Molecular Biology
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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