Fourier transform spectra of the 3300 cm-1 bands of HCN

J. I. Choe, T. Tipton, Stephen G Kukolich

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Abstract

The 3300-cm-1 bands of various isotopes of HCN have been measured with a resolution of about 0.01 cm-1 using the Fourier transform spectrometer constructed by J. Brault and co-workers at the National Solar Observatory. The frequencies of 910 HCN lines obtained from absorption spectra of three different isotopic species are reported with an accuracy of approximately 0.0001 cm-1. Six bands of HCN, four bands of H13CN, and two bands of HC15N were analyzed to obtain band origins, rotational constants, and l-doubling constants. The first (1110 ← 0110) and second (1200 ← 0200 and 1220 ← 0220) hot bands of H13CN are measured at high resolution for the first time. The fine structures of the Q branches of (110 ← 010), (1220 ← 0220), and (1330 ← 0330) "hot bands" of HCN have been completely resolved and measured. The accuracies of the calculated band origins are better than 0.0001 cm-1 for most bands, and the upper state rotational constants (B′) have accuracies which range from 1 × 10-7 to 5 × 10-6 cm-1 (0.003 to 0.015 MHz).

Original languageEnglish (US)
Pages (from-to)292-307
Number of pages16
JournalJournal of Molecular Spectroscopy
Volume117
Issue number2
DOIs
StatePublished - 1986

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Observatories
Isotopes
Spectrometers
Absorption spectra
Fourier transforms
solar observatories
rotational states
isotopes
fine structure
spectrometers
absorption spectra
high resolution

ASJC Scopus subject areas

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

Cite this

Fourier transform spectra of the 3300 cm-1 bands of HCN. / Choe, J. I.; Tipton, T.; Kukolich, Stephen G.

In: Journal of Molecular Spectroscopy, Vol. 117, No. 2, 1986, p. 292-307.

Research output: Contribution to journalArticle

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AB - The 3300-cm-1 bands of various isotopes of HCN have been measured with a resolution of about 0.01 cm-1 using the Fourier transform spectrometer constructed by J. Brault and co-workers at the National Solar Observatory. The frequencies of 910 HCN lines obtained from absorption spectra of three different isotopic species are reported with an accuracy of approximately 0.0001 cm-1. Six bands of HCN, four bands of H13CN, and two bands of HC15N were analyzed to obtain band origins, rotational constants, and l-doubling constants. The first (1110 ← 0110) and second (1200 ← 0200 and 1220 ← 0220) hot bands of H13CN are measured at high resolution for the first time. The fine structures of the Q branches of (110 ← 010), (1220 ← 0220), and (1330 ← 0330) "hot bands" of HCN have been completely resolved and measured. The accuracies of the calculated band origins are better than 0.0001 cm-1 for most bands, and the upper state rotational constants (B′) have accuracies which range from 1 × 10-7 to 5 × 10-6 cm-1 (0.003 to 0.015 MHz).

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