Velocity modulation infrared laser spectroscopy of negative ions: The (011)-(001) band of azide (N3 -)

Mark Polak, Martin H W Gruebele, Grace S. Peng, Richard J. Saykally

Research output: Contribution to journalArticlepeer-review

Abstract

We have measured 43 transitions centered at 1972 cm-1 in the (011)-(001 ) bending hot band of the azide ion (N3 - ) using diode laser velocity modulation spectroscopy of an NH3/N 2O discharge. The data, ranging from P(32) to R(40), were fit to a standard ι-type doubling Hamiltonian through quartic terms. The ι splittings in the spectrum were unusually large compared with similar molecules. Intensity measurements indicate that the vibrational and rotational degrees of freedom are equilibrated, unlike the case for isoelectronic NCO-. Additional lines of the ν3 fundamental have also been measured, which further refine the values of the ground state parameters.

Original languageEnglish (US)
Pages (from-to)110-114
Number of pages5
JournalThe Journal of Chemical Physics
Volume89
Issue number1
DOIs
StatePublished - Jan 1 1988
Externally publishedYes

ASJC Scopus subject areas

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

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