ABSOLUTE RO-VIBRATIONAL INTENSITIES FOR THE $\Delta V = 1$ VIBRATIONAL BANDS OF $^{3}\Sigma^{-} NH$
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Date
1988
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Publisher
Ohio State University
Abstract
We determine absolute ro-vibrational line intensities for $\Delta V = 1 (V=1-4)$ vibrational bands of the astrophysically important species. NH, indepently of any information on its molecular concentration. To this end we measure relative line intensities across $\Delta V = 1$ bends. The effect of vibration rotation interaction on the line intensities then allows a direct determination of the derivative of the electric-dipole fundamental band transition $moment^{1}$. The results of these experiments are then compared to theoretical $calculations^{2}$ obtained via high quality ab initu calculations of the electric dipole moment function.
Description
$^{1}$ C. Chackerian. Jr. J Chem Phys 85, 1200 (1986) $^{2}$ C. Chackerian. Jr. C. W Bauschlicher, S. R. Langhoff. A. Lopes-Pineiro and R. H. Tipping (to be published)
Author Institution: NASA-Ames Research Center, Moffett Field; Leboratotre d'lnfrarouge associ\'e au CNRS, Universit\'e de Paris-sud; Departmento de Outmica Fisica, Facultad de Ciencias, Universided de Extremedura; Department of Physics and Astronomy, University of Alabama
Author Institution: NASA-Ames Research Center, Moffett Field; Leboratotre d'lnfrarouge associ\'e au CNRS, Universit\'e de Paris-sud; Departmento de Outmica Fisica, Facultad de Ciencias, Universided de Extremedura; Department of Physics and Astronomy, University of Alabama