Transition dipole matrix elements for 14NH3 from the line intensities of the 2ν2 and ν4 bands |
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| Authors: | ? Urban D Papou?ek V Malathy Devi B Fridovich Romola D&#x;Cunha K Narahari Rao |
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| Institution: | The J. Heyrovsky Institute of Physical Chemistry and Electrochemistry, Czechoslovak Academy of Sciences, Flemingovo n. 2, 166 10 Prague 6, Czechoslovakia;National Oceanic and Atmospheric Administration, National Environmental Statellite, Data, and Information Service, Washington, D.C., 20233 USA;Department of Physics, Ohio State University, Columbus, Ohio, 43210 USA |
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| Abstract: | Line intensities as well as self- and nitrogen-broadening coefficients have been determined for 20 transitions in the 2ν2 and ν4 bands of 14NH3 using a diode laser spectrometer. Vibrational-inversional transition moments have been determined for transitions from the ground state to the ν2, 2ν2 and ν4 states by a least-squares fit to the line intensities, taking into account Coriolis and l-type interactions between the nν2 (n = 1, 2, 3), ν4 and ν2 + ν4 states ?. Urban, V. ?pirko, D. Papou?ek, R. S. McDowell, N. G. Nereson, S. P. Belov, L. I. Gershtein, A. V. Maslovskij, A. F. Krupnov, J. Curtis, and K. Narahari Rao, J. Mol. Spectrosc.79, 455–495 (1980)]. The values of these transition moments have been combined with the previously obtained transition moments for NH3 and its isotopomers to obtain an improved fit to the μz component of the electric dipole moment function of ammonia cf. V. ?pirko, J. Mol. Spectrosc.74, 456–464 (1979)]. |
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