Effective Dipole Moment and Band Intensities of Nitrous Oxide

Dipole-Moment Derivatives of Nitrous Oxide

“…That the value of Ref. (17) for this parameter is very well reproduced with the help of the dipole-moment derivative 13 obtained from the rotationless transition moments of the bands lying in the 1 ϩ 3 band region confirms once again the value of Lacome et al (27) ͉R 000141000 ͉ ϭ 5.658 ϫ 10 Ϫ2 D for the rotationless transition moment of the band 0001 4 1000 but not the value ͉R 000141000 ͉ ϭ 3.48 ϫ 10 Ϫ2 D of Toth (7). See also the discussion in our paper (17).…”

“…In our next paper (17), with the help of Eqs. [1] and [2] and using the eigenfunctions of this effective Hamiltonian we fitted the parameters of the matrix elements of the effective dipole-moment operator to the observed values (7) of the rotationless transition moments of the bands belonging to the ⌬P ϭ 2, 3, 4, 5, and 6 series of transitions.…”

“…The parameters for the ⌬P ϭ 2, 3, 4, 5, and 6 series are published in Ref. (17). Those for the ⌬P ϭ 8 series of transitions are available from Ref.…”

“…In our previous paper (17), the effective operator approach was employed to determine the values of the matrix element parameters of the effective dipole-moment operator from fitting to a set of experimental rotationless electric-dipole transition moments. These rotationless electric-dipole transition moments had been obtained by Toth (7) from the conventional reduction of experimental line intensities of a given band to the corresponding band intensity and Herman-Wallis coefficients.…”

Line Intensity Measurements in 14N216O and Their Treatment Using the Effective Dipole Moment Approach

“…At the time, the parameters of this reduced effective Hamiltonian were determined by a leastsquares fit to the experimental values of effective spectroscopic constants G υ , B υ , and D υ available in the literature (7). Using the corresponding eigenfunctions, we showed that the effective dipole moment operator corresponding to the reduced effective Hamiltonian was able to reproduce the experimental band intensities of nitrous oxide measured by Toth (13) up to 3600 cm −1 , practically within experimental uncertainty (8). We have then demonstrated the ability of the effective operators method to treat simultaneously line intensities of cold and corresponding hot bands using experimental data in the 4-µm region (9).…”