Journal article

Publication year: 1998

Pages: 61-69

Journal: Journal of Molecular Spectroscopy

Volume number: 187

Issue number: 1

ISSN: 0022-2852

DOI Link: https://doi.org/10.1006/jmsp.1997.7469

Publisher: Elsevier

Abstract: 
A reanalysis of the v(3), v(4), and v(6) interacting bands of D2CO has been carried out in the region 850 - 1250 cm(-1) using high-resolution Fourier transform spectra recorded at Giessen. As compared to the previous study of these bands (1987, K. Nakagawa, R. H. Schwendeman, and J. W. C. Johns, J. Mol. Spectrosc. 122, 462 - 476) higher J and K-a transitions were assigned for the three bands, leading to a better determination of the upper state constants. The v(3) = 1, v(4) = 1, and v(6) = 1 experimental energy levels were introduced in a least-squares fit calculation together with the microwave measurements available in the literature in order to obtain the upper state parameters (band centers, rotational and coupling constants). In this calculation, which allowed us to reproduce both the infrared and the microwave measurements to within their experimental accuracies, the A-, B-, and C-type Coriolis interactions involving the rotational levels belonging to the v(4) = 1 and v(6) = 1, v(3) = 1 and v(4) = 1, and v(3) = 1 and v(6) = 1 interacting states respectively were explicitly taken into account. Finally, from the intensities, a new determination of the relative values of the q(3), q(4), and q(6) first derivatives of the D2CO dipole moment was performed. (C) 1998 Academic Press.

Harvard Citation style: Perrin, A., Flaud, J., Predoi-Cross, A., Winnewisser, M., Winnewisser, B., Mellau, G., et al. (1998) New high-resolution analysis of the ν3, ν4, and ν6 bands of D2CO measured by Fourier transform spectroscopy, Journal of Molecular Spectroscopy, 187(1), pp. 61-69. https://doi.org/10.1006/jmsp.1997.7469

APA Citation style: Perrin, A., Flaud, J., Predoi-Cross, A., Winnewisser, M., Winnewisser, B., Mellau, G., & Lock, M. (1998). New high-resolution analysis of the ν3, ν4, and ν6 bands of D2CO measured by Fourier transform spectroscopy. Journal of Molecular Spectroscopy. 187(1), 61-69. https://doi.org/10.1006/jmsp.1997.7469