Various absorption intensity spectra of liquids CH3OH, CH3OD, CD3OH, and CD3OD: refractive indices, transition moments, and dipole moment derivatives of these molecules

John E. Bertie; Shuliang L. Zhang

doi:10.1117/12.166783

31 January 1994 Various absorption intensity spectra of liquids CH₃OH, CH₃OD, CD₃OH, and CD₃OD: refractive indices, transition moments, and dipole moment derivatives of these molecules

John E. Bertie, Shuliang L. Zhang

Author Affiliations +

Proceedings Volume 2089, 9th International Conference on Fourier Transform Spectroscopy; (1994) https://doi.org/10.1117/12.166783
Event: Fourier Transform Spectroscopy: Ninth International Conference, 1993, Calgary, Canada

Abstract

The infrared absorption intensities of liquid CH₃OH, CH₃OD, CD₃OH and CD₃OD at 25 degree(s)C have been measured by CIRCLE cell multiple attenuated total reflection spectroscopy and by transmission spectroscopy. The intensities are calculated from the spectra as the infrared real, n(v), and imaginary, k(v), refractive indices. The estimated accuracy is +/- 0.5% for n(v) and +/- 3% for k(v) in the regions of significant absorption. Other absorption intensity spectra are calculated from the refractive indices, and the wavenumbers and shapes of bands in the different spectra are compared. Molecular properties can be calculated from several different intensity quantities, under different degrees of theoretical approximation. The effect of these different approximations is shown to be unimportant for experimental spectra of CH₃OH.

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John E. Bertie and Shuliang L. Zhang "Various absorption intensity spectra of liquids CH₃OH, CH₃OD, CD₃OH, and CD₃OD: refractive indices, transition moments, and dipole moment derivatives of these molecules", Proc. SPIE 2089, 9th International Conference on Fourier Transform Spectroscopy, (31 January 1994); https://doi.org/10.1117/12.166783

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