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Vibrational intensities VIII: CH3- and CD3- chloride, bromide and iodide

Dickson, A. D., Mills, I. and Crawford, Jnr., B. (1957) Vibrational intensities VIII: CH3- and CD3- chloride, bromide and iodide. The Journal of Chemical Physics, 27. pp. 445-455. ISSN 0021-9606

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To link to this item DOI: 10.1063/1.1743744


Absolute intensity measurements have been made on the fundamental vibrations of methyl chloride, bromide, and iodide, and their fully deuterated derivatives, by integrating the optical density over the absorption bands. The bands were fully pressure broadened by using up to 80 atmos of foreign gas. Band separations were made graphically. The results are analyzed in terms of the dipole moment derivatives with respect to symmetry coordinates in the molecule, (∂p/∂Si). The data on the different isotopic species are shown to yield consistent results, and this requirement of consistency has also been used as an aid in the analysis. In the E‐class vibrations the signs of the dipole moment derivatives have been determined unambiguously by assuming the permanent dipole to be directed CH3+☒X—.

Item Type:Article
Divisions:Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:7375
Publisher:American Institute of Physics

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