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Absolute Intensity of the NH3 ν2 Band

✍ Scribed by Mike Fabian; Koichi M.T. Yamada

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
224 KB
Volume
198
Category
Article
ISSN
0022-2852

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✦ Synopsis

Absolute line intensities of NH 3 in the 2 band were measured for a number of rovibrational lines using a high-resolution Fourier transform infrared spectrometer. The transition dipole moments calculated from the absolute intensities showed significant and systematic deviations from the usual rotational dependencies predicted from the J, K dependence of the direction-cosine matrix elements. The anomalous rotational dependencies may be explained by vibration-rotation interactions, and the Herman-Wallis-type rotational correction factors for a symmetric top molecule were determined experimentally for the first time in the present study. The self-broadening coefficients were determined as well.

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