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IR–Microwave Double Resonance Studies of Tunneling Frequencies in the ν1and ν3States of Ammonia

✍ Scribed by Mark D. Marshall; Kamil Can Izgi; J.S. Muenter

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 127 KB
Volume: 183
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.1996.7224

No coin nor oath required. For personal study only.

✦ Synopsis

Infrared laser-microwave double resonance spectroscopy has been used to observe tunneling transitions in the nu1 and nu3 hydrogen stretching states of NH3 . Inversion frequencies in 15 rotational states of nu1 and 6 rotational states of nu3 were measured to accuracies of ±25 kHz. Comparisons between ground state and v 1 = 1 data indicate that x-y Coriolis interactions are responsible for much of the angular momentum dependence of the nu1 inversion splittings. The J ,K rotational quantum number dependence for tunneling in nu3 is very different from that in either the ground state or nu1 .

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