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A multiphoton ionization study of nh3 rotational relaxation in pulsed NH3-He supersonic expansions

✍ Scribed by Bruce D. Kay; A.J. Grimley

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 421 KB
Volume: 127
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(86)80286-x

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✦ Synopsis

Two-photon

resonant three-photon ionization is employed to study the rotational relaxation of NH, in a pulsed supersonic expansion. The different NH, nuclear spin modifications (ortho-para) do not interconvert and relax at different rates. Para relaxation is more efficient than ortho relaxation as evidenced by a higher rotational temperature for the ortho spin modification.

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