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Double and triple resonance studies of rotational relaxation in NH/sub 3/-He and NH/sub 3/-H/sub 2/ collisions

Journal Article · · J. Chem. Phys.; (United States)
OSTI ID:7208059
; ;
Collision-induced transitions of NH/sub 3/ in the collisions with He and H/sub 2/ are studied by the laser-microwave double and triple resonance methods. The results are summarized in the preference rules. It is confirmed that ..delta..k= +- 3n transitions occur, while ortho-para conversion is still strictly forbidden.
Research Organization:
Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo, 113 Japan
OSTI ID:
7208059
Journal Information:
J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 68:8; ISSN JCPSA
Country of Publication:
United States
Language:
English

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Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
AMMONIA
ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
COLLISIONS
CRYOGENIC FLUIDS
DOUBLE RESONANCE METHODS
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
FLUIDS
HELIUM
HYDRIDES
HYDROGEN
HYDROGEN COMPOUNDS
MOLECULE COLLISIONS
MOLECULE-MOLECULE COLLISIONS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
RARE GASES
RELAXATION
ROTATIONAL STATES
ROTATIONAL STATES HYDROGEN