Vibrational energy transfer between HCN and DCN and hydrogen and deuterium halides

Journal Article · Mon Sep 15 04:00:00 EDT 1980 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.440445· OSTI ID:5056723

Arnold, G S; Fernando, R P; Smith, I W.M.

Using the technique of laser-induced infrared fluorescence, rate constants have been determined for the relaxation at room temperature, (297 +- 3) K, of: (a) HC1(v=1) and HBr(v=1) by HCN and DCN, and (b) HCN(001) by HC1, HBr, DC1, DBr, and DCN. Vibrational-to-vibrational (V--V) energy exchange between the H--C (or D--C) stretching mode in HCN (or DCN) and the diatomic's vibrational mode is not the major channel by which energy is transferred. The results are examined in terms of the formation of hydrogen-bonded collision complexes in which there is only a restricted transfer of energy from the excited high frequency mode to other degrees of freedom in the complex.

• Research Organization: Department of Physical Chemistry, University Chemical Laboratories, Lensfield Road, Cambridge CB2 1EP, England
• OSTI ID: 5056723
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 73:6; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
CYANIDES
EMISSION SPECTRA
ENERGY LEVELS
ENERGY TRANSFER
EXCITED STATES
FLUORESCENCE
HYDROBROMIC ACID
HYDROCHLORIC ACID
HYDROCYANIC ACID
HYDROGEN COMPOUNDS
INFRARED SPECTRA
INORGANIC ACIDS
KINETICS
LUMINESCENCE
MOLECULE COLLISIONS
MOLECULE-MOLECULE COLLISIONS
RELAXATION
SPECTRA
VIBRATIONAL STATES