Vibrational relaxation of hexafluoride compounds: MoF/sub 6/, ReF/sub 6/, SeF/sub 6/, and WF/sub 6/
Journal Article
·
· J. Chem. Phys.; (United States)
OSTI ID:6864581
Ultrasonic attenuation has been measured in MoF/sub 6/, ReF/sub 6/, SeF/sub 6/, and WF/sub 6/ at 293 K. In all cases, a single relaxation process was observed and attributed to the total vibrational energy of the relaxing molecule. Isothermal relaxation times were found to be 2.8 x 10/sup -8/, 8.8 x 10/sup -9/, 2.9 x 10/sup -7/, and 2.3 x 10/sup -8/ s atm for MoF/sub 6/, ReF/sub 6/, SeF/sub 6/, and WF/sub 6/, respectively. Assuming series relaxation, those relaxation times can be converted to the number of collisions required for relaxation Z/sub vib/. The values of Z/sub vib/ vary with the energy of the lowest vibrational mode as expected from the simple Lambert--Salter correlation.
- Research Organization:
- Physical Acoustics Research Group, Department of Physics and Astronomy, The University of Mississippi, University, Mississippi 38677
- OSTI ID:
- 6864581
- Journal Information:
- J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 77:8; ISSN JCPSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ATTENUATION
ENERGY LEVELS
EXCITED STATES
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
MOLYBDENUM COMPOUNDS
MOLYBDENUM FLUORIDES
RELAXATION
RHENIUM COMPOUNDS
RHENIUM FLUORIDES
RHENIUM HALIDES
SELENIUM COMPOUNDS
SELENIUM FLUORIDES
SOUND WAVES
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN FLUORIDES
ULTRASONIC WAVES
VIBRATIONAL STATES
WAVE PROPAGATION
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ATTENUATION
ENERGY LEVELS
EXCITED STATES
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
MOLYBDENUM COMPOUNDS
MOLYBDENUM FLUORIDES
RELAXATION
RHENIUM COMPOUNDS
RHENIUM FLUORIDES
RHENIUM HALIDES
SELENIUM COMPOUNDS
SELENIUM FLUORIDES
SOUND WAVES
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN FLUORIDES
ULTRASONIC WAVES
VIBRATIONAL STATES
WAVE PROPAGATION