Crossed molecular beams kinetics: BaO recoil velocity spectra from Ba+N/sub 2/O
Laboratory (LAB) angular and time-of-flight (TOF) recoil velocity spectra of BaO product produced by crossing a thermal Ba beam with an N/sub 2/O nozzle beam have been measured in a molecular beam apparatus equipped with an electron bombardment ionizer--quadrupole mass filter ''universal'' detector. Product center-of-mass (c.m.) recoil angle and energy distributions have been fit to the data by convoluting the c.m...-->..LAB transformation over the measured speed distributions of both beams and the bandpass of the TOF analyzer for different N/sub 2/O vibration and relative collision energies. The results indicate a direct reaction mechanism with substantial internal excitation of the products. Backward scattering of the BaO relative to the initial Ba direction is favored, but the product angular distribution also broadens as the reactant energy increases.
- Research Organization:
- Ames Laboratory-ERDA and Department of Chemistry, Iowa State University, Ames, Iowa 50011
- OSTI ID:
- 7097780
- Journal Information:
- J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 67:5; ISSN JCPSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALKALINE EARTH METAL COMPOUNDS
ALKALINE EARTH METALS
ANGULAR DISTRIBUTION
ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
ATOMIC BEAMS
BARIUM
BARIUM COMPOUNDS
BARIUM OXIDES
BEAMS
CHALCOGENIDES
CHEMICAL REACTIONS
COLLIDING BEAMS
COLLISIONS
DISTRIBUTION
ELEMENTS
ENERGY LEVELS
ENERGY SPECTRA
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
KINETICS
METALS
MOLECULAR BEAMS
MOLECULE COLLISIONS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NITROUS OXIDE
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
RECOILS
SPECTRA
TIME-OF-FLIGHT METHOD
VELOCITY
VIBRATIONAL STATES