Interaction potentials for Br(/sup 2/P)+Ar, Kr, and Xe (/sup 1/S) by the crossed molecular beams method
Angular distributions of Br(/sup 2/P/sub 3/2,1/2/) scattered off Ar, Kr, and Xe (/sup 1/S/sub 0/) in the thermal energy range were measured in crossed molecular beams experiments. Interaction potentials for the X1/2 and I3/2 states are derived by using an approximate elastic scattering analysis, which neglects interstate coupling, as previously done for F--Xe, Kr, Ar, Ne and Cl--Xe. While the Br--Xe X1/2 potential (epsilon = 0.645 kcal/mole, r/sub m/ = 3.80 A) shows a stronger interaction than the interaction potential of Kr--Xe, the Br--Kr (epsilon = 0.460 kcal/mole, r/sub m/ = 3.90 A) and Br--Ar (epsilon = 0.380 kcal/mole, r/sub m/ = 3.73 A) X1/2 potentials are closer to those of the corresponding rare gas pairs. The I3/2 potential for all three systems is found to have a shallower epsilon, a slightly larger r/sub m/, and a more repulsive wall than the /sup 1/..sigma../sup +/ potential of the corresponding rare gas pair. The origin of these interactions is discussed and an attempt to examine the rare gas halides ground state bonding is presented.
- Research Organization:
- Materials and Molecular Research Division of the Lawrence Berkeley Laboratory
- OSTI ID:
- 6333823
- Journal Information:
- J. Chem. Phys.; (United States), Vol. 75:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ARGON
ATOM-ATOM COLLISIONS
BROMINE
KRYPTON
XENON
ANGULAR DISTRIBUTION
COLLIDING BEAMS
ELASTIC SCATTERING
EXPERIMENTAL DATA
INTERATOMIC FORCES
MOLECULAR BEAMS
ATOM COLLISIONS
BEAMS
COLLISIONS
DATA
DISTRIBUTION
ELEMENTS
FLUIDS
GASES
HALOGENS
INFORMATION
NONMETALS
NUMERICAL DATA
RARE GASES
SCATTERING
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena