Interaction Potentials for Br(2P) + Ar, Kr, Xe (1S) by the Crossed Molecular Beams Method.
Abstract
Angular distributions of Br((2)P sub 3/2, 1/2) scattered off Ar, Kr, and Xe ((1) S sub 0) in the thermal energy range were measured in crossed molecular beams experiments. Interaction potentials for the X(1/2) and I(3/2) states are derived by using an approximate elastic scattering analysis, which neglects interstate coupling, as previously done for F-Xe,Kr,Ar,Ne and C1-Xe. While the Br-Xe X(1/2) 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) X(1/2) potentials are closer to those of the corresponding rare gas pairs. The I(3/2) 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 1(Sigma +) 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. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1981
- Accession Number
- ADA104002
Entities
People
- Guozhong He
- Piergiorgio Casavecchia
- Randal K. Sparks
- Yuan T. Lee
Organizations
- University of California, Berkeley