THE SCATTERING OF K AND Cs BY SEVERAL COMPOUNDS.
Abstract
The nonreactive scattering of K from C10H16, (CH3)3CBr, SiCl4, Cl2, Br2, I2, ICl, (CN)2C=C(CN)2, and Cs from HBr has been studied in experiments with crossed molecular beams. The primary alkali metal beam was velocity selected, and the scattered alkali metal was measured as a function of laboratory angle at a number of initial relative kinetic energies. Potential parameters are calculated from the rainbow scattering for K + C10H16, (CH3)3C Br, SiCl4, and Cs + HBr and also from the supernumerary rainbows for K + C10H16 and (CH3)3CBr. An optical model analysis on K+(CH3)3CBr and Cs + HBr yields information about threshold conditions for reaction, probability of reaction, and total reaction cross section as a function of relative energy. For system without rainbow scattering (K + halogens, (CN)2C = C(CN)2) an optical analysis made with a simple form for the absorption function requires a gradual change from a van der Waals potential at very large distances of separation of reactants to a more attractive potential at smaller distances. This indicates a gradual electron transfer on approach of reactants rather than on abrupt electron jump. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1968
- Accession Number
- AD0679743
Entities
People
- C. E. Young
- E. F. Greene
- J. Ross
- L. F. Hoffman
- M. W. Lee
Organizations
- Purdue University