Energy Dependence of Charge‐Transfer Reactions in the Thermal and Low‐Electron‐Volt Region

Publisher Website
Google Scholar
Abstract
A method is presented for extrapolating to lower energies the cross sections for charge transfer which have been measured by beam techniques for incident kinetic energies greater than 1 eV. The method combines the Rapp and Francis resonance charge‐transfer theory with the Langevin capture model, and is based upon a simple superposition of the “noncapture resonance” and “capture resonance” probabilities resulting in charge transfer. Also illustrated is a method for including nonrectilinear orbits in the Rapp and Francis model. Application of the theory to the negative‐ion charge‐transfer reactions O−, O2−, O3−, and OH− with NO2; the positive‐ion charge‐transfer reactions O+, O2+, N+, and N2+ with NO; and N+ with O2 is given, and comparisons with existing experimental data are made. The method appears to be a reasonable approximation provided that the relative probability of the charge‐transfer channel emerging from the capture‐formed complex is independent of the relative kinetic energy of the reactants.

This publication has 15 references indexed in Scilit: