Application of ion imaging to the atom–molecule exchange reaction: H+HI→H2+I

Abstract
The bimolecular abstraction reaction H+HI→H2+I has been investigated in a neat molecular beam of HI using ion imaging to detect the H2 (v=1,J=11,13) products. Images obtained determine the laboratory‐frame product velocity distribution and show evidence for reaction with fast and slow H atoms arising from the I (2P3/2) and I*(2P1/2) channels in the photolysis of HI, as well as formation of I and I* in the reaction product channel.