Effect of vibrations on the energy unresolved electron scattering by H2and D2

摘要

The total (elastic plus inelastic) energy unresolved differential cross section for high energy electron scattering, computed previously lsqb;J. Chem. Phys.77, 1323 (1982)rsqb; for H2, has now been obtained for D2. The effects of molecular vibrations are discussed and compared with the data derived from experiment. It is shown that the observed difference between H2and D2experimental data was largely an artifact due to an approximate vibrational averaging in the independent atom model employed in the processing of directly measured quantities. However, the effects of vibrational motion of nuclei are large enough to enable an analysis of various approximate molecular potentials.