Abstract
The quasiclassical method has been used with a CI rigid rotor surface for Li+–CO and an SCF surface for Li+–N2 to compute the broad rotational distributions in the differential cross sections at 4.23 eV and center of mass scattering angles, 35°–50°. Calculations including vibrations have also been done primarily to see the influence on the rotational distributions. The results are compared with experiments and good agreement is found for N2 but unresolved discrepancies are found for CO. The distributions are found to fall off more sharply after the peak than in the experimental results and the reason for this is analyzed in the coplanar case. It is suggested that structure is observed in both the calculated and experimental distributions. Such structure is demonstrated and analyzed in terms of rainbow-type singularities in the coplanar case.
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