Abstract
There has been considerable recent interest, both experimental [1–7] and theoretical [8,9] in inelastic as well as reactive collisions involving atoms in 1P electronic states. Leone and co-workers [2–5] have carried out a series of experimental studies of collision-induced, spin-changing transitions between the 1P and 3p electronic states of the 4s5p Rydberg levels of Ca in collisions with noble gases and closed-shell molecules. The electronically excited Ca atoms (4s5p 1P) were prepared by laser excitation out of the 4s2 1S ground state. More recently, similar studies have been carried out with electronically excited Sr [6,7]. The primary motivation for this type of experiment is that the orientation of the excited p orbital can be selected by varying the direction of the polarization vector of the laser. It is thus possible to study the dependence of spin-changing transitions or another collisional process on orbital alignment - orbital stereochemistry. Ultimately, this type of study can be extended to reactive collisions. An example is the work of Rettner and Zare [1] who used laser excitation to investigate the effect of orbital alignment on cross sections for reactions of Ca(4s4p 1P) with several halogen-containing reactants.
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Alexander, M.H., Pouilly, B. (1988). Fundamental Considerations in the Study of Inelastic and Reactive Collisions Involving Atoms in 1P Electronic States. In: Whitehead, J.C. (eds) Selectivity in Chemical Reactions. NATO ASI Series, vol 245. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3047-6_14
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DOI: https://doi.org/10.1007/978-94-009-3047-6_14
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