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Energy exchange processes.

Quantitative data on the cross sections and rate constants of the processes of the generation and relaxation of electronically and vibrationally excited particles are of high importance for kinetic modeling in materials science, environmental chemistry, plasma chemistry, and plasma processing. State-of-the-art models of the generation and relaxation of electronically and vibrationally excited particles are based on qualitative physical ideas about the character of electronic potential surfaces of the systems and their dynamics. The main simplification of dynamics in all models is the use of quasiclassical or classical approximations treating the motion of nuclei.

  • Vibrational energy exchange
    • V-T energy transfer
    • V-R-T energy transfer
    • V-V energy transfer
  • Electronic-vibrational-translational energy exchange
    • E-E energy transfer
    • E-V-T energy transfer
Examples:

Electronic deactivation in atomic collisions O(1D) + Ar -> O(3P) + Ar

Vibrational energy transfer in collisions of N2 with He

Quenching of the radiating state of diatomic molecule due to collisional intramolecular ev transition

Dissociative energy transfer Ar*+H2O->Ar +H+OH(A,X)

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