An atom–atom encounter model of energy transfer from polyatomic molecules
Abstrak
The atom–atom encounter model for collisional energy transfer by monatomic colliders previously developed for diatomics [M.G. Sceats, Chem. Phys. Lett. 151, 281 (1988)] is extended to polyatomic molecules. For small molecules, such as triatomics, the density of states is sufficiently low at high energies that the result can be enumerated for each state. For large polyatomics a statistical approach based on either microcanonical or effective canonical distributions can be used when independent degrees of freedom are assumed. An effective anharmonicity at high energy is incorporated by inclusion of diagonal terms for these independent degrees of freedom. The primary feature of the model is that it accounts for kinematic effects, such as momentum transfer efficiency and the adiabatic nature of collisions, which are not accounted for in ergodic theories of energy transfer.
Penulis (1)
Mark G. Sceats
Akses Cepat
- Tahun Terbit
- 1989
- Bahasa
- en
- Total Sitasi
- 8×
- Sumber Database
- CrossRef
- DOI
- 10.1063/1.457349
- Akses
- Terbatas