Landau-zener theory for avoided crossings applied to the gallium-silane reactions
Por:
Pacheco-Sánchez J.H., Castillo S., Luna-García H., Novaro O.
Publicada:
1 ene 2007
Resumen:
Landau-Zener Theory for avoided crossings is applied here to obtain the transition probabilities (TPs) for the lowest Gallium-Silane excited states. Considering that silane orbits the gallium atom when the insertion angle ? is used as the reaction parameter, the translational energy is for this purpose irrelevant. The nonadiabatic TP depends on the angular velocity; hence, the inertia moment is more pertinent than the mass. Avoided crossings of the two lower A' potential energy surfaces of Ga( 2P, 2S) + SiH 4 interactions have to be taken into account. The TP of the excited system HGaSiH 3 leading from one potential energy surface to another through an avoided crossing is then calculated. TPs for gallium-silane interaction are predicted using this novel approach. © 2007 Wiley Periodicals, Inc.
Filiaciones:
Pacheco-Sánchez J.H.:
Instituto Tecnológico de Toluca, Edo. Mex., Av. Tecnológico s/n, A.P. 890, Metepec 52140, Mexico
Castillo S.:
Área de Física Atómica y Molecular Aplicada, CBI, Universidad Autónoma Metropolitana-Azcapotzalco, Av. San Pablo 180, Mexico D.F. 02200, Mexico
Luna-García H.:
Área de Física Atómica y Molecular Aplicada, CBI, Universidad Autónoma Metropolitana-Azcapotzalco, Av. San Pablo 180, Mexico D.F. 02200, Mexico
Novaro O.:
Instituto de Física, UNAM, A.P. 20-364, D.F. 01000, Mexico
El Colegio Nacional, Mexico
|