Direct measurements of rotation‐specific, state‐to‐state vibrational energy transfer in highly vibrationally excited acetylene

1994 ◽  
Vol 101 (2) ◽  
pp. 1108-1115 ◽  
Author(s):  
J. D. Tobiason ◽  
A. L. Utz ◽  
F. F. Crim
1998 ◽  
Vol 16 (7) ◽  
pp. 838-846 ◽  
Author(s):  
A. S. Kirillov

Abstract. The first-order perturbation approximation is applied to calculate the rate coefficients of vibrational energy transfer in collisions involving vibrationally excited molecules in the absence of non-adiabatic transitions. The factors of molecular attraction, oscillator frequency change, anharmonicity, 3-dimensionality and quasiclassical motion have been taken into account in the approximation. The analytical expressions presented have been normalized on experimental data of VT-relaxation times in N2 and O2 to obtain the steric factors and the extent of repulsive exchange potentials in collisions N2-N2 and O2-O2. The approach was applied to calculate the rate coefficients of vibrational-vibrational energy transfer in the collisions N2-N2, O2-O2 and N2-O2. It is shown that there is good agreement between our calculations and experimental data for all cases of energy transfer considered.Key words. Ionosphere (Auroral ionosphere; ion chemistry and composition). Atmospheric composition and structure (Aciglow and aurora).


1992 ◽  
Vol 96 (7) ◽  
pp. 5111-5122 ◽  
Author(s):  
Xueming Yang ◽  
Eun H. Kim ◽  
Alec M. Wodtke

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