Calculations of V–V Transfer Probabilities in CO–CO Collisions

Abstract
This paper presents detailed calculations of vibration—vibration transfer probabilities in CO–CO collisions including both long-range and short-range interactions. Comparison is made with experimental data, and the results show that the relative contributions of the long- and short-range interactions to the V–V transfer probability depend on energy defect and temperature. Our calculations match the experimental data at 300°K to within 25%; at this temperature the the short-range interactions dominate in determining the transition probability for vibrational energy defects greater than 210 cm−1, while the long-range interactions dominate for smaller defects.

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