Vibrational energy transfer efficiency in a three‐channel thermal unimolecular system. Temperature dependence

摘要: Thermal isomerization in the three‐channel cyclopropane‐1t1‐2,2d2 system was studied at 823 and 973 K presence of Kr CO2 bath gases. It found that is more efficient energy transfer from hot cyclopropane than Kr, which He. For stepladder model transfer, average removed per collision energized by a gas 〈ΔE〉 for 780±90 cm−1 520±70 933 K; while it 1220±90 800±70 K. The relative efficiency both gases βω also declines with temperature rise. 0.17 0.07 CO2, 0.40 Comparison made earlier results. A T−γ(γ∼5.5) dependence fits existing data He/cyclopropane sytems accord computational deductions Tardy Rabinovitch (Ref. 17). stronger colliders, e.g., ...