Propensity for super energy transfer as a function of collision energy for the H + C2H2 system

Highlights: • The super energy transfer phenomena can exist in a large collision energy region. • The complex-formation mechanism plays a crucial role for the super energy transfer. • The average energy transfer increases almost linearly with the collision energy. In a super energy transfer process, a significant portion of the initial relative collision energy can be transferred to the internal vibrational energy of the target molecule through chemical complex formation. The phenomenon of super energy transfer for the H + C₂H₂ system is investigated in a collision energy region from 25 to 65 kcal/mol. Based on the quasi-classical trajectory calculations, it has been found that the super energy transfer can occur for all the collision energies considered. The chemical-complex-formation mechanism plays an essential role for the super energy transfer process. Additionally, the average energy transfer increases almost linearly with the collision energy.