The CN + N collision system is of interest in the area of high-temperature atmospheric reaction at the hypersonic flight regime. During the re-entry of a hypersonic spacecraft into the atmosphere, the gas surrounding the deck of the vehicles suffers complex processes, such as changes in chemical compositions, redistribution through vibrational, translational, rotational, and electronic modes, emission and absorption of radiation, among others1-4.
Models of the thermochemistry in the re-entry flows require the knowledge of accurate rate coefficients for the reaction C+N2 ⇌ CN+N. For this, an accurate full-dimensional potential energy surface (PES) needs to be developed.

High temperature collision of CN + N

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