Knowledge Bank

Radiative charge transfer with atomic hydrogen is described by: $$X^{+n} + H {\rightarrow} X^{+(n - 1)} + H^{+} + h _{\nu}.$$ In the present study, $n=2,3$ for $X = $C, and $n=2$ for $X = $N. Ab initioh calculations of the rate coefficients will be described. All molecular valence states in the exit channel which have a dipole allowed transition from the states of the entrance channel have been considered. The rate coefficients increase slowly with increasing temperature and attain values between $2\times 10-14$ and $6\times 10-14$ $cm3$ $sec-1$ at $104$ K.