Example: photodissociation of CH molecule

The cross section of the photodissociation of the CH molecule from the X2Π electronic bound state to the upper 22Σ unbound state is calculated using the corresponding ab initio potential curves. The electronic dipole moment D(R) of the X2Π–22Σ electronic transition as a function of the internuclear distance R is obtained from quantum chemical calculations. The Born–Oppenheimer approxi-mation is used for the description of the molecular energy levels. The results of calculations and a comparison of the results of calculation are shown in the figure.


Cross section of the photodissociation from the X2Π state to the 2Sup>2Σ state of the CH molecule.

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