Electric Dipole Moment Function of the OH Molecule

The electric dipole moment function of the OH radical in the ground electronic state is constructed for internuclear distances R 0, ]. The electric dipole moment function is represented as a piecewise continuous function satisfying physically exact asymptotes and experimental values of the electric dipole moment and its derivatives for equilibrium positions of nuclei of the radical. The Padé form for the electric dipole moment function of the OH radical is also approximated. Electric dipole moment functions obtained are compared with the results of ab initio calculations.