  We estimate the nuclear fusion rates for the transition OH-->F from the
ground and excited molecular states and also consider effect of screening of
electric charges of nuclei by bound electrons in the case of colliding atoms O
and H. We show that the fusion rate for the molecular state is vanishingly
small while the electron screening drastically changes the rate for the
colliding atoms at kinetic energies up to hundreds of keV. The latter may be of
consequence for some astrophysical applications.
