Stabilization calculations of resonance energies for the coplanar reactions H+FH and H+H₂

We propose that the second moments of a generalized radius be used as a criterion to select the "best" resonance wave function and energy from a series of stabilization calculations performed as a function of a real scale parameter. The method is tested for the collinear H+FH→HF+H reaction and the coplanar H+H₂→H₂+H reaction and is then used to predict 12 resonance energies for the coplanar H+FH→HF+H reaction. All calculations are performed on model potential energy surfaces to allow for comparison with previous related theoretical studies.