tions of cross sections, rate constants, transition probabilities, or dynamical ... systems including the chemical reactions H + p-H2 + o-H2 + H or 3H. [1-19] ..... The potential energy change as F-H-H is bent from collinear .... 7.3(-11)b. 5.7 (-12)C. L4(-11)C,d. 3.9(-11)d. To try to learn the nature of the potential energy surface in.