SEARCH Articles Figures Tables Energy, transition energies Potential Energy Surface Molecular Structure, Transition States, and Reaction Paths Potential energy states Potential energy surface generalized transition state Potential energy surface methyl radical transition state Potential energy surfaces bifurcations, transition states Potential energy surfaces variational transition state theory Properties of the potential energy surface relevant to transition state theory Surface states Transition energies Transition state surfaces Transition state theory , development potential energy surfaces Transition state theory potential energy surface Transition-state energies