11. In 1931, Henry Eyring and Michael Polanyi constructed a potential energy surface for the reaction below. 12. The potential energy surfaces ( APES ) are then obtained as the eigenvalues of this matrix. 13. The adiabatic potential energy surfaces ( APES ) are then obtained as the eigenvalues of this matrix. 14. The Zisman theory is mostly used for low energy surfaces and characterizes only the total surface energy. 15. Note that a bubble is a minimum energy surface but not a minimal surface by definition ). 16. Computational chemistry methods can also be used to calculate potential energy surfaces for reactions and determine probable mechanisms. 17. Anticrossings of diatomic energy curves have many similarities to the conical intersections of energy surfaces in polyatomic molecules. 18. The theory assumes the reaction system will pass over the lowest energy saddle point on the potential energy surface . 19. In classical molecular dynamics, one potential energy surface ( usually the ground state ) is represented in the force field. 20. The shape of the adiabatic potential-energy surface is not as important as the nature of the quantum vibrational density profile.
