“…The PES of the electronic ground state for this model is an ndimensional paraboloid where n is the number of internal degrees of freedom [2]. Border-line cases studied are the large amplitude motion of light atoms, like an H atom in HCN bending [3,4], or the case of quasilinear molecules, like HCNO [5 -7].…”
Valley -ridge-inflection points (VRI) of a potential energy surface (PES) may have a strong relation to bifurcations of chemical reaction pathways. We explain how a reaction path has to be defined to describe the bifurcation of a 'valley' of the PES. We propose a classification of different VRI events: valley bifurcation, ridge bifurcation, and the mixed case in between. Chemical implications of the different cases are discussed. q
“…It is essential to use the correct form of the transformation matrix so that the results are independent of the transformation. This has been the subject of a paper by Winnewisser and Watson [56]. In the current work, the transformation…”
Section: Transformation From Cartesian Coordinates To Internal Coordimentioning
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