A variational formulation finite element method approach to the calculation of vibrational wavefunctions in the domain of atom-diatom distance and angle was realized and implemented. By numerical example on the rare gas van der Waals complexes NeCO, ArNH, and ArO2, it was shown that local representation of the potential energy surface in terms of C1 tensor-product basis functions does not have deleterious effect on the theoretical convergence rate.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry