Spin-Orbit Coupling Matrix Elements in Electronic States of PdH

Potential energy curves for several electronic states of PdH were calculated using the multi-reference configuration interaction method, including relativistic and spin-orbit corrections. Diagonal and off-diagonal elements of the spin-orbit Hamiltonian matrix were computed for vibrational levels of the five lowest electronic states. The eigenvectors of the matrix indicate significant mixing for vibrational wavefunctions in the Ω = 3/2 states.