Ground-state diatomic potentials. Part 2.—Van der Waals molecules

Abstract

Potential functions are given for the ground states of 39 van der Waals diatomics, and a few excited states, by fitting the common functional form V(R)=A(1 +a₁R+a₂R²+a₃R³)exp(–a₄R)– tanh (R–R_m/2)(C₆R^–6+C₈R^–8+C₁₀R^–10), to the best literature data. These potentials have been included in DIATOMS, the SERC database of diatomic potentials.