The ‘‘most likely’’ potential energy curve for the lowest 3Σ+<i>u</i> state of Li2

Abstract

A most likely potential curve for the 1 3Σ+u state of Li2 with constants De=340.6±15 cm−1, ωe=65.6±0.9 cm−1, ωexe=3.16±0.04 cm−1, Re=7.77±0.22a0 is obtained by a judicious combination of three disparate ab initio computations.