Analytical potential curves of some hydride molecules using algebraic and energy-consistent method

Based on the algebraic method (AM) and the energy consistent method (ECM), an AM-ECM protocol for analytical potential energy curves of stable diatomic electronic states is proposed as functions of the internuclear distance. Applications of the AM-ECM to the 6 hydride electronic states of HF-X-1 Sigma(+), DF-X-1 Sigma(+), (DCl)-Cl-35-X-1 Sigma(+), (LiH)-Li-6-X-1 Sigma(+), (LiH)-Li-7-X-1 Sigma(+), and (LiD)-Li-7-X-1 Sigma(+) show that the AM-ECM potentials are in excellent agreement with the experimental RKR data and the full AM-RKR data, and that the AM-ECM can obtain reliable analytical potential energies in the molecular asymptotic and dissociation region for these molecular electronic states.