Experimental potential energy curves have been constructed for different electronic states of
CaF, CaCl, CaI and CaH molecules by the method of Lakshman and Rao and of Morse. The
dissociation energies of the diatomic molecules have been computed by fitting an empirical
potential function to the experimental potential energy curves for the electronic ground states
of the molecules. The five parameter Hulburt—Hirschfelder function and Rao and Reddy's
modified potential function have been used. The estimated dissociation energies are …