B. Narasimhamurthy

On the Dissociation Energy of AsP Molecule

Abstract For the electronic ground state, X1∑+, of AsP molecule, the true potential energy curve is constructed by the method of Rydberg-Klein-Rees. By curve fitting of the modified form of Lippincotts three-parameter empirical potential function, the dissociation energy is estimated to be 4.46±0.15 eV.

Dissociation energies for the electronic ground states of BeCl, GaH and LiH

The dissociation energies of the diatomic molecules BeCl, GaH and LiH have been computed by fitting empirical potential functions to the true potential energy curves for the electronic ground states of the molecules. The Lippincott three-parameter potential function, the five-parameter Hulburt-Hirschfelder potential function and the Szöke and Baitz electronegativity potential function have been used. The estimated dissociation energiesD00 are 4·50, 3·09 and 2·94 eV for BeCl, GaH and LiH respectively. These values compare well with the experimental values.

Carbon phosphide (B2 Σ + — A2 Π i) band system: RKR Franck-Condon factors andr-centroids

Franck-Condon factors andr-centroids based on Rydberg-Klein-Rees potential have been computed for the CP (B2Σ+ —A2Πi) band system. These results are compared with the Morse values and discussed.

Potential energy curves for theB 2 Σ andX 2 Σ states of scandium monoxide

For theB2Σ andX2Σ states of scandium monoxide, the potential energy curves are constructed by the Rydberg-Klein-Rees and the Morse methods. Morse model is shown to be adequate for the (B→X) band system of ScO. The re values are found to be 1.717 Å and 1.665 Å for theB andX states respectively.