Electron affinities of halogen atoms

Abstract

Expressions for the electron affinities of halogen atoms have been obtained by consideration of five different forms of interaction potential. These expressions have been used to calculate electron affinities for F, Cl, Br, and l atoms from molecular constants for 20 alkali-metal halides. In view of the approximations involved, the results agree well with the only reliable experimental values available, and also with values obtained from lattice energy measurements. The relative effects of the various potential functions upon the results are discussed.