Abstract

Ab initio calculation of electron affinities and level structures have been obtained by adding a simple approximate correlation-potential term to the usual pseudo-relativistic Hartree-Fock Hamiltonian. Results for the following systemsthe 2s2p2 and 2p3 configurations of Be− the p3 configurations of C−, Si−, Ge−, Sn− and Pb− the s2p and sp2 configurations of Mg−, Ca−, Sr−, Ba− and Ra− and the s2p and sp2 configurations of Zn−, Cd− and Hg−are reported here and compared, when possible, with earlier theoretical and experimental results.

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