K. Strasburger, QUANTUM-CHEMICAL STUDY ON COMPLEXES OF THE LIH MOLECULE WITH E(-) INCLUDING CORRELATION-ENERGY(), PS AND PS(), Chemical physics letters, 253(1-2), 1996, pp. 49-52
SCF and CI energies of the LiH, LiH-, e(+)LiH, LiHPs and LiHPs(-) syst
ems have been evaluated in the extended basis set at the experimental
geometry of LiH. Electron and positron affinities of the LiH molecule
have been compared. The results indicate the importance of the correla
tion energy in positron-molecule complexes.