Abstract
The convergence of the many-body expansion for the interaction energy of helium is examined by performing matrix Hartree-Fock calculations on various geometrical arrangements of four helium atoms. Two-, three- and four-body interaction energies are determined. Basis set superposition effects are monitored by means of the site-site function counterpoise technique. The importance of four-body terms for certain geometries is demonstrated.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
