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Characterization of van der Waals interaction potentials D{sub 4h} and T{sub d} configurations of He{sub 4}

Journal Article · · International Journal of Quantum Chemistry

Van der Waals interaction potentials of the square planar D{sub 4h} and regular tetrahedral T{sub d} configurations of He{sub 4} were examined at the matrix Hartree-Fock, many-body perturbation theory, coupled-cluster theory, and configuration interaction levels of ab initio theory. Potential energy minima, pairwise and nonpairwise additivity, group theoretical parameters, and isotope substitution effects were found to uniquely characterize these interactions.

Research Organization:
Benha Univ. (EG)
OSTI ID:
20005604
Journal Information:
International Journal of Quantum Chemistry, Journal Name: International Journal of Quantum Chemistry Journal Issue: 1 Vol. 76; ISSN IJQCB2; ISSN 0020-7608
Country of Publication:
United States
Language:
English

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