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Self-consistent time-dependent Hartree--Fock calculations of dynamic polarizabilities, dispersion forces, and nuclear spin--spin coupling constants for the H$sub 2$ and HF molecules

Journal Article · · J. Chem. Phys., v. 63, no. 7, pp. 2996-3007
OSTI ID:4161006
A self-consistent time-dependent Hartree--Fock scheme is presented for calculating excitation frequencies, oscillator strengths, dynamic polarizabilities, dispersion forces, and indirect nuclear spin--spin coupling constants. Ab initio applications on the H$sub 2$ and HF molecules have been performed. The effect of two-particle, two-hole excitation corrections are included. The results show that the method offers an accurate and economical alternative to configuration interaction for introducing correlation in second order properties. The spin--spin coupling constants, which depend on the triplet excited states, are most influenced by the self-consistency procedure.
Research Organization:
Department of Chemistry, Aarhus University, DK-8000 Aarhus C., Denmark
NSA Number:
NSA-33-003956
OSTI ID:
4161006
Journal Information:
J. Chem. Phys., v. 63, no. 7, pp. 2996-3007, Journal Name: J. Chem. Phys., v. 63, no. 7, pp. 2996-3007; ISSN JCPSA
Country of Publication:
United States
Language:
English