Mc. Caputo et al., THEORETICAL-STUDY OF THE MAGNETIC-PROPERTIES OF A METHANE MOLECULE INA NONUNIFORM MAGNETIC-FIELD, Physical review. A, 49(5), 1994, pp. 3445-3449
Contributions to magnetic susceptibility and magnetic shielding of the
nuclei, arising from electronic magnetic-quadrupole moments interacti
ng with a magnetic field with a spatially uniform gradient, have been
determined for a methane molecule, by a large-basis-set calculations w
ithin the random-phase approximation. The Hartree-Fock limit of accura
cy has been achieved and the quality of the calculations has been conf
irmed via tests based on sum rules for the origin dependence of the re
sponse properties.