Ab initio study of the ground state properties of molecular oxygen
2004 (English)In: Spectrochimica Acta Part A - Molecular and Biomolecular Spectroscopy, ISSN 1386-1425, Vol. 60, no 5, 1027-1041 p.Article in journal (Refereed) Published
The electric and magnetic properties of the ground state of oxygen molecule are calculated by multiconfiguration self-consisted field (MCSCF) method and compared with experimental data: the quadrupole moment, polarizability, the O-17 nuclear quadrupole coupling constant, magnetizability tensor, nuclear spin-rotation Coupling constant and rotational g factor. The last two constants are calculated for all possible isotope modifications. The rotational, ESR and NMR spectra are discussed. Fermi-contact hyperfine coupling parameter is additionally estimated by different methods. The NMR chemical shielding tensor for (OO)-O-17-O-16 species at high temperature limit (without electron spin contribution) is predicted. Potential energy curves for 10 excited bound states and the internuclear distance dependence of the studied properties are also presented.
Place, publisher, year, edition, pages
2004. Vol. 60, no 5, 1027-1041 p.
dioxygen, quadrupole moment, polarizability, magnetic propertics, hyperfine coupling constants, ESR and NMR spectra
Biochemistry and Molecular Biology
IdentifiersURN: urn:nbn:se:kth:diva-45014DOI: 10.1016/S1386-1425(03)00334-2ISI: 000221206300005ScopusID: 2-s2.0-1842832022OAI: oai:DiVA.org:kth-45014DiVA: diva2:451760
QC 201110272011-10-272011-10-262011-10-27Bibliographically approved