dc.creator | Jiménez Calzado, Carmen | es |
dc.creator | Angeli, Celestino | es |
dc.creator | Taratiel, David | es |
dc.creator | Caballol, Rosa | es |
dc.creator | Malrieu, J.P. | es |
dc.date.accessioned | 2016-10-28T10:18:15Z | |
dc.date.available | 2016-10-28T10:18:15Z | |
dc.date.issued | 2009 | |
dc.identifier.citation | Jiménez Calzado, C., Angeli, C., Taratiel, D., Caballol, . y Malrieu, J.P. (2009). Analysis of the magnetic coupling in binuclear systems. III. The role of the ligand to metal charge transfer excitations revisited. Journal of Chemical Physics, 131 (4), 1-14. | |
dc.identifier.issn | 0021-9606 | es |
dc.identifier.uri | http://hdl.handle.net/11441/48327 | |
dc.description.abstract | In magnetic coordination compounds and solids the magnetic orbitals are essentially located on
metallic centers but present some delocalization tails on adjacent ligands. Mean field variational
calculations optimize this mixing and validate a single band modelization of the intersite magnetic
exchange. In this approach, due to the Brillouin’s theorem, the ligand to metal charge transfer
LMCT excitations play a minor role. On the other hand the extensive configuration interaction
calculations show that the determinants obtained by a single excitation on the top of the LMCT
configurations bring an important antiferromagnetic contribution to the magnetic coupling.
Perturbative and truncated variational calculations show that contrary to the interpretation given in
a previous article C. J. Calzado et al., J. Chem. Phys. 116, 2728 2002 the contribution of these
determinants to the magnetic coupling constant is not a second-order one. An analytic development
enables one to establish that they contribute at higher order as a correlation induced increase in the
LMCT components of the wave function, i.e., of the mixing between the ligand and the magnetic
orbitals. This larger delocalization of the magnetic orbitals results in an increase in both the ferroand
antiferromagnetic contributions to the coupling constant | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | American Institute of Physics Publising LLC | es |
dc.relation.ispartof | Journal of Chemical Physics, 131 (4), 1-14. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Analysis of the magnetic coupling in binuclear systems. III. The role of the ligand to metal charge transfer excitations revisited | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Química Física | es |
dc.relation.publisherversion | https://dx.doi.org/10.1063/1.3185506 | es |
dc.identifier.doi | 10.1063/1.3185506 | es |
idus.format.extent | 14 p. | es |
dc.journaltitle | Journal of Chemical Physics | es |
dc.publication.volumen | 131 | es |
dc.publication.issue | 4 | es |
dc.publication.initialPage | 1 | es |
dc.publication.endPage | 14 | es |
dc.identifier.idus | https://idus.us.es/xmlui/handle/11441/48327 | |