Molecular and all-solid DFT studies of the magnetic and chemical bonding properties within KM[Cr(CN)6] (M = V, Ni) complexes
Langue
en
Article de revue
Ce document a été publié dans
Chemical Physics. 2008, vol. 352, n° 1-3, p. 85-91
Elsevier
Résumé en anglais
A study at both the molecular and extended solid levels in the framework of DFT is carried out for KM[Cr(CN)6] (M = V, Ni). From molecular calculations, the exchange parameters J are obtained, pointing to the expected ...Lire la suite >
A study at both the molecular and extended solid levels in the framework of DFT is carried out for KM[Cr(CN)6] (M = V, Ni). From molecular calculations, the exchange parameters J are obtained, pointing to the expected magnetic ground states, i.e., antiferromagnetic for M = V with J = 296.5 cm1 and ferromagnetic for M = Ni with J = +40.5 cm1. From solid state computations the same ground states and J magnitudes are confirmed from energy differences. Furthermore, an analysis of the site projected density of states and of the chemical bonding is developed in which the cyanide ion linkage is analyzed addressing some isomerism aspects.< Réduire
Mots clés en anglais
DFT
Exchange parameters
Ferromagnets
Antiferromagnets
ASW
Gaussian and VASP methods
IR Raman
Origine
Importé de halUnités de recherche