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Spin densities in manganese molecular cluster : [Mn3L4](ClO4)2(H2O)2

AuthorsRodríguez-Blanco, C.; Campo, Javier; Rodríguez-Velamazán, J. A.; Gillon, Béatrice; Luzón, Javier; Sánchez Costa, J.
Issue Date2012
CitationICM 2012
AbstractThe molecular cluster [Mn3L4](ClO4)2(H2O)2, (HL=2-methoxy-6-(pyridine-2-ylhydrazono-methyl)-phenol) has been described as an almost lineal trimer of Mn(II) in a high spin configuration with two isotropic magnetic interactions: nearest neighbours and next nearest neighbours interactions. One striking fact is the experimental EPR g factor of 2.14 for such an isotropic system. Due to its isotropic and not degenerated nature, the system is an ideal benchmark to investigate the interplay of the magnetic interactions in systems with several magnetic centers and more than one electron per magnetic center. In this contribution we will show how an in deep study of the system through the combination of several experimental and theoretical methods (polarized neutron diffraction at ILL and LLB, magnetic measurements, Density Functional Theory and spin Hamiltonian models) has allowed us to demonstrate the isotropic nature of the system and the anti-ferromagnetic character of the intra-molecular magnetic interactions.
DescriptionResumen del trabajo presentado a la 19th International Conference on Magnetism celebrada en Korea del 8 al 13 de julio de 2012.
Appears in Collections:(ICMA) Comunicaciones congresos
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