A low spin manganese(IV) nitride single molecule magnet

Structural, spectroscopic and magnetic methods have been used to characterize the tris(carbene) borate compound PhB(MesIm)(3)Mn equivalent to N as a four-coordinate manganese(IV) complex with a low spin (S = 1/2) configuration. The slow relaxation of the magnetization in this complex, i.e. its singl...

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Detalles Bibliográficos
Autores: Ding, Mei, Cutsail, George E. IIIiii, Aravena Ponce, Daniel Alejandro, Amoza Dávila, Martín, Rouzières, Mathieu, Dechambenoit, Pierre, Losovyj, Yaroslav, Pink, Maren, Ruiz Sabín, Eliseo, Clérac, Rodolphe, Smith, Jeremy M.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/154600
Acceso en línea:https://hdl.handle.net/2445/154600
Access Level:acceso abierto
Palabra clave:Anisotropia
Imants
Teoria quàntica
Anisotropy
Magnets
Quantum theory
Descripción
Sumario:Structural, spectroscopic and magnetic methods have been used to characterize the tris(carbene) borate compound PhB(MesIm)(3)Mn equivalent to N as a four-coordinate manganese(IV) complex with a low spin (S = 1/2) configuration. The slow relaxation of the magnetization in this complex, i.e. its single-molecule magnet (SMM) properties, is revealed under an applied dc field. Multireference quantum mechanical calculations indicate that this SMM behavior originates from an anisotropic ground doublet stabilized by spin-orbit coupling. Consistent theoretical and experiment data show that the resulting magnetization dynamics in this system is dominated by ground state quantum tunneling, while its temperature dependence is influenced by Raman relaxation.

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