A low spin manganese() nitride single molecule magnet

Structural, spectroscopic and magnetic methods have been used to characterize the tris(carbene)borate compound PhB(MesIm) 3 Mn&z.tbd;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-...

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Bibliographic Details
Published in:Chemical science (Cambridge) 2016-01, Vol.7 (9), p.6132-614
Main Authors: Ding, Mei, Cutsail III, George E, Aravena, Daniel, Amoza, Martín, Rouzières, Mathieu, Dechambenoit, Pierre, Losovyj, Yaroslav, Pink, Maren, Ruiz, Eliseo, Clérac, Rodolphe, Smith, Jeremy M
Format: Article
Language:English
Subjects:
Chemical Sciences
Dynamical systems
Dynamics
Grounds
Magnetic methods
Magnetic properties
Magnetization
Material chemistry
Mathematical analysis
Quantum mechanics
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Summary:Structural, spectroscopic and magnetic methods have been used to characterize the tris(carbene)borate compound PhB(MesIm) 3 Mn&z.tbd;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. Structural, spectroscopic and magnetic methods have been used to characterize the tris(carbene)borate compound PhB(MesIm) 3 Mn&z.tbd;N as a four-coordinate manganese( iv ) complex with a low spin ( S = 1/2) configuration.
ISSN:2041-6520
2041-6539
DOI:10.1039/c6sc01469k