Spectroscopic Determination of the Electronic Structure of a Uranium Single-Ion Magnet

Chemistry-A European Journal Accepted, (2018)

Spectroscopic Determination of the Electronic Structure of a Uranium Single-Ion Magnet

J.T. Coutinho, M. Perfetti, José J. Baldoví, M.A. Antunes, P.P. Hallmen, H. Bamberger, I. Crassee, M. Orlita, M. Almeida, J. van Slageren, L. C.J. Pereira

Early actinide ions have large spin orbit couplings and crystal field interactions, leading to large anisotropies. The success using actinides as single-molecule magnets has so far been modest, underlining the need for rational strategies. Indeed, the electronic structure of actinide single-molecule magnets and its relation to the magnetic properties is largely unexplored. Here we investigate a uranium(III) single molecule magnet, [UIII{SiMe2NPh}3-tacn)(OPPh3)] (2) by means of a combination of magnetic, spectroscopic and theoretical methods elucidating the origin of its static and dynamic magnetic properties.

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