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Single-ion magnetic anisotropy in a vacant octahedral Co(II) complex

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The first example of a pentacoordinate CoII single-ion magnet based on a P-donor ligand with vacant octahedral coordination geometry is reported here. Thorough magnetic measurements reveal the presence of field induced slow relaxation behavior with an easy-plane magnetic anisotropy. The combined theoretical and experimental studies disclose that direct and quantum tunneling processes become dominant at low temperature to relax the magnetization; however, from the thermal dependence of relaxation time it can be observed that the optical or acoustic Raman processes become important to the overall relaxation process.

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Articles publicats en revistes (Química Inorgànica i Orgànica)

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Single-ion magnetic anisotropy in a vacant octahedral Co(II) complex