For nearly a decade, magnetic bistability was observed in complexes containing single f-element ions. In contrast, it wasn't until recently that signatures of magnetic bistability were observed for mononuclear complexes of transition metal ions. In the time since, our group has spent considerable effort in determining how to enhance the magnitudes of the spin-reversal barriers via tuning the ligand field. Results from these efforts lead us to focus on low coordinate, high-symmetry species in order to maximize magnetic anisotropy. Also of interest to us was the determination of the various factors that influence quantum tunneling of the magnetization in mononuclear complexes, which we found to be partially subdued for half-integer spin systems. Our recent results with low-coordinate, half-integer spin transition metal complexes will be discussed.

Slow magnetic relaxation in low-coordinate transition metal complexes

245th National Meeting (2013)

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