Coordination [Co-2(II)] and [(CoZnII)-Zn-II] Helicates Showing Slow Magnetic 
Relaxation

Diego, Rosa; Pavlov, Alexander; Darawsheh, Mohanad; Aleshin, Dmitry; Nehrkorn, Joscha Paul; Nelyubina, Yulia; Roubeau, Olivier; Novikov, Valentin; Aromi, Guillem

doi:10.1021/acs.inorgchem.9b01334

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Coordination [Co-2(II)] and [(CoZnII)-Zn-II] Helicates Showing Slow Magnetic Relaxation

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Nehrkorn, Joscha Paul
Research Department DeBeer, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;

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Citation

Diego, R., Pavlov, A., Darawsheh, M., Aleshin, D., Nehrkorn, J. P., Nelyubina, Y., et al. (2019). Coordination [Co-2(II)] and [(CoZnII)-Zn-II] Helicates Showing Slow Magnetic Relaxation. Inorganic Chemistry, 58(15), 9562-9566. doi:10.1021/acs.inorgchem.9b01334.

Cite as: https://hdl.handle.net/21.11116/0000-0005-C9F9-0

Abstract

The slow magnetic relaxation of Co-II ions in the elusive intermediate geometry between the trigonal prism and antiprism has been studied on the new [Co2L3](4+) and [CoZnL3](4+) coordination helicates [L is a bis(pyrazolylpyridine) ligand]. Solution paramagnetic H-1 NMR and solid-state magnetization measurements unveil single-molecule-magnet behavior with small axial anisotropy, as predicted previously.