Understanding of the local environment is essential to comprehend the magnetic behavior of metal complexes. A series of high spin Co(II) complexes functionalized with a quadridentate ligand tris(2-pyridylmethyl)amine, and are examined with solution-based nuclear magnetic resonance (NMR) experiments. The effect of the charge-balancing counterion on the paramagnetic behavior is analyzed using variable temperature relaxation measurements. The project aims to enhance our understanding and bridge the gap between the solution and solid-state behavior in these mononuclear molecules.

Paramagnetic resonance measurements in five-coordinate cobalt complexes

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