A Simple Magneto-Structural Correlation for Dysprosium(III) Single-Molecule Magnets with Ligands on the Anisotropy Axis

By studying pentagonal-bipyramidal dysprosium(III) single-molecule magnets (SMMs) we show that the energy barrier for magnetization reversal (<i>U<sub>eff</sub></i>) shows a linear correlation to the axial Dy-X bond lengths, adjusted for the ionic or covalent radii of the ligands bound.