# A Dysprosium Complex with Two Quasi-Degenerate Easy Axes

## TL;DR

This paper explores a dysprosium complex with two nearly identical magnetic easy axes, revealing new possibilities for molecular materials.

## Contribution

The discovery of two quasi-degenerate easy axes in a DyIII complex through targeted molecular modifications.

## Key findings

- Two low-lying states with strong easy axis anisotropy were found, tilted by ∼90°.
- The magnetic anisotropy was rationalized using ab initio calculations and experimental techniques.
- Molecular modifications validated the findings and expanded their applicability.

## Abstract

The synergistic use of synthesis, single crystal X-ray
Diffraction,
torque and SQUID magnetometry, luminescence, and ab initio calculations is presented here to unambiguously unfold the magnetic
anisotropy of an apparently ordinary low-symmetry eight-coordinated
DyIII complex. Surprisingly, we found two low-lying states
extremely close in energy, both displaying a strong easy axis anisotropy,
tilted by ∼90°. Such a result has been rationalized, and
its validity was extended upon targeted molecular modifications. These
findings open new possibilities for the exploitation of such a kind
of magnetic anisotropy in molecular materials.