Dipyridyl-Decorated Nitronyl Nitroxide-DyIII Single-Molecule Magnet with a Record Energy Barrier of 146 K.

A nitronyl nitroxide biradical with a capping N-donor group was discovered to improve single-molecule-magnet behavior of the Dy-biradical cluster, generating a magnetic reversal barrier of 146 K. As far as we know, the effective energy barrier of the Dy compound is largest in the nitronyl nitroxide 4f system by far.