Few magnetometry studies have been reported on multinuclear PN-bridged systems. On one hand, negligible exchange coupling was found for a dimeric Dy III 2 complex bridged by two PN ligands. In contrast, PN-bridged, homovalent Ni I 4 and Co I 4 complexes displayed Curie-Weiss behavior in the temperature range of 30~150 K. Taken together, these reports and the magnetometry data for 1 corroborate that bridging PN ligands can mediate strong antiferromagnetic exchange interactions with later transition metals.