Single-molecule magnets (SMMs) exhibit unique magnetic properties related to the molecular nature of these "isolated" coordination complexes. In this study, we investigate the influence of counterions on two macrocyclic dysprosiumbased SMMs, namely, [DyL N6 (OAc) 2 ][OAc] (1) and [DyL N6 (OAc) 2 ][B(C 6 H 5 ) 4 ] (2)