“…In the era of the rapid development of information technology, single-molecule magnets (SMMs) have received great attention as molecule-based magnetic materials with potential applications in fields such as ultra-high-density data storage, 1 quantum computing, 2 and molecular spintronics. 3,4 Compared with transition metal ions, lanthanide ions have unquenched orbital angular momentum and strong spin–orbit coupling with their internal 4f electrons shielded by 5s and 5p electrons, 5,6 which easily favor strong magnetic anisotropy. 7–10 Since the first lanthanide SMMs of (Bu 4 N)[Ln(Pc) 2 ] (Ln = Tb or Dy; Pc = phthalocyanine) in 2003, lanthanide SMMs have been developed rapidly.…”