“…From Table 2 we can see all the dimeric complexes (2Dy, 4Dy, and 6Dy) possess much higher energy barriers, U eff = 1089(6) K for 2Dy, 1106(5) K for 4Dy, and 704(10) K for 6Dy, if compared to their corresponding monomers, U eff = 830(7) K for 1Dy, 940(5) K for 3Dy and none for 5Dy@5Y (Table 2). It's worth noting that the U eff values of 2Dy and 4Dy above 1000 K are very high for polynuclear SMMs (Wang, et al, 2021;Han, et al, 2020;Krylov, et al, 2017;Gould, et al, 2020;Meng, et al, 2020). The only higher value is reported in the compound Dy 2 ScN@C 80 -I h with U eff = 1735 G 21 K (Krylov, et al, 2017).…”