Tuning luminescence of didysprosium single-molecule magnets with π-conjugated/non-conjugated bridging ligand

Here, we reported two didysprosium single-molecule magnets constructed with {Dy(bbpen)(MeOH)} subunits and -conjugated tpb or non-conjugated tpcb bridge. The former exhibits extremely weak luminescence that make it difficult to simulate its emission spectra. However, the later shows obviously enhanced and well-resloved luminescence, which helps us to gain knowledge about the magneto-optical correlation and the relevant magnetic energy levels.