Structures, luminescence and magnetic properties of four phenoxo-O bridged Ln2 compounds: Distinct single-molecule magnets behaviors were observed in two Tb2 compounds

Magnetic study indicated that slow magnetic relaxation behaviors were observed in 2-Tb, however, no evident ac magnetic signals were observed in 3-Tb. The distinct SMMs behaviors are mainly due to the slight different coordination environments around central TbIII ions of 2 and 3.91