In the mononuclear title compound, [Tb(C13H9OS3)3-(C4H8O)3]·C4H8O, the lanthanide cation is located on a threefold rotation axis and is surrounded by electron-rich ligands in an approximately octahedral geometry. One of the thienyl groups and the bound THF are disordered with 0.5:0.5 occupancy. The free THF is disordered around the threefold axis.
Acta Crystallographica E , 2011, E67 (12), m1712.