TbRu4P12 crystallizes in the cubic Im-3 space group. Tb(1) is bonded to twelve equivalent P(1) atoms to form TbP12 cuboctahedra that share faces with eight equivalent Ru(1)P6 octahedra. Ru(1) is bonded to six equivalent P(1) atoms to form distorted RuP6 octahedra that share corners with six equivalent Ru(1)P6 octahedra and faces with two equivalent Tb(1)P12 cuboctahedra. The corner-sharing octahedral tilt angles are 62°. P(1) is bonded in a 5-coordinate geometry to one Tb(1), two equivalent Ru(1), and two equivalent P(1) atoms.
TbRu4P12 crystallizes in the cubic Im-3 space group. Tb(1) is bonded to twelve equivalent P(1) atoms to form TbP12 cuboctahedra that share faces with eight equivalent Ru(1)P6 octahedra. All Tb(1)-P(1) bond lengths are 3.11 Å. Ru(1) is bonded to six equivalent P(1) atoms to form distorted RuP6 octahedra that share corners with six equivalent Ru(1)P6 octahedra and faces with two equivalent Tb(1)P12 cuboctahedra. The corner-sharing octahedral tilt angles are 62°. All Ru(1)-P(1) bond lengths are 2.36 Å. P(1) is bonded in a 5-coordinate geometry to one Tb(1), two equivalent Ru(1), and two equivalent P(1) atoms. Both P(1)-P(1) bond lengths are 2.31 Å.