Sm3Ru is Cementite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 3-coordinate geometry to three equivalent Ru(1) atoms. In the second Sm site, Sm(2) is bonded in a distorted bent 150 degrees geometry to two equivalent Ru(1) atoms. Ru(1) is bonded in a 8-coordinate geometry to two equivalent Sm(2) and six equivalent Sm(1) atoms.
Sm3Ru is Cementite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 3-coordinate geometry to three equivalent Ru(1) atoms. There are a spread of Sm(1)-Ru(1) bond distances ranging from 2.86-3.35 Å. In the second Sm site, Sm(2) is bonded in a distorted bent 150 degrees geometry to two equivalent Ru(1) atoms. There is one shorter (2.77 Å) and one longer (2.84 Å) Sm(2)-Ru(1) bond length. Ru(1) is bonded in a 8-coordinate geometry to two equivalent Sm(2) and six equivalent Sm(1) atoms.