Sm2Rh3Ge5 crystallizes in the monoclinic C2/c space group. Sm(1) is bonded in a 1-coordinate geometry to two equivalent Ge(3), two equivalent Ge(4), and four equivalent Ge(1) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(2) is bonded in a 6-coordinate geometry to one Ge(2), one Ge(4), and four equivalent Ge(1) atoms. In the second Rh site, Rh(1) is bonded in a 5-coordinate geometry to one Ge(1), one Ge(2), one Ge(4), and two equivalent Ge(3) atoms. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to four equivalent Sm(1), one Rh(1), two equivalent Rh(2), one Ge(2), and one Ge(4) atom. In the second Ge site, Ge(2) is bonded in a 3-coordinate geometry to one Rh(2), two equivalent Rh(1), and two equivalent Ge(1) atoms. In the third Ge site, Ge(3) is bonded in a 8-coordinate geometry to four equivalent Sm(1) and four equivalent Rh(1) atoms. In the fourth Ge site, Ge(4) is bonded in a 9-coordinate geometry to four equivalent Sm(1), one Rh(2), two equivalent Rh(1), and two equivalent Ge(1) atoms.
Sm2Rh3Ge5 crystallizes in the monoclinic C2/c space group. Sm(1) is bonded in a 1-coordinate geometry to two equivalent Ge(3), two equivalent Ge(4), and four equivalent Ge(1) atoms. There is one shorter (3.16 Å) and one longer (3.31 Å) Sm(1)-Ge(3) bond length. There is one shorter (3.23 Å) and one longer (3.31 Å) Sm(1)-Ge(4) bond length. There are a spread of Sm(1)-Ge(1) bond distances ranging from 3.03-3.32 Å. There are two inequivalent Rh sites. In the first Rh site, Rh(2) is bonded in a 6-coordinate geometry to one Ge(2), one Ge(4), and four equivalent Ge(1) atoms. The Rh(2)-Ge(2) bond length is 2.58 Å. The Rh(2)-Ge(4) bond length is 2.73 Å. There are two shorter (2.52 Å) and two longer (2.56 Å) Rh(2)-Ge(1) bond lengths. In the second Rh site, Rh(1) is bonded in a 5-coordinate geometry to one Ge(1), one Ge(2), one Ge(4), and two equivalent Ge(3) atoms. The Rh(1)-Ge(1) bond length is 2.42 Å. The Rh(1)-Ge(2) bond length is 2.47 Å. The Rh(1)-Ge(4) bond length is 2.53 Å. There is one shorter (2.50 Å) and one longer (2.52 Å) Rh(1)-Ge(3) bond length. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to four equivalent Sm(1), one Rh(1), two equivalent Rh(2), one Ge(2), and one Ge(4) atom. The Ge(1)-Ge(2) bond length is 2.69 Å. The Ge(1)-Ge(4) bond length is 2.69 Å. In the second Ge site, Ge(2) is bonded in a 3-coordinate geometry to one Rh(2), two equivalent Rh(1), and two equivalent Ge(1) atoms. In the third Ge site, Ge(3) is bonded in a 8-coordinate geometry to four equivalent Sm(1) and four equivalent Rh(1) atoms. In the fourth Ge site, Ge(4) is bonded in a 9-coordinate geometry to four equivalent Sm(1), one Rh(2), two equivalent Rh(1), and two equivalent Ge(1) atoms.