Tb2Rh3Sn5 crystallizes in the orthorhombic Cmc2_1 space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 8-coordinate geometry to two equivalent Rh(3), two equivalent Sn(2), two equivalent Sn(3), and two equivalent Sn(5) atoms. In the second Tb site, Tb(2) is bonded in a 13-coordinate geometry to one Rh(3), four equivalent Rh(1), two equivalent Sn(1), two equivalent Sn(3), and four equivalent Sn(4) atoms. There are three inequivalent Rh sites. In the first Rh site, Rh(3) is bonded in a 9-coordinate geometry to one Tb(2), two equivalent Tb(1), one Sn(2), one Sn(3), two equivalent Sn(1), and two equivalent Sn(4) atoms. In the second Rh site, Rh(1) is bonded in a 9-coordinate geometry to four equivalent Tb(2), one Sn(1), two equivalent Sn(3), and two equivalent Sn(4) atoms. In the third Rh site, Rh(2) is bonded in a 7-coordinate geometry to one Sn(1), three equivalent Sn(2), and three equivalent Sn(5) atoms. There are five inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 4-coordinate geometry to two equivalent Tb(2), one Rh(1), one Rh(2), and two equivalent Rh(3) atoms. In the second Sn site, Sn(2) is bonded in a 6-coordinate geometry to two equivalent Tb(1), one Rh(3), and three equivalent Rh(2) atoms. In the third Sn site, Sn(3) is bonded in a 8-coordinate geometry to two equivalent Tb(1), two equivalent Tb(2), one Rh(3), two equivalent Rh(1), and one Sn(5) atom. In the fourth Sn site, Sn(4) is bonded in a 6-coordinate geometry to four equivalent Tb(2), two equivalent Rh(1), and two equivalent Rh(3) atoms. In the fifth Sn site, Sn(5) is bonded in a 5-coordinate geometry to two equivalent Tb(1), three equivalent Rh(2), and one Sn(3) atom.
Tb2Rh3Sn5 crystallizes in the orthorhombic Cmc2_1 space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 8-coordinate geometry to two equivalent Rh(3), two equivalent Sn(2), two equivalent Sn(3), and two equivalent Sn(5) atoms. Both Tb(1)-Rh(3) bond lengths are 3.26 Å. Both Tb(1)-Sn(2) bond lengths are 3.22 Å. Both Tb(1)-Sn(3) bond lengths are 3.17 Å. Both Tb(1)-Sn(5) bond lengths are 3.18 Å. In the second Tb site, Tb(2) is bonded in a 13-coordinate geometry to one Rh(3), four equivalent Rh(1), two equivalent Sn(1), two equivalent Sn(3), and four equivalent Sn(4) atoms. The Tb(2)-Rh(3) bond length is 2.86 Å. There are two shorter (3.12 Å) and two longer (3.35 Å) Tb(2)-Rh(1) bond lengths. Both Tb(2)-Sn(1) bond lengths are 3.40 Å. There is one shorter (3.32 Å) and one longer (3.34 Å) Tb(2)-Sn(3) bond length. There are two shorter (3.16 Å) and two longer (3.35 Å) Tb(2)-Sn(4) bond lengths. There are three inequivalent Rh sites. In the first Rh site, Rh(3) is bonded in a 9-coordinate geometry to one Tb(2), two equivalent Tb(1), one Sn(2), one Sn(3), two equivalent Sn(1), and two equivalent Sn(4) atoms. The Rh(3)-Sn(2) bond length is 2.67 Å. The Rh(3)-Sn(3) bond length is 2.70 Å. Both Rh(3)-Sn(1) bond lengths are 2.91 Å. Both Rh(3)-Sn(4) bond lengths are 2.78 Å. In the second Rh site, Rh(1) is bonded in a 9-coordinate geometry to four equivalent Tb(2), one Sn(1), two equivalent Sn(3), and two equivalent Sn(4) atoms. The Rh(1)-Sn(1) bond length is 2.78 Å. Both Rh(1)-Sn(3) bond lengths are 2.64 Å. There is one shorter (2.72 Å) and one longer (2.78 Å) Rh(1)-Sn(4) bond length. In the third Rh site, Rh(2) is bonded in a 7-coordinate geometry to one Sn(1), three equivalent Sn(2), and three equivalent Sn(5) atoms. The Rh(2)-Sn(1) bond length is 2.74 Å. There are two shorter (2.76 Å) and one longer (2.80 Å) Rh(2)-Sn(2) bond length. There are two shorter (2.73 Å) and one longer (2.74 Å) Rh(2)-Sn(5) bond length. There are five inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 4-coordinate geometry to two equivalent Tb(2), one Rh(1), one Rh(2), and two equivalent Rh(3) atoms. In the second Sn site, Sn(2) is bonded in a 6-coordinate geometry to two equivalent Tb(1), one Rh(3), and three equivalent Rh(2) atoms. In the third Sn site, Sn(3) is bonded in a 8-coordinate geometry to two equivalent Tb(1), two equivalent Tb(2), one Rh(3), two equivalent Rh(1), and one Sn(5) atom. The Sn(3)-Sn(5) bond length is 3.15 Å. In the fourth Sn site, Sn(4) is bonded in a 6-coordinate geometry to four equivalent Tb(2), two equivalent Rh(1), and two equivalent Rh(3) atoms. In the fifth Sn site, Sn(5) is bonded in a 5-coordinate geometry to two equivalent Tb(1), three equivalent Rh(2), and one Sn(3) atom.