HoRh5Si3 crystallizes in the hexagonal P6_3/m space group. Ho(1) is bonded in a 12-coordinate geometry to two equivalent Rh(1), two equivalent Rh(2), two equivalent Rh(5), two equivalent Si(1), two equivalent Si(2), and two equivalent Si(3) atoms. There are five inequivalent Rh sites. In the first Rh site, Rh(4) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Si(2) atoms. In the second Rh site, Rh(5) is bonded in a 4-coordinate geometry to two equivalent Ho(1), one Si(3), and three equivalent Si(2) atoms. In the third Rh site, Rh(1) is bonded in a 4-coordinate geometry to two equivalent Ho(1), one Si(1), and three equivalent Si(3) atoms. In the fourth Rh site, Rh(2) is bonded in a 6-coordinate geometry to two equivalent Ho(1), one Si(1), one Si(2), and two equivalent Si(3) atoms. In the fifth Rh site, Rh(3) is bonded in a 5-coordinate geometry to one Si(3) and four equivalent Si(1) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 6-coordinate geometry to two equivalent Ho(1), one Rh(1), one Rh(2), and four equivalent Rh(3) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to two equivalent Ho(1), one Rh(2), three equivalent Rh(4), and three equivalent Rh(5) atoms. In the third Si site, Si(3) is bonded in a 9-coordinate geometry to two equivalent Ho(1), one Rh(3), one Rh(5), two equivalent Rh(2), and three equivalent Rh(1) atoms.
HoRh5Si3 crystallizes in the hexagonal P6_3/m space group. Ho(1) is bonded in a 12-coordinate geometry to two equivalent Rh(1), two equivalent Rh(2), two equivalent Rh(5), two equivalent Si(1), two equivalent Si(2), and two equivalent Si(3) atoms. Both Ho(1)-Rh(1) bond lengths are 3.09 Å. Both Ho(1)-Rh(2) bond lengths are 3.04 Å. Both Ho(1)-Rh(5) bond lengths are 3.12 Å. Both Ho(1)-Si(1) bond lengths are 3.06 Å. Both Ho(1)-Si(2) bond lengths are 3.07 Å. Both Ho(1)-Si(3) bond lengths are 3.03 Å. There are five inequivalent Rh sites. In the first Rh site, Rh(4) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Si(2) atoms. There is one shorter (2.32 Å) and two longer (2.49 Å) Rh(4)-Si(2) bond lengths. In the second Rh site, Rh(5) is bonded in a 4-coordinate geometry to two equivalent Ho(1), one Si(3), and three equivalent Si(2) atoms. The Rh(5)-Si(3) bond length is 2.38 Å. There is one shorter (2.37 Å) and two longer (2.46 Å) Rh(5)-Si(2) bond lengths. In the third Rh site, Rh(1) is bonded in a 4-coordinate geometry to two equivalent Ho(1), one Si(1), and three equivalent Si(3) atoms. The Rh(1)-Si(1) bond length is 2.40 Å. There is one shorter (2.38 Å) and two longer (2.48 Å) Rh(1)-Si(3) bond lengths. In the fourth Rh site, Rh(2) is bonded in a 6-coordinate geometry to two equivalent Ho(1), one Si(1), one Si(2), and two equivalent Si(3) atoms. The Rh(2)-Si(1) bond length is 2.42 Å. The Rh(2)-Si(2) bond length is 2.39 Å. Both Rh(2)-Si(3) bond lengths are 2.49 Å. In the fifth Rh site, Rh(3) is bonded in a 5-coordinate geometry to one Si(3) and four equivalent Si(1) atoms. The Rh(3)-Si(3) bond length is 2.35 Å. There are two shorter (2.49 Å) and two longer (2.51 Å) Rh(3)-Si(1) bond lengths. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 6-coordinate geometry to two equivalent Ho(1), one Rh(1), one Rh(2), and four equivalent Rh(3) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to two equivalent Ho(1), one Rh(2), three equivalent Rh(4), and three equivalent Rh(5) atoms. In the third Si site, Si(3) is bonded in a 9-coordinate geometry to two equivalent Ho(1), one Rh(3), one Rh(5), two equivalent Rh(2), and three equivalent Rh(1) atoms.