TbPdSi crystallizes in the orthorhombic Pnma space group. There are three inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 12-coordinate geometry to one Pd(2), two equivalent Pd(3), three equivalent Pd(1), one Si(3), two equivalent Si(1), and three equivalent Si(2) atoms. In the second Tb site, Tb(2) is bonded in a 12-coordinate geometry to one Pd(3), two equivalent Pd(2), three equivalent Pd(1), one Si(1), two equivalent Si(3), and three equivalent Si(2) atoms. In the third Tb site, Tb(3) is bonded in a 12-coordinate geometry to three equivalent Pd(2), three equivalent Pd(3), three equivalent Si(1), and three equivalent Si(3) atoms. There are three inequivalent Pd sites. In the first Pd site, Pd(3) is bonded in a 10-coordinate geometry to one Tb(2), two equivalent Tb(1), three equivalent Tb(3), one Pd(1), one Si(1), and two equivalent Si(3) atoms. In the second Pd site, Pd(1) is bonded in a 10-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), one Pd(3), and three equivalent Si(2) atoms. In the third Pd site, Pd(2) is bonded in a 10-coordinate geometry to one Tb(1), two equivalent Tb(2), three equivalent Tb(3), one Si(3), and three equivalent Si(1) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 10-coordinate geometry to one Tb(2), two equivalent Tb(1), three equivalent Tb(3), one Pd(3), and three equivalent Pd(2) atoms. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), three equivalent Pd(1), and one Si(3) atom. In the third Si site, Si(3) is bonded in a 10-coordinate geometry to one Tb(1), two equivalent Tb(2), three equivalent Tb(3), one Pd(2), two equivalent Pd(3), and one Si(2) atom.
TbPdSi crystallizes in the orthorhombic Pnma space group. There are three inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 12-coordinate geometry to one Pd(2), two equivalent Pd(3), three equivalent Pd(1), one Si(3), two equivalent Si(1), and three equivalent Si(2) atoms. The Tb(1)-Pd(2) bond length is 3.07 Å. Both Tb(1)-Pd(3) bond lengths are 3.11 Å. There is one shorter (2.94 Å) and two longer (3.05 Å) Tb(1)-Pd(1) bond lengths. The Tb(1)-Si(3) bond length is 3.13 Å. Both Tb(1)-Si(1) bond lengths are 3.07 Å. There is one shorter (3.11 Å) and two longer (3.20 Å) Tb(1)-Si(2) bond lengths. In the second Tb site, Tb(2) is bonded in a 12-coordinate geometry to one Pd(3), two equivalent Pd(2), three equivalent Pd(1), one Si(1), two equivalent Si(3), and three equivalent Si(2) atoms. The Tb(2)-Pd(3) bond length is 3.16 Å. Both Tb(2)-Pd(2) bond lengths are 3.20 Å. There are two shorter (3.11 Å) and one longer (3.17 Å) Tb(2)-Pd(1) bond length. The Tb(2)-Si(1) bond length is 2.97 Å. Both Tb(2)-Si(3) bond lengths are 2.95 Å. There are two shorter (2.97 Å) and one longer (3.11 Å) Tb(2)-Si(2) bond length. In the third Tb site, Tb(3) is bonded in a 12-coordinate geometry to three equivalent Pd(2), three equivalent Pd(3), three equivalent Si(1), and three equivalent Si(3) atoms. There are two shorter (2.95 Å) and one longer (3.06 Å) Tb(3)-Pd(2) bond length. There is one shorter (2.91 Å) and two longer (3.11 Å) Tb(3)-Pd(3) bond lengths. There are two shorter (3.03 Å) and one longer (3.19 Å) Tb(3)-Si(1) bond length. There is one shorter (3.16 Å) and two longer (3.21 Å) Tb(3)-Si(3) bond lengths. There are three inequivalent Pd sites. In the first Pd site, Pd(3) is bonded in a 10-coordinate geometry to one Tb(2), two equivalent Tb(1), three equivalent Tb(3), one Pd(1), one Si(1), and two equivalent Si(3) atoms. The Pd(3)-Pd(1) bond length is 3.01 Å. The Pd(3)-Si(1) bond length is 2.49 Å. Both Pd(3)-Si(3) bond lengths are 2.51 Å. In the second Pd site, Pd(1) is bonded in a 10-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), one Pd(3), and three equivalent Si(2) atoms. There are two shorter (2.51 Å) and one longer (2.57 Å) Pd(1)-Si(2) bond length. In the third Pd site, Pd(2) is bonded in a 10-coordinate geometry to one Tb(1), two equivalent Tb(2), three equivalent Tb(3), one Si(3), and three equivalent Si(1) atoms. The Pd(2)-Si(3) bond length is 2.61 Å. There are two shorter (2.53 Å) and one longer (2.84 Å) Pd(2)-Si(1) bond length. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 10-coordinate geometry to one Tb(2), two equivalent Tb(1), three equivalent Tb(3), one Pd(3), and three equivalent Pd(2) atoms. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to three equivalent Tb(1), three equivalent Tb(2), three equivalent Pd(1), and one Si(3) atom. The Si(2)-Si(3) bond length is 2.60 Å. In the third Si site, Si(3) is bonded in a 10-coordinate geometry to one Tb(1), two equivalent Tb(2), three equivalent Tb(3), one Pd(2), two equivalent Pd(3), and one Si(2) atom.