SmPdSi crystallizes in the orthorhombic Pnma space group. There are three inequivalent Sm sites. In the first Sm site, Sm(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 Sm site, Sm(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 Sm site, Sm(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 Sm(2), two equivalent Sm(1), three equivalent Sm(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 Sm(1), three equivalent Sm(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 Sm(1), two equivalent Sm(2), three equivalent Sm(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 Sm(2), two equivalent Sm(1), three equivalent Sm(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 Sm(1), three equivalent Sm(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 Sm(1), two equivalent Sm(2), three equivalent Sm(3), one Pd(2), two equivalent Pd(3), and one Si(2) atom.
SmPdSi crystallizes in the orthorhombic Pnma space group. There are three inequivalent Sm sites. In the first Sm site, Sm(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 Sm(1)-Pd(2) bond length is 3.11 Å. Both Sm(1)-Pd(3) bond lengths are 3.14 Å. There is one shorter (2.98 Å) and two longer (3.09 Å) Sm(1)-Pd(1) bond lengths. The Sm(1)-Si(3) bond length is 3.15 Å. Both Sm(1)-Si(1) bond lengths are 3.13 Å. There is one shorter (3.13 Å) and two longer (3.27 Å) Sm(1)-Si(2) bond lengths. In the second Sm site, Sm(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 Sm(2)-Pd(3) bond length is 3.21 Å. Both Sm(2)-Pd(2) bond lengths are 3.24 Å. There are two shorter (3.16 Å) and one longer (3.22 Å) Sm(2)-Pd(1) bond length. The Sm(2)-Si(1) bond length is 3.02 Å. Both Sm(2)-Si(3) bond lengths are 2.99 Å. There are two shorter (3.00 Å) and one longer (3.16 Å) Sm(2)-Si(2) bond length. In the third Sm site, Sm(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 (2.99 Å) and one longer (3.11 Å) Sm(3)-Pd(2) bond length. There is one shorter (2.95 Å) and two longer (3.16 Å) Sm(3)-Pd(3) bond lengths. There are two shorter (3.07 Å) and one longer (3.22 Å) Sm(3)-Si(1) bond length. There is one shorter (3.22 Å) and two longer (3.27 Å) Sm(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 Sm(2), two equivalent Sm(1), three equivalent Sm(3), one Pd(1), one Si(1), and two equivalent Si(3) atoms. The Pd(3)-Pd(1) bond length is 3.07 Å. The Pd(3)-Si(1) bond length is 2.52 Å. Both Pd(3)-Si(3) bond lengths are 2.53 Å. In the second Pd site, Pd(1) is bonded in a 10-coordinate geometry to three equivalent Sm(1), three equivalent Sm(2), one Pd(3), and three equivalent Si(2) atoms. There are two shorter (2.53 Å) and one longer (2.60 Å) Pd(1)-Si(2) bond length. In the third Pd site, Pd(2) is bonded in a 10-coordinate geometry to one Sm(1), two equivalent Sm(2), three equivalent Sm(3), one Si(3), and three equivalent Si(1) atoms. The Pd(2)-Si(3) bond length is 2.65 Å. There are two shorter (2.55 Å) and one longer (2.89 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 Sm(2), two equivalent Sm(1), three equivalent Sm(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 Sm(1), three equivalent Sm(2), three equivalent Pd(1), and one Si(3) atom. The Si(2)-Si(3) bond length is 2.62 Å. In the third Si site, Si(3) is bonded in a 10-coordinate geometry to one Sm(1), two equivalent Sm(2), three equivalent Sm(3), one Pd(2), two equivalent Pd(3), and one Si(2) atom.