SmZn3 crystallizes in the orthorhombic Pnma space group. Sm(1) is bonded in a 14-coordinate geometry to four equivalent Zn(3), five equivalent Zn(1), and five equivalent Zn(2) atoms. There are three inequivalent Zn sites. In the first Zn site, Zn(2) is bonded in a 10-coordinate geometry to five equivalent Sm(1), two equivalent Zn(1), and three equivalent Zn(3) atoms. In the second Zn site, Zn(1) is bonded in a 12-coordinate geometry to five equivalent Sm(1), two equivalent Zn(1), two equivalent Zn(2), and three equivalent Zn(3) atoms. In the third Zn site, Zn(3) is bonded in a 10-coordinate geometry to four equivalent Sm(1), three equivalent Zn(1), and three equivalent Zn(2) atoms.
SmZn3 crystallizes in the orthorhombic Pnma space group. Sm(1) is bonded in a 14-coordinate geometry to four equivalent Zn(3), five equivalent Zn(1), and five equivalent Zn(2) atoms. There are three shorter (3.02 Å) and one longer (3.16 Å) Sm(1)-Zn(3) bond length. There are a spread of Sm(1)-Zn(1) bond distances ranging from 3.11-3.48 Å. There are a spread of Sm(1)-Zn(2) bond distances ranging from 3.02-3.24 Å. There are three inequivalent Zn sites. In the first Zn site, Zn(2) is bonded in a 10-coordinate geometry to five equivalent Sm(1), two equivalent Zn(1), and three equivalent Zn(3) atoms. There is one shorter (2.56 Å) and one longer (2.62 Å) Zn(2)-Zn(1) bond length. There are two shorter (2.60 Å) and one longer (2.85 Å) Zn(2)-Zn(3) bond length. In the second Zn site, Zn(1) is bonded in a 12-coordinate geometry to five equivalent Sm(1), two equivalent Zn(1), two equivalent Zn(2), and three equivalent Zn(3) atoms. Both Zn(1)-Zn(1) bond lengths are 3.11 Å. There is one shorter (2.59 Å) and two longer (2.82 Å) Zn(1)-Zn(3) bond lengths. In the third Zn site, Zn(3) is bonded in a 10-coordinate geometry to four equivalent Sm(1), three equivalent Zn(1), and three equivalent Zn(2) atoms.