LuNi5Sn crystallizes in the orthorhombic Pnma space group. Lu(1) is bonded in a 19-coordinate geometry to three equivalent Ni(1), three equivalent Ni(2), three equivalent Ni(3), six equivalent Ni(4), and four equivalent Sn(1) atoms. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to three equivalent Lu(1), one Ni(2), four equivalent Ni(4), and one Sn(1) atom. In the second Ni site, Ni(2) is bonded to three equivalent Lu(1), one Ni(1), two equivalent Ni(3), four equivalent Ni(4), and two equivalent Sn(1) atoms to form a mixture of distorted edge, face, and corner-sharing NiLu3Ni7Sn2 cuboctahedra. In the third Ni site, Ni(3) is bonded in a 10-coordinate geometry to three equivalent Lu(1), two equivalent Ni(2), two equivalent Ni(4), and three equivalent Sn(1) atoms. In the fourth Ni site, Ni(4) is bonded to three equivalent Lu(1), one Ni(3), two equivalent Ni(1), two equivalent Ni(2), two equivalent Ni(4), and two equivalent Sn(1) atoms to form a mixture of edge, face, and corner-sharing NiLu3Ni7Sn2 cuboctahedra. Sn(1) is bonded in a 14-coordinate geometry to four equivalent Lu(1), one Ni(1), two equivalent Ni(2), three equivalent Ni(3), and four equivalent Ni(4) atoms.
LuNi5Sn crystallizes in the orthorhombic Pnma space group. Lu(1) is bonded in a 19-coordinate geometry to three equivalent Ni(1), three equivalent Ni(2), three equivalent Ni(3), six equivalent Ni(4), and four equivalent Sn(1) atoms. There is one shorter (2.73 Å) and two longer (2.74 Å) Lu(1)-Ni(1) bond lengths. There are two shorter (3.05 Å) and one longer (3.26 Å) Lu(1)-Ni(2) bond length. There is one shorter (2.88 Å) and two longer (2.92 Å) Lu(1)-Ni(3) bond lengths. There are a spread of Lu(1)-Ni(4) bond distances ranging from 3.04-3.16 Å. There are a spread of Lu(1)-Sn(1) bond distances ranging from 3.15-3.26 Å. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to three equivalent Lu(1), one Ni(2), four equivalent Ni(4), and one Sn(1) atom. The Ni(1)-Ni(2) bond length is 2.41 Å. There are two shorter (2.42 Å) and two longer (2.44 Å) Ni(1)-Ni(4) bond lengths. The Ni(1)-Sn(1) bond length is 2.69 Å. In the second Ni site, Ni(2) is bonded to three equivalent Lu(1), one Ni(1), two equivalent Ni(3), four equivalent Ni(4), and two equivalent Sn(1) atoms to form a mixture of distorted edge, face, and corner-sharing NiLu3Ni7Sn2 cuboctahedra. There is one shorter (2.46 Å) and one longer (2.54 Å) Ni(2)-Ni(3) bond length. There are two shorter (2.38 Å) and two longer (2.40 Å) Ni(2)-Ni(4) bond lengths. Both Ni(2)-Sn(1) bond lengths are 2.70 Å. In the third Ni site, Ni(3) is bonded in a 10-coordinate geometry to three equivalent Lu(1), two equivalent Ni(2), two equivalent Ni(4), and three equivalent Sn(1) atoms. Both Ni(3)-Ni(4) bond lengths are 2.45 Å. There is one shorter (2.51 Å) and two longer (2.84 Å) Ni(3)-Sn(1) bond lengths. In the fourth Ni site, Ni(4) is bonded to three equivalent Lu(1), one Ni(3), two equivalent Ni(1), two equivalent Ni(2), two equivalent Ni(4), and two equivalent Sn(1) atoms to form a mixture of edge, face, and corner-sharing NiLu3Ni7Sn2 cuboctahedra. There is one shorter (2.38 Å) and one longer (2.40 Å) Ni(4)-Ni(4) bond length. There is one shorter (2.65 Å) and one longer (2.66 Å) Ni(4)-Sn(1) bond length. Sn(1) is bonded in a 14-coordinate geometry to four equivalent Lu(1), one Ni(1), two equivalent Ni(2), three equivalent Ni(3), and four equivalent Ni(4) atoms.