YbNi5 crystallizes in the hexagonal P6/mmm space group. Yb(1) is bonded in a distorted hexagonal planar geometry to six equivalent Ni(1) and twelve equivalent Ni(2) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 12-coordinate geometry to three equivalent Yb(1), three equivalent Ni(1), and six equivalent Ni(2) atoms. In the second Ni site, Ni(2) is bonded to four equivalent Yb(1), four equivalent Ni(1), and four equivalent Ni(2) atoms to form a mixture of corner, edge, and face-sharing NiYb4Ni8 cuboctahedra.
YbNi5 crystallizes in the hexagonal P6/mmm space group. Yb(1) is bonded in a distorted hexagonal planar geometry to six equivalent Ni(1) and twelve equivalent Ni(2) atoms. All Yb(1)-Ni(1) bond lengths are 2.75 Å. All Yb(1)-Ni(2) bond lengths are 3.08 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 12-coordinate geometry to three equivalent Yb(1), three equivalent Ni(1), and six equivalent Ni(2) atoms. All Ni(1)-Ni(1) bond lengths are 2.75 Å. All Ni(1)-Ni(2) bond lengths are 2.39 Å. In the second Ni site, Ni(2) is bonded to four equivalent Yb(1), four equivalent Ni(1), and four equivalent Ni(2) atoms to form a mixture of corner, edge, and face-sharing NiYb4Ni8 cuboctahedra. All Ni(2)-Ni(2) bond lengths are 2.38 Å.