Yb5Ni4Sn10 crystallizes in the tetragonal P4/mbm space group. There are three inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 16-coordinate geometry to four equivalent Ni(1), four equivalent Sn(1), and eight equivalent Sn(2) atoms. In the second Yb site, Yb(2) is bonded to four equivalent Ni(1), two equivalent Sn(2), two equivalent Sn(3), and four equivalent Sn(1) atoms to form distorted face-sharing YbNi4Sn8 cuboctahedra. In the third Yb site, Yb(3) is bonded in a 14-coordinate geometry to four equivalent Ni(1), two equivalent Sn(2), four equivalent Sn(1), and four equivalent Sn(3) atoms. Ni(1) is bonded in a 10-coordinate geometry to one Yb(1), two equivalent Yb(2), two equivalent Yb(3), one Sn(3), two equivalent Sn(1), and two equivalent Sn(2) atoms. There are three inequivalent Sn sites. In the first Sn site, Sn(3) is bonded in a 9-coordinate geometry to two equivalent Yb(2), four equivalent Yb(3), two equivalent Ni(1), and one Sn(3) atom. In the second Sn site, Sn(1) is bonded in a 10-coordinate geometry to one Yb(1), two equivalent Yb(2), two equivalent Yb(3), two equivalent Ni(1), one Sn(1), and two equivalent Sn(2) atoms. In the third Sn site, Sn(2) is bonded in a 5-coordinate geometry to one Yb(2), one Yb(3), two equivalent Yb(1), two equivalent Ni(1), and two equivalent Sn(1) atoms.
Yb5Ni4Sn10 crystallizes in the tetragonal P4/mbm space group. There are three inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 16-coordinate geometry to four equivalent Ni(1), four equivalent Sn(1), and eight equivalent Sn(2) atoms. All Yb(1)-Ni(1) bond lengths are 3.46 Å. All Yb(1)-Sn(1) bond lengths are 3.46 Å. All Yb(1)-Sn(2) bond lengths are 3.21 Å. In the second Yb site, Yb(2) is bonded to four equivalent Ni(1), two equivalent Sn(2), two equivalent Sn(3), and four equivalent Sn(1) atoms to form distorted face-sharing YbNi4Sn8 cuboctahedra. All Yb(2)-Ni(1) bond lengths are 3.21 Å. Both Yb(2)-Sn(2) bond lengths are 3.22 Å. Both Yb(2)-Sn(3) bond lengths are 3.10 Å. All Yb(2)-Sn(1) bond lengths are 3.29 Å. In the third Yb site, Yb(3) is bonded in a 14-coordinate geometry to four equivalent Ni(1), two equivalent Sn(2), four equivalent Sn(1), and four equivalent Sn(3) atoms. All Yb(3)-Ni(1) bond lengths are 3.61 Å. Both Yb(3)-Sn(2) bond lengths are 3.58 Å. All Yb(3)-Sn(1) bond lengths are 3.56 Å. All Yb(3)-Sn(3) bond lengths are 3.39 Å. Ni(1) is bonded in a 10-coordinate geometry to one Yb(1), two equivalent Yb(2), two equivalent Yb(3), one Sn(3), two equivalent Sn(1), and two equivalent Sn(2) atoms. The Ni(1)-Sn(3) bond length is 2.60 Å. There is one shorter (2.62 Å) and one longer (2.67 Å) Ni(1)-Sn(1) bond length. Both Ni(1)-Sn(2) bond lengths are 2.55 Å. There are three inequivalent Sn sites. In the first Sn site, Sn(3) is bonded in a 9-coordinate geometry to two equivalent Yb(2), four equivalent Yb(3), two equivalent Ni(1), and one Sn(3) atom. The Sn(3)-Sn(3) bond length is 2.80 Å. In the second Sn site, Sn(1) is bonded in a 10-coordinate geometry to one Yb(1), two equivalent Yb(2), two equivalent Yb(3), two equivalent Ni(1), one Sn(1), and two equivalent Sn(2) atoms. The Sn(1)-Sn(1) bond length is 3.00 Å. Both Sn(1)-Sn(2) bond lengths are 3.19 Å. In the third Sn site, Sn(2) is bonded in a 5-coordinate geometry to one Yb(2), one Yb(3), two equivalent Yb(1), two equivalent Ni(1), and two equivalent Sn(1) atoms.