Th7Ni3 crystallizes in the hexagonal P6_3mc space group. There are three inequivalent Th sites. In the first Th site, Th(1) is bonded in a 3-coordinate geometry to three equivalent Ni(1) atoms. In the second Th site, Th(3) is bonded in a distorted water-like geometry to two equivalent Ni(1) atoms. In the third Th site, Th(2) is bonded in a 3-coordinate geometry to three equivalent Ni(1) atoms. Ni(1) is bonded in a 6-coordinate geometry to one Th(1), two equivalent Th(3), and three equivalent Th(2) atoms.
Th7Ni3 crystallizes in the hexagonal P6_3mc space group. There are three inequivalent Th sites. In the first Th site, Th(1) is bonded in a 3-coordinate geometry to three equivalent Ni(1) atoms. All Th(1)-Ni(1) bond lengths are 3.00 Å. In the second Th site, Th(3) is bonded in a distorted water-like geometry to two equivalent Ni(1) atoms. Both Th(3)-Ni(1) bond lengths are 2.85 Å. In the third Th site, Th(2) is bonded in a 3-coordinate geometry to three equivalent Ni(1) atoms. There are two shorter (2.82 Å) and one longer (2.88 Å) Th(2)-Ni(1) bond length. Ni(1) is bonded in a 6-coordinate geometry to one Th(1), two equivalent Th(3), and three equivalent Th(2) atoms.