LuNi3Ga2 crystallizes in the hexagonal P-62m space group. There are two inequivalent Lu sites. In the first Lu site, Lu(1) is bonded in a 18-coordinate geometry to three equivalent Ni(2), six equivalent Ni(1), three equivalent Ga(2), and six equivalent Ga(1) atoms. In the second Lu site, Lu(2) is bonded in a 18-coordinate geometry to six equivalent Ni(1), six equivalent Ni(2), and six equivalent Ga(2) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 10-coordinate geometry to one Lu(2), two equivalent Lu(1), one Ni(1), two equivalent Ni(2), two equivalent Ga(1), and two equivalent Ga(2) atoms. In the second Ni site, Ni(2) is bonded to two equivalent Lu(1), two equivalent Lu(2), four equivalent Ni(1), two equivalent Ga(1), and two equivalent Ga(2) atoms to form a mixture of distorted face and corner-sharing NiLu4Ga4Ni4 cuboctahedra. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 6-coordinate geometry to four equivalent Lu(1), two equivalent Ni(2), and four equivalent Ni(1) atoms. In the second Ga site, Ga(2) is bonded in a 6-coordinate geometry to two equivalent Lu(1), two equivalent Lu(2), two equivalent Ni(2), and four equivalent Ni(1) atoms.
LuNi3Ga2 crystallizes in the hexagonal P-62m space group. There are two inequivalent Lu sites. In the first Lu site, Lu(1) is bonded in a 18-coordinate geometry to three equivalent Ni(2), six equivalent Ni(1), three equivalent Ga(2), and six equivalent Ga(1) atoms. All Lu(1)-Ni(2) bond lengths are 3.06 Å. All Lu(1)-Ni(1) bond lengths are 2.97 Å. All Lu(1)-Ga(2) bond lengths are 3.18 Å. All Lu(1)-Ga(1) bond lengths are 3.20 Å. In the second Lu site, Lu(2) is bonded in a 18-coordinate geometry to six equivalent Ni(1), six equivalent Ni(2), and six equivalent Ga(2) atoms. All Lu(2)-Ni(1) bond lengths are 2.79 Å. All Lu(2)-Ni(2) bond lengths are 3.23 Å. All Lu(2)-Ga(2) bond lengths are 3.07 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 10-coordinate geometry to one Lu(2), two equivalent Lu(1), one Ni(1), two equivalent Ni(2), two equivalent Ga(1), and two equivalent Ga(2) atoms. The Ni(1)-Ni(1) bond length is 2.60 Å. Both Ni(1)-Ni(2) bond lengths are 2.50 Å. There is one shorter (2.33 Å) and one longer (2.39 Å) Ni(1)-Ga(1) bond length. Both Ni(1)-Ga(2) bond lengths are 2.39 Å. In the second Ni site, Ni(2) is bonded to two equivalent Lu(1), two equivalent Lu(2), four equivalent Ni(1), two equivalent Ga(1), and two equivalent Ga(2) atoms to form a mixture of distorted face and corner-sharing NiLu4Ga4Ni4 cuboctahedra. Both Ni(2)-Ga(1) bond lengths are 2.57 Å. Both Ni(2)-Ga(2) bond lengths are 2.43 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 6-coordinate geometry to four equivalent Lu(1), two equivalent Ni(2), and four equivalent Ni(1) atoms. In the second Ga site, Ga(2) is bonded in a 6-coordinate geometry to two equivalent Lu(1), two equivalent Lu(2), two equivalent Ni(2), and four equivalent Ni(1) atoms.