LaNi2Zn is Frank-Kasper $\mu$ Phase-derived structured and crystallizes in the hexagonal P6_3/mmc space group. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 20-coordinate geometry to two La(2,2); twelve equivalent Ni(1); three equivalent Zn(1); and three equivalent Zn(2) atoms. In the second La site, La(2) is bonded in a 12-coordinate geometry to one La(1), nine equivalent Ni(1), and three equivalent Zn(3) atoms. In the third La site, La(2) is bonded in a 12-coordinate geometry to one La(1), nine equivalent Ni(1), and three equivalent Zn(3) atoms. Ni(1) is bonded to two equivalent La(1); three La(2,2); four equivalent Ni(1); one Zn(1); one Zn(2); and one Zn(3) atom to form distorted NiLa5Zn3Ni4 cuboctahedra that share corners with two equivalent Zn(3)La6Ni6 cuboctahedra, corners with fifteen equivalent Ni(1)La5Zn3Ni4 cuboctahedra, edges with eight equivalent Ni(1)La5Zn3Ni4 cuboctahedra, faces with three equivalent Zn(3)La6Ni6 cuboctahedra, and faces with eleven equivalent Ni(1)La5Zn3Ni4 cuboctahedra. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 9-coordinate geometry to three equivalent La(1) and six equivalent Ni(1) atoms. In the second Zn site, Zn(2) is bonded in a 9-coordinate geometry to three equivalent La(1) and six equivalent Ni(1) atoms. In the third Zn site, Zn(3) is bonded to six La(2,2) and six equivalent Ni(1) atoms to form ZnLa6Ni6 cuboctahedra that share corners with twelve equivalent Ni(1)La5Zn3Ni4 cuboctahedra, edges with six equivalent Zn(3)La6Ni6 cuboctahedra, and faces with eighteen equivalent Ni(1)La5Zn3Ni4 cuboctahedra.
LaNi2Zn is Frank-Kasper $\mu$ Phase-derived structured and crystallizes in the hexagonal P6_3/mmc space group. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 20-coordinate geometry to two La(2,2); twelve equivalent Ni(1); three equivalent Zn(1); and three equivalent Zn(2) atoms. Both La(1)-La(2,2) bond lengths are 3.36 Å. All La(1)-Ni(1) bond lengths are 3.32 Å. All La(1)-Zn(1) bond lengths are 3.06 Å. All La(1)-Zn(2) bond lengths are 3.06 Å. In the second La site, La(2) is bonded in a 12-coordinate geometry to one La(1), nine equivalent Ni(1), and three equivalent Zn(3) atoms. There are six shorter (2.98 Å) and three longer (3.16 Å) La(2)-Ni(1) bond lengths. All La(2)-Zn(3) bond lengths are 3.14 Å. In the third La site, La(2) is bonded in a 12-coordinate geometry to one La(1), nine equivalent Ni(1), and three equivalent Zn(3) atoms. There are six shorter (2.98 Å) and three longer (3.16 Å) La(2)-Ni(1) bond lengths. All La(2)-Zn(3) bond lengths are 3.14 Å. Ni(1) is bonded to two equivalent La(1); three La(2,2); four equivalent Ni(1); one Zn(1); one Zn(2); and one Zn(3) atom to form distorted NiLa5Zn3Ni4 cuboctahedra that share corners with two equivalent Zn(3)La6Ni6 cuboctahedra, corners with fifteen equivalent Ni(1)La5Zn3Ni4 cuboctahedra, edges with eight equivalent Ni(1)La5Zn3Ni4 cuboctahedra, faces with three equivalent Zn(3)La6Ni6 cuboctahedra, and faces with eleven equivalent Ni(1)La5Zn3Ni4 cuboctahedra. There are two shorter (2.64 Å) and two longer (2.67 Å) Ni(1)-Ni(1) bond lengths. The Ni(1)-Zn(1) bond length is 2.51 Å. The Ni(1)-Zn(2) bond length is 2.52 Å. The Ni(1)-Zn(3) bond length is 2.57 Å. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 9-coordinate geometry to three equivalent La(1) and six equivalent Ni(1) atoms. In the second Zn site, Zn(2) is bonded in a 9-coordinate geometry to three equivalent La(1) and six equivalent Ni(1) atoms. In the third Zn site, Zn(3) is bonded to six La(2,2) and six equivalent Ni(1) atoms to form ZnLa6Ni6 cuboctahedra that share corners with twelve equivalent Ni(1)La5Zn3Ni4 cuboctahedra, edges with six equivalent Zn(3)La6Ni6 cuboctahedra, and faces with eighteen equivalent Ni(1)La5Zn3Ni4 cuboctahedra.