Al3Ni is Cementite structured and crystallizes in the orthorhombic Pnma space group. Ni(1) is bonded in a 9-coordinate geometry to three equivalent Al(1) and six equivalent Al(2) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a 3-coordinate geometry to three equivalent Ni(1) atoms. In the second Al site, Al(2) is bonded in a 3-coordinate geometry to three equivalent Ni(1) atoms.
Al3Ni is Cementite structured and crystallizes in the orthorhombic Pnma space group. Ni(1) is bonded in a 9-coordinate geometry to three equivalent Al(1) and six equivalent Al(2) atoms. There are a spread of Ni(1)-Al(1) bond distances ranging from 2.43-2.68 Å. There are four shorter (2.43 Å) and two longer (2.46 Å) Ni(1)-Al(2) bond lengths. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a 3-coordinate geometry to three equivalent Ni(1) atoms. In the second Al site, Al(2) is bonded in a 3-coordinate geometry to three equivalent Ni(1) atoms.