Cr4Ni crystallizes in the orthorhombic Fmmm space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 2-coordinate geometry to two equivalent Cr(2) and two equivalent Ni(1) atoms. In the second Cr site, Cr(2) is bonded in a distorted body-centered cubic geometry to two equivalent Cr(1) and six equivalent Cr(2) atoms. Ni(1) is bonded in a 4-coordinate geometry to four equivalent Cr(1) atoms.
Cr4Ni crystallizes in the orthorhombic Fmmm space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 2-coordinate geometry to two equivalent Cr(2) and two equivalent Ni(1) atoms. Both Cr(1)-Cr(2) bond lengths are 2.48 Å. Both Cr(1)-Ni(1) bond lengths are 2.46 Å. In the second Cr site, Cr(2) is bonded in a distorted body-centered cubic geometry to two equivalent Cr(1) and six equivalent Cr(2) atoms. There are four shorter (2.44 Å) and two longer (2.50 Å) Cr(2)-Cr(2) bond lengths. Ni(1) is bonded in a 4-coordinate geometry to four equivalent Cr(1) atoms.