Cr3As is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to four equivalent Cr(2) and four equivalent As(1) atoms to form a mixture of distorted face, corner, and edge-sharing CrCr4As4 tetrahedra. In the second Cr site, Cr(2) is bonded in a 14-coordinate geometry to eight equivalent Cr(1) and six equivalent As(1) atoms. As(1) is bonded in a distorted body-centered cubic geometry to six equivalent Cr(2) and eight equivalent Cr(1) atoms.
Cr3As is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to four equivalent Cr(2) and four equivalent As(1) atoms to form a mixture of distorted face, corner, and edge-sharing CrCr4As4 tetrahedra. All Cr(1)-Cr(2) bond lengths are 2.50 Å. All Cr(1)-As(1) bond lengths are 2.50 Å. In the second Cr site, Cr(2) is bonded in a 14-coordinate geometry to eight equivalent Cr(1) and six equivalent As(1) atoms. All Cr(2)-As(1) bond lengths are 2.89 Å. As(1) is bonded in a distorted body-centered cubic geometry to six equivalent Cr(2) and eight equivalent Cr(1) atoms.