Pr3Cr is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to four equivalent Pr(2) and four equivalent Cr(1) atoms to form a mixture of distorted face, corner, and edge-sharing PrPr4Cr4 tetrahedra. In the second Pr site, Pr(2) is bonded in a 14-coordinate geometry to eight equivalent Pr(1) and six equivalent Cr(1) atoms. Cr(1) is bonded in a distorted body-centered cubic geometry to six equivalent Pr(2) and eight equivalent Pr(1) atoms.
Pr3Cr is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to four equivalent Pr(2) and four equivalent Cr(1) atoms to form a mixture of distorted face, corner, and edge-sharing PrPr4Cr4 tetrahedra. All Pr(1)-Pr(2) bond lengths are 3.40 Å. All Pr(1)-Cr(1) bond lengths are 3.40 Å. In the second Pr site, Pr(2) is bonded in a 14-coordinate geometry to eight equivalent Pr(1) and six equivalent Cr(1) atoms. All Pr(2)-Cr(1) bond lengths are 3.93 Å. Cr(1) is bonded in a distorted body-centered cubic geometry to six equivalent Pr(2) and eight equivalent Pr(1) atoms.