AlPr2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 5-coordinate geometry to five equivalent Al(1) atoms. In the second Pr site, Pr(2) is bonded in a 3-coordinate geometry to five equivalent Al(1) atoms. Al(1) is bonded in a 10-coordinate geometry to five equivalent Pr(1) and five equivalent Pr(2) atoms.
AlPr2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 5-coordinate geometry to five equivalent Al(1) atoms. There are a spread of Pr(1)-Al(1) bond distances ranging from 3.18-3.53 Å. In the second Pr site, Pr(2) is bonded in a 3-coordinate geometry to five equivalent Al(1) atoms. There are a spread of Pr(2)-Al(1) bond distances ranging from 3.25-3.75 Å. Al(1) is bonded in a 10-coordinate geometry to five equivalent Pr(1) and five equivalent Pr(2) atoms.