Pr2Au 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 3-coordinate geometry to three equivalent Au(1) atoms. In the second Pr site, Pr(2) is bonded to four equivalent Au(1) atoms to form a mixture of distorted edge and corner-sharing PrAu4 tetrahedra. Au(1) is bonded in a 7-coordinate geometry to three equivalent Pr(1) and four equivalent Pr(2) atoms.
Pr2Au 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 3-coordinate geometry to three equivalent Au(1) atoms. There is one shorter (3.05 Å) and two longer (3.22 Å) Pr(1)-Au(1) bond lengths. In the second Pr site, Pr(2) is bonded to four equivalent Au(1) atoms to form a mixture of distorted edge and corner-sharing PrAu4 tetrahedra. There are a spread of Pr(2)-Au(1) bond distances ranging from 3.00-3.19 Å. Au(1) is bonded in a 7-coordinate geometry to three equivalent Pr(1) and four equivalent Pr(2) atoms.