PrPS crystallizes in the orthorhombic Pnma space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 9-coordinate geometry to four equivalent P(1), two equivalent S(2), and three equivalent S(1) atoms. In the second Pr site, Pr(2) is bonded in a 9-coordinate geometry to four equivalent P(1), two equivalent S(1), and three equivalent S(2) atoms. P(1) is bonded in a 6-coordinate geometry to two equivalent Pr(1), two equivalent Pr(2), and two equivalent P(1) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded to two equivalent Pr(2) and three equivalent Pr(1) atoms to form a mixture of distorted edge and corner-sharing SPr5 trigonal bipyramids. In the second S site, S(2) is bonded to two equivalent Pr(1) and three equivalent Pr(2) atoms to form a mixture of distorted edge and corner-sharing SPr5 trigonal bipyramids.
PrPS crystallizes in the orthorhombic Pnma space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 9-coordinate geometry to four equivalent P(1), two equivalent S(2), and three equivalent S(1) atoms. There are two shorter (3.24 Å) and two longer (3.29 Å) Pr(1)-P(1) bond lengths. Both Pr(1)-S(2) bond lengths are 2.89 Å. There are a spread of Pr(1)-S(1) bond distances ranging from 2.95-3.00 Å. In the second Pr site, Pr(2) is bonded in a 9-coordinate geometry to four equivalent P(1), two equivalent S(1), and three equivalent S(2) atoms. There are two shorter (3.00 Å) and two longer (3.25 Å) Pr(2)-P(1) bond lengths. Both Pr(2)-S(1) bond lengths are 2.87 Å. There are a spread of Pr(2)-S(2) bond distances ranging from 2.85-2.93 Å. P(1) is bonded in a 6-coordinate geometry to two equivalent Pr(1), two equivalent Pr(2), and two equivalent P(1) atoms. There is one shorter (2.23 Å) and one longer (2.25 Å) P(1)-P(1) bond length. There are two inequivalent S sites. In the first S site, S(1) is bonded to two equivalent Pr(2) and three equivalent Pr(1) atoms to form a mixture of distorted edge and corner-sharing SPr5 trigonal bipyramids. In the second S site, S(2) is bonded to two equivalent Pr(1) and three equivalent Pr(2) atoms to form a mixture of distorted edge and corner-sharing SPr5 trigonal bipyramids.