PrPdSi crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to one Pd(1), four equivalent Pd(2), two equivalent Si(2), and five equivalent Si(1) atoms to form a mixture of distorted face and edge-sharing PrSi7Pd5 cuboctahedra. In the second Pr site, Pr(2) is bonded in a 13-coordinate geometry to one Pr(2), two equivalent Pd(2), five equivalent Pd(1), one Si(1), and four equivalent Si(2) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 5-coordinate geometry to one Pr(1), five equivalent Pr(2), and three equivalent Si(2) atoms. In the second Pd site, Pd(2) is bonded in a 9-coordinate geometry to two equivalent Pr(2), four equivalent Pr(1), one Si(2), and two equivalent Si(1) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to one Pr(2), five equivalent Pr(1), two equivalent Pd(2), and one Si(1) atom. In the second Si site, Si(2) is bonded in a 4-coordinate geometry to two equivalent Pr(1), four equivalent Pr(2), one Pd(2), and three equivalent Pd(1) atoms.
PrPdSi crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to one Pd(1), four equivalent Pd(2), two equivalent Si(2), and five equivalent Si(1) atoms to form a mixture of distorted face and edge-sharing PrSi7Pd5 cuboctahedra. The Pr(1)-Pd(1) bond length is 3.47 Å. There are a spread of Pr(1)-Pd(2) bond distances ranging from 3.08-3.33 Å. There is one shorter (3.28 Å) and one longer (3.37 Å) Pr(1)-Si(2) bond length. There are a spread of Pr(1)-Si(1) bond distances ranging from 3.16-3.28 Å. In the second Pr site, Pr(2) is bonded in a 13-coordinate geometry to one Pr(2), two equivalent Pd(2), five equivalent Pd(1), one Si(1), and four equivalent Si(2) atoms. The Pr(2)-Pr(2) bond length is 3.51 Å. There is one shorter (3.01 Å) and one longer (3.09 Å) Pr(2)-Pd(2) bond length. There are a spread of Pr(2)-Pd(1) bond distances ranging from 3.01-3.47 Å. The Pr(2)-Si(1) bond length is 3.06 Å. There are a spread of Pr(2)-Si(2) bond distances ranging from 3.14-3.47 Å. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 5-coordinate geometry to one Pr(1), five equivalent Pr(2), and three equivalent Si(2) atoms. There are a spread of Pd(1)-Si(2) bond distances ranging from 2.44-2.56 Å. In the second Pd site, Pd(2) is bonded in a 9-coordinate geometry to two equivalent Pr(2), four equivalent Pr(1), one Si(2), and two equivalent Si(1) atoms. The Pd(2)-Si(2) bond length is 2.58 Å. There is one shorter (2.46 Å) and one longer (2.51 Å) Pd(2)-Si(1) bond length. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to one Pr(2), five equivalent Pr(1), two equivalent Pd(2), and one Si(1) atom. The Si(1)-Si(1) bond length is 2.37 Å. In the second Si site, Si(2) is bonded in a 4-coordinate geometry to two equivalent Pr(1), four equivalent Pr(2), one Pd(2), and three equivalent Pd(1) atoms.