CePdSi crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 13-coordinate geometry to one Ce(1), two equivalent Pd(2), five equivalent Pd(1), one Si(1), and four equivalent Si(2) atoms. In the second Ce site, Ce(2) 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 edge and face-sharing CeSi7Pd5 cuboctahedra. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 5-coordinate geometry to one Ce(2), five equivalent Ce(1), and three equivalent Si(2) atoms. In the second Pd site, Pd(2) is bonded in a 9-coordinate geometry to two equivalent Ce(1), four equivalent Ce(2), 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 Ce(1), five equivalent Ce(2), two equivalent Pd(2), and one Si(1) atom. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to two equivalent Ce(2), four equivalent Ce(1), one Pd(2), and three equivalent Pd(1) atoms.
CePdSi crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 13-coordinate geometry to one Ce(1), two equivalent Pd(2), five equivalent Pd(1), one Si(1), and four equivalent Si(2) atoms. The Ce(1)-Ce(1) bond length is 3.46 Å. There is one shorter (2.98 Å) and one longer (3.11 Å) Ce(1)-Pd(2) bond length. There are a spread of Ce(1)-Pd(1) bond distances ranging from 2.97-3.45 Å. The Ce(1)-Si(1) bond length is 3.08 Å. There are a spread of Ce(1)-Si(2) bond distances ranging from 3.15-3.42 Å. In the second Ce site, Ce(2) 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 edge and face-sharing CeSi7Pd5 cuboctahedra. The Ce(2)-Pd(1) bond length is 3.44 Å. There are a spread of Ce(2)-Pd(2) bond distances ranging from 3.05-3.31 Å. There is one shorter (3.25 Å) and one longer (3.33 Å) Ce(2)-Si(2) bond length. There are a spread of Ce(2)-Si(1) bond distances ranging from 3.13-3.29 Å. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 5-coordinate geometry to one Ce(2), five equivalent Ce(1), and three equivalent Si(2) atoms. There are a spread of Pd(1)-Si(2) bond distances ranging from 2.43-2.57 Å. In the second Pd site, Pd(2) is bonded in a 9-coordinate geometry to two equivalent Ce(1), four equivalent Ce(2), one Si(2), and two equivalent Si(1) atoms. The Pd(2)-Si(2) bond length is 2.55 Å. There is one shorter (2.46 Å) and one longer (2.52 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 Ce(1), five equivalent Ce(2), two equivalent Pd(2), and one Si(1) atom. The Si(1)-Si(1) bond length is 2.36 Å. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to two equivalent Ce(2), four equivalent Ce(1), one Pd(2), and three equivalent Pd(1) atoms.