CeLa(PdSi)4 crystallizes in the tetragonal P4/mmm space group. Ce(1) is bonded in a 16-coordinate geometry to eight equivalent Pd(1) and eight equivalent Si(1) atoms. La(1) is bonded in a 16-coordinate geometry to eight equivalent Pd(1) and eight equivalent Si(2) atoms. Pd(1) is bonded in a 4-coordinate geometry to two equivalent Ce(1), two equivalent La(1), two equivalent Si(1), and two equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to four equivalent Ce(1), four equivalent Pd(1), and one Si(1) atom. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to four equivalent La(1), four equivalent Pd(1), and one Si(2) atom.
CeLa(PdSi)4 crystallizes in the tetragonal P4/mmm space group. Ce(1) is bonded in a 16-coordinate geometry to eight equivalent Pd(1) and eight equivalent Si(1) atoms. All Ce(1)-Pd(1) bond lengths are 3.25 Å. All Ce(1)-Si(1) bond lengths are 3.22 Å. La(1) is bonded in a 16-coordinate geometry to eight equivalent Pd(1) and eight equivalent Si(2) atoms. All La(1)-Pd(1) bond lengths are 3.29 Å. All La(1)-Si(2) bond lengths are 3.23 Å. Pd(1) is bonded in a 4-coordinate geometry to two equivalent Ce(1), two equivalent La(1), two equivalent Si(1), and two equivalent Si(2) atoms. Both Pd(1)-Si(1) bond lengths are 2.49 Å. Both Pd(1)-Si(2) bond lengths are 2.50 Å. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to four equivalent Ce(1), four equivalent Pd(1), and one Si(1) atom. The Si(1)-Si(1) bond length is 2.34 Å. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to four equivalent La(1), four equivalent Pd(1), and one Si(2) atom. The Si(2)-Si(2) bond length is 2.39 Å.