LaPd2Al2 crystallizes in the tetragonal P4/nmm space group. La(1) is bonded in a 16-coordinate geometry to four equivalent Pd(1), four equivalent Pd(2), four equivalent Al(1), and four equivalent Al(2) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 4-coordinate geometry to four equivalent La(1) and four equivalent Al(2) atoms. In the second Pd site, Pd(2) is bonded in a 5-coordinate geometry to four equivalent La(1), one Al(2), and four equivalent Al(1) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to four equivalent La(1) and four equivalent Pd(2) atoms to form a mixture of distorted face and edge-sharing AlLa4Pd4 tetrahedra. In the second Al site, Al(2) is bonded in a 5-coordinate geometry to four equivalent La(1), one Pd(2), and four equivalent Pd(1) atoms.
LaPd2Al2 crystallizes in the tetragonal P4/nmm space group. La(1) is bonded in a 16-coordinate geometry to four equivalent Pd(1), four equivalent Pd(2), four equivalent Al(1), and four equivalent Al(2) atoms. All La(1)-Pd(1) bond lengths are 3.32 Å. All La(1)-Pd(2) bond lengths are 3.38 Å. All La(1)-Al(1) bond lengths are 3.37 Å. All La(1)-Al(2) bond lengths are 3.38 Å. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 4-coordinate geometry to four equivalent La(1) and four equivalent Al(2) atoms. All Pd(1)-Al(2) bond lengths are 2.53 Å. In the second Pd site, Pd(2) is bonded in a 5-coordinate geometry to four equivalent La(1), one Al(2), and four equivalent Al(1) atoms. The Pd(2)-Al(2) bond length is 2.50 Å. All Pd(2)-Al(1) bond lengths are 2.56 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to four equivalent La(1) and four equivalent Pd(2) atoms to form a mixture of distorted face and edge-sharing AlLa4Pd4 tetrahedra. In the second Al site, Al(2) is bonded in a 5-coordinate geometry to four equivalent La(1), one Pd(2), and four equivalent Pd(1) atoms.