Zr9Pd11 crystallizes in the tetragonal I4/m space group. There are three inequivalent Zr sites. In the first Zr site, Zr(1) is bonded in a 9-coordinate geometry to one Pd(3), two equivalent Pd(2), and six equivalent Pd(1) atoms. In the second Zr site, Zr(2) is bonded in a distorted body-centered cubic geometry to two equivalent Pd(2) and six equivalent Pd(1) atoms. In the third Zr site, Zr(3) is bonded in a 10-coordinate geometry to two equivalent Pd(3) and eight equivalent Pd(1) atoms. There are three inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 7-coordinate geometry to one Zr(3), three equivalent Zr(1), and three equivalent Zr(2) atoms. In the second Pd site, Pd(2) is bonded in a 8-coordinate geometry to four equivalent Zr(1) and four equivalent Zr(2) atoms. In the third Pd site, Pd(3) is bonded in a distorted square co-planar geometry to two equivalent Zr(3) and four equivalent Zr(1) atoms.
Zr9Pd11 crystallizes in the tetragonal I4/m space group. There are three inequivalent Zr sites. In the first Zr site, Zr(1) is bonded in a 9-coordinate geometry to one Pd(3), two equivalent Pd(2), and six equivalent Pd(1) atoms. The Zr(1)-Pd(3) bond length is 2.80 Å. Both Zr(1)-Pd(2) bond lengths are 3.18 Å. There are a spread of Zr(1)-Pd(1) bond distances ranging from 2.80-2.87 Å. In the second Zr site, Zr(2) is bonded in a distorted body-centered cubic geometry to two equivalent Pd(2) and six equivalent Pd(1) atoms. Both Zr(2)-Pd(2) bond lengths are 2.80 Å. There are a spread of Zr(2)-Pd(1) bond distances ranging from 2.74-2.84 Å. In the third Zr site, Zr(3) is bonded in a 10-coordinate geometry to two equivalent Pd(3) and eight equivalent Pd(1) atoms. Both Zr(3)-Pd(3) bond lengths are 3.41 Å. All Zr(3)-Pd(1) bond lengths are 3.00 Å. There are three inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 7-coordinate geometry to one Zr(3), three equivalent Zr(1), and three equivalent Zr(2) atoms. In the second Pd site, Pd(2) is bonded in a 8-coordinate geometry to four equivalent Zr(1) and four equivalent Zr(2) atoms. In the third Pd site, Pd(3) is bonded in a distorted square co-planar geometry to two equivalent Zr(3) and four equivalent Zr(1) atoms.