Pd8Sb3 crystallizes in the trigonal R-3c space group. There are four inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 3-coordinate geometry to one Pd(3), four equivalent Pd(4), one Sb(2), and two equivalent Sb(1) atoms. In the second Pd site, Pd(2) is bonded in a 4-coordinate geometry to three equivalent Pd(4), one Sb(3), and three equivalent Sb(1) atoms. In the third Pd site, Pd(3) is bonded in a 11-coordinate geometry to one Pd(3), three equivalent Pd(1), three equivalent Pd(4), one Sb(2), and three equivalent Sb(1) atoms. In the fourth Pd site, Pd(4) is bonded in a 13-coordinate geometry to one Pd(2), one Pd(3), three equivalent Pd(4), four equivalent Pd(1), one Sb(1), one Sb(3), and two equivalent Sb(2) atoms. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 10-coordinate geometry to two equivalent Pd(2), two equivalent Pd(3), two equivalent Pd(4), and four equivalent Pd(1) atoms. In the second Sb site, Sb(2) is bonded in a distorted q6 geometry to one Pd(3), three equivalent Pd(1), and six equivalent Pd(4) atoms. In the third Sb site, Sb(3) is bonded in a body-centered cubic geometry to two equivalent Pd(2) and six equivalent Pd(4) atoms.
Pd8Sb3 crystallizes in the trigonal R-3c space group. There are four inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 3-coordinate geometry to one Pd(3), four equivalent Pd(4), one Sb(2), and two equivalent Sb(1) atoms. The Pd(1)-Pd(3) bond length is 2.90 Å. There are a spread of Pd(1)-Pd(4) bond distances ranging from 2.88-3.30 Å. The Pd(1)-Sb(2) bond length is 2.72 Å. There is one shorter (2.67 Å) and one longer (2.77 Å) Pd(1)-Sb(1) bond length. In the second Pd site, Pd(2) is bonded in a 4-coordinate geometry to three equivalent Pd(4), one Sb(3), and three equivalent Sb(1) atoms. All Pd(2)-Pd(4) bond lengths are 3.15 Å. The Pd(2)-Sb(3) bond length is 2.67 Å. All Pd(2)-Sb(1) bond lengths are 2.78 Å. In the third Pd site, Pd(3) is bonded in a 11-coordinate geometry to one Pd(3), three equivalent Pd(1), three equivalent Pd(4), one Sb(2), and three equivalent Sb(1) atoms. The Pd(3)-Pd(3) bond length is 2.74 Å. All Pd(3)-Pd(4) bond lengths are 2.85 Å. The Pd(3)-Sb(2) bond length is 2.65 Å. All Pd(3)-Sb(1) bond lengths are 2.80 Å. In the fourth Pd site, Pd(4) is bonded in a 13-coordinate geometry to one Pd(2), one Pd(3), three equivalent Pd(4), four equivalent Pd(1), one Sb(1), one Sb(3), and two equivalent Sb(2) atoms. There are two shorter (2.92 Å) and one longer (3.11 Å) Pd(4)-Pd(4) bond length. The Pd(4)-Sb(1) bond length is 2.87 Å. The Pd(4)-Sb(3) bond length is 2.61 Å. There is one shorter (2.69 Å) and one longer (2.78 Å) Pd(4)-Sb(2) bond length. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 10-coordinate geometry to two equivalent Pd(2), two equivalent Pd(3), two equivalent Pd(4), and four equivalent Pd(1) atoms. In the second Sb site, Sb(2) is bonded in a distorted q6 geometry to one Pd(3), three equivalent Pd(1), and six equivalent Pd(4) atoms. In the third Sb site, Sb(3) is bonded in a body-centered cubic geometry to two equivalent Pd(2) and six equivalent Pd(4) atoms.