Dy3Pd2Ga9 crystallizes in the orthorhombic Immm space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to four equivalent Ga(1) and eight equivalent Ga(2) atoms to form DyGa12 cuboctahedra that share edges with two equivalent Ga(3)Dy4Ga4Pd4 cuboctahedra and faces with two equivalent Dy(1)Ga12 cuboctahedra. In the second Dy site, Dy(2) is bonded in a 10-coordinate geometry to two equivalent Pd(1), two equivalent Ga(3), four equivalent Ga(2), and six equivalent Ga(1) atoms. Pd(1) is bonded in a 10-coordinate geometry to two equivalent Dy(2), two equivalent Ga(2), two equivalent Ga(3), and four equivalent Ga(1) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to one Dy(1), three equivalent Dy(2), two equivalent Pd(1), one Ga(3), and three equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to two equivalent Dy(1), two equivalent Dy(2), one Pd(1), one Ga(2), and three equivalent Ga(1) atoms. In the third Ga site, Ga(3) is bonded to four equivalent Dy(2), four equivalent Pd(1), and four equivalent Ga(1) atoms to form distorted GaDy4Ga4Pd4 cuboctahedra that share edges with two equivalent Dy(1)Ga12 cuboctahedra and faces with two equivalent Ga(3)Dy4Ga4Pd4 cuboctahedra.
Dy3Pd2Ga9 crystallizes in the orthorhombic Immm space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to four equivalent Ga(1) and eight equivalent Ga(2) atoms to form DyGa12 cuboctahedra that share edges with two equivalent Ga(3)Dy4Ga4Pd4 cuboctahedra and faces with two equivalent Dy(1)Ga12 cuboctahedra. All Dy(1)-Ga(1) bond lengths are 3.20 Å. All Dy(1)-Ga(2) bond lengths are 3.18 Å. In the second Dy site, Dy(2) is bonded in a 10-coordinate geometry to two equivalent Pd(1), two equivalent Ga(3), four equivalent Ga(2), and six equivalent Ga(1) atoms. Both Dy(2)-Pd(1) bond lengths are 3.06 Å. Both Dy(2)-Ga(3) bond lengths are 3.31 Å. All Dy(2)-Ga(2) bond lengths are 3.10 Å. There are four shorter (3.08 Å) and two longer (3.38 Å) Dy(2)-Ga(1) bond lengths. Pd(1) is bonded in a 10-coordinate geometry to two equivalent Dy(2), two equivalent Ga(2), two equivalent Ga(3), and four equivalent Ga(1) atoms. Both Pd(1)-Ga(2) bond lengths are 2.63 Å. Both Pd(1)-Ga(3) bond lengths are 2.77 Å. All Pd(1)-Ga(1) bond lengths are 2.79 Å. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to one Dy(1), three equivalent Dy(2), two equivalent Pd(1), one Ga(3), and three equivalent Ga(2) atoms. The Ga(1)-Ga(3) bond length is 2.71 Å. There are two shorter (2.59 Å) and one longer (2.72 Å) Ga(1)-Ga(2) bond length. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to two equivalent Dy(1), two equivalent Dy(2), one Pd(1), one Ga(2), and three equivalent Ga(1) atoms. The Ga(2)-Ga(2) bond length is 2.54 Å. In the third Ga site, Ga(3) is bonded to four equivalent Dy(2), four equivalent Pd(1), and four equivalent Ga(1) atoms to form distorted GaDy4Ga4Pd4 cuboctahedra that share edges with two equivalent Dy(1)Ga12 cuboctahedra and faces with two equivalent Ga(3)Dy4Ga4Pd4 cuboctahedra.