Y6Pd5Ga17 crystallizes in the monoclinic C2/m space group. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded to one Ga(1), one Ga(2), one Ga(3), one Ga(4), two equivalent Ga(5), two equivalent Ga(6), two equivalent Ga(7), and two equivalent Ga(8) atoms to form distorted YGa12 cuboctahedra that share  an edgeedge with one Ga(9)Y4Ga4Pd4 cuboctahedra and faces with two equivalent Y(1)Ga12 cuboctahedra. In the second Y site, Y(2) is bonded in a 12-coordinate geometry to two equivalent Pd(2), two equivalent Pd(3), one Ga(3), two equivalent Ga(1), two equivalent Ga(4), two equivalent Ga(6), and two equivalent Ga(8) atoms. In the third Y site, Y(3) is bonded in a 10-coordinate geometry to two equivalent Pd(1), two equivalent Ga(3), two equivalent Ga(5), two equivalent Ga(7), two equivalent Ga(9), and three equivalent Ga(2) atoms. There are three inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 10-coordinate geometry to two equivalent Y(3), one Ga(5), one Ga(8), two equivalent Ga(2), two equivalent Ga(3), and two equivalent Ga(9) atoms. In the second Pd site, Pd(2) is bonded in a 8-coordinate geometry to two equivalent Y(2), one Ga(6), one Ga(7), two equivalent Ga(1), and two equivalent Ga(4) atoms. In the third Pd site, Pd(3) is bonded in a 8-coordinate geometry to four equivalent Y(2), two equivalent Ga(1), and two equivalent Ga(4) atoms. There are nine inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to one Y(1), two equivalent Y(2), one Pd(3), two equivalent Pd(2), and three equivalent Ga(6) atoms. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Y(1), three equivalent Y(3), two equivalent Pd(1), one Ga(9), and three equivalent Ga(5) atoms. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to one Y(1), one Y(2), two equivalent Y(3), two equivalent Pd(1), one Ga(7), one Ga(9), and two equivalent Ga(8) atoms. In the fourth Ga site, Ga(4) is bonded in a 9-coordinate geometry to one Y(1), two equivalent Y(2), one Pd(3), two equivalent Pd(2), one Ga(8), and two equivalent Ga(7) atoms. In the fifth Ga site, Ga(5) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(3), one Pd(1), one Ga(7), and three equivalent Ga(2) atoms. In the sixth Ga site, Ga(6) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(2), one Pd(2), one Ga(8), and three equivalent Ga(1) atoms. In the seventh Ga site, Ga(7) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(3), one Pd(2), one Ga(3), one Ga(5), and two equivalent Ga(4) atoms. In the eighth Ga site, Ga(8) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(2), one Pd(1), one Ga(4), one Ga(6), and two equivalent Ga(3) atoms. In the ninth Ga site, Ga(9) is bonded to four equivalent Y(3), four equivalent Pd(1), two equivalent Ga(2), and two equivalent Ga(3) atoms to form GaY4Ga4Pd4 cuboctahedra that share edges with two equivalent Y(1)Ga12 cuboctahedra and faces with two equivalent Ga(9)Y4Ga4Pd4 cuboctahedra.
Y6Pd5Ga17 crystallizes in the monoclinic C2/m space group. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded to one Ga(1), one Ga(2), one Ga(3), one Ga(4), two equivalent Ga(5), two equivalent Ga(6), two equivalent Ga(7), and two equivalent Ga(8) atoms to form distorted YGa12 cuboctahedra that share  an edgeedge with one Ga(9)Y4Ga4Pd4 cuboctahedra and faces with two equivalent Y(1)Ga12 cuboctahedra. The Y(1)-Ga(1) bond length is 3.17 Å. The Y(1)-Ga(2) bond length is 3.21 Å. The Y(1)-Ga(3) bond length is 3.19 Å. The Y(1)-Ga(4) bond length is 3.18 Å. Both Y(1)-Ga(5) bond lengths are 3.15 Å. Both Y(1)-Ga(6) bond lengths are 3.17 Å. Both Y(1)-Ga(7) bond lengths are 3.16 Å. Both Y(1)-Ga(8) bond lengths are 3.16 Å. In the second Y site, Y(2) is bonded in a 12-coordinate geometry to two equivalent Pd(2), two equivalent Pd(3), one Ga(3), two equivalent Ga(1), two equivalent Ga(4), two equivalent Ga(6), and two equivalent Ga(8) atoms. There is one shorter (3.08 Å) and one longer (3.09 Å) Y(2)-Pd(2) bond length. Both Y(2)-Pd(3) bond lengths are 3.11 Å. The Y(2)-Ga(3) bond length is 3.48 Å. Both Y(2)-Ga(1) bond lengths are 3.05 Å. Both Y(2)-Ga(4) bond lengths are 3.04 Å. Both Y(2)-Ga(6) bond lengths are 3.08 Å. Both Y(2)-Ga(8) bond lengths are 3.11 Å. In the third Y site, Y(3) is bonded in a 10-coordinate geometry to two equivalent Pd(1), two equivalent Ga(3), two equivalent Ga(5), two equivalent Ga(7), two equivalent Ga(9), and three equivalent Ga(2) atoms. There is one shorter (3.06 Å) and one longer (3.07 Å) Y(3)-Pd(1) bond length. Both Y(3)-Ga(3) bond lengths are 3.07 Å. Both Y(3)-Ga(5) bond lengths are 3.07 Å. Both Y(3)-Ga(7) bond lengths are 3.04 Å. Both Y(3)-Ga(9) bond lengths are 3.22 Å. There are two shorter (3.05 Å) and one longer (3.40 Å) Y(3)-Ga(2) bond length. There are three inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 10-coordinate geometry to two equivalent Y(3), one Ga(5), one Ga(8), two equivalent Ga(2), two equivalent Ga(3), and two equivalent Ga(9) atoms. The Pd(1)-Ga(5) bond length is 2.58 Å. The Pd(1)-Ga(8) bond length is 2.61 Å. Both Pd(1)-Ga(2) bond lengths are 2.73 Å. Both Pd(1)-Ga(3) bond lengths are 2.72 Å. Both Pd(1)-Ga(9) bond lengths are 2.81 Å. In the second Pd site, Pd(2) is bonded in a 8-coordinate geometry to two equivalent Y(2), one Ga(6), one Ga(7), two equivalent Ga(1), and two equivalent Ga(4) atoms. The Pd(2)-Ga(6) bond length is 2.54 Å. The Pd(2)-Ga(7) bond length is 2.52 Å. Both Pd(2)-Ga(1) bond lengths are 2.64 Å. Both Pd(2)-Ga(4) bond lengths are 2.65 Å. In the third Pd site, Pd(3) is bonded in a 8-coordinate geometry to four equivalent Y(2), two equivalent Ga(1), and two equivalent Ga(4) atoms. Both Pd(3)-Ga(1) bond lengths are 2.65 Å. Both Pd(3)-Ga(4) bond lengths are 2.63 Å. There are nine inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to one Y(1), two equivalent Y(2), one Pd(3), two equivalent Pd(2), and three equivalent Ga(6) atoms. There are two shorter (2.62 Å) and one longer (2.68 Å) Ga(1)-Ga(6) bond length. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Y(1), three equivalent Y(3), two equivalent Pd(1), one Ga(9), and three equivalent Ga(5) atoms. The Ga(2)-Ga(9) bond length is 2.71 Å. There are two shorter (2.55 Å) and one longer (2.70 Å) Ga(2)-Ga(5) bond length. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to one Y(1), one Y(2), two equivalent Y(3), two equivalent Pd(1), one Ga(7), one Ga(9), and two equivalent Ga(8) atoms. The Ga(3)-Ga(7) bond length is 2.66 Å. The Ga(3)-Ga(9) bond length is 2.73 Å. Both Ga(3)-Ga(8) bond lengths are 2.56 Å. In the fourth Ga site, Ga(4) is bonded in a 9-coordinate geometry to one Y(1), two equivalent Y(2), one Pd(3), two equivalent Pd(2), one Ga(8), and two equivalent Ga(7) atoms. The Ga(4)-Ga(8) bond length is 2.74 Å. Both Ga(4)-Ga(7) bond lengths are 2.61 Å. In the fifth Ga site, Ga(5) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(3), one Pd(1), one Ga(7), and three equivalent Ga(2) atoms. The Ga(5)-Ga(7) bond length is 2.51 Å. In the sixth Ga site, Ga(6) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(2), one Pd(2), one Ga(8), and three equivalent Ga(1) atoms. The Ga(6)-Ga(8) bond length is 2.52 Å. In the seventh Ga site, Ga(7) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(3), one Pd(2), one Ga(3), one Ga(5), and two equivalent Ga(4) atoms. In the eighth Ga site, Ga(8) is bonded in a 9-coordinate geometry to two equivalent Y(1), two equivalent Y(2), one Pd(1), one Ga(4), one Ga(6), and two equivalent Ga(3) atoms. In the ninth Ga site, Ga(9) is bonded to four equivalent Y(3), four equivalent Pd(1), two equivalent Ga(2), and two equivalent Ga(3) atoms to form GaY4Ga4Pd4 cuboctahedra that share edges with two equivalent Y(1)Ga12 cuboctahedra and faces with two equivalent Ga(9)Y4Ga4Pd4 cuboctahedra.