Tm6Pd5Ga17 crystallizes in the monoclinic C2/m space group. There are three inequivalent Tm sites. In the first Tm site, Tm(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 TmGa12 cuboctahedra that share  an edgeedge with one Pd(3)Tm4Ga4Pd4 cuboctahedra,  an edgeedge with one Ga(9)Tm4Ga4Pd4 cuboctahedra, and faces with two equivalent Tm(1)Ga12 cuboctahedra. In the second Tm site, Tm(2) is bonded in a 10-coordinate geometry to two equivalent Pd(2), one Ga(3), two equivalent Ga(4), two equivalent Ga(6), two equivalent Ga(8), two equivalent Ga(9), and three equivalent Ga(1) atoms. In the third Tm site, Tm(3) is bonded in a 12-coordinate geometry to two equivalent Pd(1), two equivalent Pd(3), one Ga(4), two equivalent Ga(2), two equivalent Ga(3), two equivalent Ga(5), and two equivalent Ga(7) atoms. There are three inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 8-coordinate geometry to two equivalent Tm(3), two equivalent Pd(3), one Ga(5), one Ga(8), two equivalent Ga(2), and two equivalent Ga(3) atoms. In the second Pd site, Pd(2) is bonded in a 10-coordinate geometry to two equivalent Tm(2), one Ga(6), one Ga(7), two equivalent Ga(1), two equivalent Ga(4), and two equivalent Ga(9) atoms. In the third Pd site, Pd(3) is bonded to four equivalent Tm(3), four equivalent Pd(1), two equivalent Ga(2), and two equivalent Ga(3) atoms to form distorted PdTm4Ga4Pd4 cuboctahedra that share edges with two equivalent Tm(1)Ga12 cuboctahedra and faces with two equivalent Pd(3)Tm4Ga4Pd4 cuboctahedra. There are nine inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to one Tm(1), three equivalent Tm(2), two equivalent Pd(2), one Ga(9), and three equivalent Ga(6) atoms. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to one Tm(1), two equivalent Tm(3), one Pd(3), two equivalent Pd(1), and three equivalent Ga(5) atoms. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to one Tm(1), one Tm(2), two equivalent Tm(3), one Pd(3), two equivalent Pd(1), one Ga(7), and two equivalent Ga(8) atoms. In the fourth Ga site, Ga(4) is bonded in a 10-coordinate geometry to one Tm(1), one Tm(3), two equivalent Tm(2), two equivalent Pd(2), one Ga(8), one Ga(9), and two equivalent Ga(7) atoms. In the fifth Ga site, Ga(5) is bonded in a 9-coordinate geometry to two equivalent Tm(1), two equivalent Tm(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 Tm(1), two equivalent Tm(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 Tm(1), two equivalent Tm(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 Tm(1), two equivalent Tm(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 Tm(2), four equivalent Pd(2), two equivalent Ga(1), and two equivalent Ga(4) atoms to form distorted GaTm4Ga4Pd4 cuboctahedra that share edges with two equivalent Tm(1)Ga12 cuboctahedra and faces with two equivalent Ga(9)Tm4Ga4Pd4 cuboctahedra.
Tm6Pd5Ga17 crystallizes in the monoclinic C2/m space group. There are three inequivalent Tm sites. In the first Tm site, Tm(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 TmGa12 cuboctahedra that share  an edgeedge with one Pd(3)Tm4Ga4Pd4 cuboctahedra,  an edgeedge with one Ga(9)Tm4Ga4Pd4 cuboctahedra, and faces with two equivalent Tm(1)Ga12 cuboctahedra. The Tm(1)-Ga(1) bond length is 3.23 Å. The Tm(1)-Ga(2) bond length is 3.16 Å. The Tm(1)-Ga(3) bond length is 3.18 Å. The Tm(1)-Ga(4) bond length is 3.22 Å. Both Tm(1)-Ga(5) bond lengths are 3.16 Å. Both Tm(1)-Ga(6) bond lengths are 3.15 Å. Both Tm(1)-Ga(7) bond lengths are 3.17 Å. Both Tm(1)-Ga(8) bond lengths are 3.15 Å. In the second Tm site, Tm(2) is bonded in a 10-coordinate geometry to two equivalent Pd(2), one Ga(3), two equivalent Ga(4), two equivalent Ga(6), two equivalent Ga(8), two equivalent Ga(9), and three equivalent Ga(1) atoms. There is one shorter (3.03 Å) and one longer (3.04 Å) Tm(2)-Pd(2) bond length. The Tm(2)-Ga(3) bond length is 3.43 Å. Both Tm(2)-Ga(4) bond lengths are 3.10 Å. Both Tm(2)-Ga(6) bond lengths are 3.08 Å. Both Tm(2)-Ga(8) bond lengths are 3.03 Å. Both Tm(2)-Ga(9) bond lengths are 3.28 Å. There are two shorter (3.09 Å) and one longer (3.37 Å) Tm(2)-Ga(1) bond length. In the third Tm site, Tm(3) is bonded in a 12-coordinate geometry to two equivalent Pd(1), two equivalent Pd(3), one Ga(4), two equivalent Ga(2), two equivalent Ga(3), two equivalent Ga(5), and two equivalent Ga(7) atoms. There is one shorter (3.06 Å) and one longer (3.07 Å) Tm(3)-Pd(1) bond length. Both Tm(3)-Pd(3) bond lengths are 3.19 Å. The Tm(3)-Ga(4) bond length is 3.43 Å. Both Tm(3)-Ga(2) bond lengths are 3.06 Å. Both Tm(3)-Ga(3) bond lengths are 3.07 Å. Both Tm(3)-Ga(5) bond lengths are 3.08 Å. Both Tm(3)-Ga(7) bond lengths are 3.11 Å. There are three inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 8-coordinate geometry to two equivalent Tm(3), two equivalent Pd(3), one Ga(5), one Ga(8), two equivalent Ga(2), and two equivalent Ga(3) atoms. Both Pd(1)-Pd(3) bond lengths are 2.88 Å. The Pd(1)-Ga(5) bond length is 2.58 Å. The Pd(1)-Ga(8) bond length is 2.54 Å. Both Pd(1)-Ga(2) bond lengths are 2.69 Å. Both Pd(1)-Ga(3) bond lengths are 2.69 Å. In the second Pd site, Pd(2) is bonded in a 10-coordinate geometry to two equivalent Tm(2), one Ga(6), one Ga(7), two equivalent Ga(1), two equivalent Ga(4), and two equivalent Ga(9) atoms. The Pd(2)-Ga(6) bond length is 2.63 Å. The Pd(2)-Ga(7) bond length is 2.64 Å. Both Pd(2)-Ga(1) bond lengths are 2.77 Å. Both Pd(2)-Ga(4) bond lengths are 2.76 Å. Both Pd(2)-Ga(9) bond lengths are 2.75 Å. In the third Pd site, Pd(3) is bonded to four equivalent Tm(3), four equivalent Pd(1), two equivalent Ga(2), and two equivalent Ga(3) atoms to form distorted PdTm4Ga4Pd4 cuboctahedra that share edges with two equivalent Tm(1)Ga12 cuboctahedra and faces with two equivalent Pd(3)Tm4Ga4Pd4 cuboctahedra. Both Pd(3)-Ga(2) bond lengths are 2.65 Å. Both Pd(3)-Ga(3) bond lengths are 2.64 Å. There are nine inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to one Tm(1), three equivalent Tm(2), two equivalent Pd(2), one Ga(9), and three equivalent Ga(6) atoms. The Ga(1)-Ga(9) bond length is 2.73 Å. There are two shorter (2.57 Å) and one longer (2.69 Å) Ga(1)-Ga(6) bond length. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to one Tm(1), two equivalent Tm(3), one Pd(3), two equivalent Pd(1), and three equivalent Ga(5) atoms. There are two shorter (2.62 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 Tm(1), one Tm(2), two equivalent Tm(3), one Pd(3), two equivalent Pd(1), one Ga(7), and two equivalent Ga(8) atoms. The Ga(3)-Ga(7) bond length is 2.75 Å. Both Ga(3)-Ga(8) bond lengths are 2.62 Å. In the fourth Ga site, Ga(4) is bonded in a 10-coordinate geometry to one Tm(1), one Tm(3), two equivalent Tm(2), two equivalent Pd(2), one Ga(8), one Ga(9), and two equivalent Ga(7) atoms. The Ga(4)-Ga(8) bond length is 2.68 Å. The Ga(4)-Ga(9) bond length is 2.71 Å. Both Ga(4)-Ga(7) bond lengths are 2.57 Å. In the fifth Ga site, Ga(5) is bonded in a 9-coordinate geometry to two equivalent Tm(1), two equivalent Tm(3), one Pd(1), one Ga(7), and three equivalent Ga(2) atoms. The Ga(5)-Ga(7) bond length is 2.54 Å. In the sixth Ga site, Ga(6) is bonded in a 9-coordinate geometry to two equivalent Tm(1), two equivalent Tm(2), one Pd(2), one Ga(8), and three equivalent Ga(1) atoms. The Ga(6)-Ga(8) bond length is 2.53 Å. In the seventh Ga site, Ga(7) is bonded in a 9-coordinate geometry to two equivalent Tm(1), two equivalent Tm(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 Tm(1), two equivalent Tm(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 Tm(2), four equivalent Pd(2), two equivalent Ga(1), and two equivalent Ga(4) atoms to form distorted GaTm4Ga4Pd4 cuboctahedra that share edges with two equivalent Tm(1)Ga12 cuboctahedra and faces with two equivalent Ga(9)Tm4Ga4Pd4 cuboctahedra.