TmGd(FeNi4)2 crystallizes in the orthorhombic Pmm2 space group. Tm(1) is bonded in a 18-coordinate geometry to one Fe(2), two equivalent Fe(1), one Ni(1), two equivalent Ni(2), four equivalent Ni(3), four equivalent Ni(5), and four equivalent Ni(6) atoms. Gd(1) is bonded in a 18-coordinate geometry to one Fe(1), two equivalent Fe(2), one Ni(2), two equivalent Ni(1), four equivalent Ni(4), four equivalent Ni(5), and four equivalent Ni(6) atoms. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Tm(1), one Gd(1), one Ni(2), two equivalent Ni(1), two equivalent Ni(3), and four equivalent Ni(5) atoms to form distorted FeGdTm2Ni9 cuboctahedra that share corners with four equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, corners with four equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, corners with five equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, corners with eight equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, edges with two equivalent Fe(1)GdTm2Ni9 cuboctahedra, edges with four equivalent Fe(2)Gd2TmNi9 cuboctahedra,  a faceface with one Ni(2)GdTm2Fe3Ni6 cuboctahedra, faces with two equivalent Fe(1)GdTm2Ni9 cuboctahedra, faces with two equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, faces with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, faces with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, faces with four equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, and faces with eight equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra. In the second Fe site, Fe(2) is bonded to one Tm(1), two equivalent Gd(1), one Ni(1), two equivalent Ni(2), two equivalent Ni(4), and four equivalent Ni(6) atoms to form distorted FeGd2TmNi9 cuboctahedra that share corners with four equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, corners with four equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, corners with five equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, corners with eight equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, edges with two equivalent Fe(2)Gd2TmNi9 cuboctahedra, edges with four equivalent Fe(1)GdTm2Ni9 cuboctahedra,  a faceface with one Ni(1)Gd2TmFe3Ni6 cuboctahedra, faces with two equivalent Fe(2)Gd2TmNi9 cuboctahedra, faces with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, faces with two equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, faces with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, faces with four equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, and faces with eight equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra. There are six inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one Tm(1), two equivalent Gd(1), one Fe(2), two equivalent Fe(1), two equivalent Ni(4), and four equivalent Ni(5) atoms to form distorted NiGd2TmFe3Ni6 cuboctahedra that share corners with four equivalent Fe(1)GdTm2Ni9 cuboctahedra, corners with four equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, corners with five equivalent Fe(2)Gd2TmNi9 cuboctahedra, corners with eight equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, edges with two equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, edges with four equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra,  a faceface with one Fe(2)Gd2TmNi9 cuboctahedra, faces with two equivalent Fe(1)GdTm2Ni9 cuboctahedra, faces with two equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, faces with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, faces with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, faces with four equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, and faces with eight equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra. In the second Ni site, Ni(2) is bonded to two equivalent Tm(1), one Gd(1), one Fe(1), two equivalent Fe(2), two equivalent Ni(3), and four equivalent Ni(6) atoms to form distorted NiGdTm2Fe3Ni6 cuboctahedra that share corners with four equivalent Fe(2)Gd2TmNi9 cuboctahedra, corners with four equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, corners with five equivalent Fe(1)GdTm2Ni9 cuboctahedra, corners with eight equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, edges with two equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, edges with four equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra,  a faceface with one Fe(1)GdTm2Ni9 cuboctahedra, faces with two equivalent Fe(2)Gd2TmNi9 cuboctahedra, faces with two equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, faces with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, faces with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, faces with four equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, and faces with eight equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra. In the third Ni site, Ni(3) is bonded to four equivalent Tm(1), two equivalent Fe(1), two equivalent Ni(2), two equivalent Ni(5), and two equivalent Ni(6) atoms to form distorted NiTm4Fe2Ni6 cuboctahedra that share corners with four equivalent Fe(1)GdTm2Ni9 cuboctahedra, corners with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, corners with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, corners with four equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, corners with four equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, corners with four equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, edges with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, edges with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, edges with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, faces with two equivalent Fe(1)GdTm2Ni9 cuboctahedra, faces with two equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, faces with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, faces with four equivalent Fe(2)Gd2TmNi9 cuboctahedra, faces with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, faces with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, and faces with four equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra. In the fourth Ni site, Ni(4) is bonded to four equivalent Gd(1), two equivalent Fe(2), two equivalent Ni(1), two equivalent Ni(5), and two equivalent Ni(6) atoms to form NiGd4Fe2Ni6 cuboctahedra that share corners with four equivalent Fe(2)Gd2TmNi9 cuboctahedra, corners with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, corners with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, corners with four equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, corners with four equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, corners with four equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, edges with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, edges with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, edges with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, faces with two equivalent Fe(2)Gd2TmNi9 cuboctahedra, faces with two equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, faces with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, faces with four equivalent Fe(1)GdTm2Ni9 cuboctahedra, faces with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, faces with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, and faces with four equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra. In the fifth Ni site, Ni(5) is bonded to two equivalent Tm(1), two equivalent Gd(1), two equivalent Fe(1), one Ni(3), one Ni(4), two equivalent Ni(1), and two equivalent Ni(5) atoms to form distorted NiGd2Tm2Fe2Ni6 cuboctahedra that share corners with two equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, corners with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, corners with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, corners with four equivalent Fe(2)Gd2TmNi9 cuboctahedra, corners with four equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, corners with ten equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, edges with two equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, edges with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, edges with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, edges with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, faces with two equivalent Fe(2)Gd2TmNi9 cuboctahedra, faces with two equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, faces with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, faces with two equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, faces with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, faces with four equivalent Fe(1)GdTm2Ni9 cuboctahedra, faces with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, and faces with four equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra. In the sixth Ni site, Ni(6) is bonded to two equivalent Tm(1), two equivalent Gd(1), two equivalent Fe(2), one Ni(3), one Ni(4), two equivalent Ni(2), and two equivalent Ni(6) atoms to form distorted NiGd2Tm2Fe2Ni6 cuboctahedra that share corners with two equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, corners with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, corners with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, corners with four equivalent Fe(1)GdTm2Ni9 cuboctahedra, corners with four equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, corners with ten equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, edges with two equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, edges with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, edges with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, edges with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, faces with two equivalent Fe(1)GdTm2Ni9 cuboctahedra, faces with two equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, faces with two equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, faces with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, faces with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, faces with four equivalent Fe(2)Gd2TmNi9 cuboctahedra, faces with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, and faces with four equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra.
TmGd(FeNi4)2 crystallizes in the orthorhombic Pmm2 space group. Tm(1) is bonded in a 18-coordinate geometry to one Fe(2), two equivalent Fe(1), one Ni(1), two equivalent Ni(2), four equivalent Ni(3), four equivalent Ni(5), and four equivalent Ni(6) atoms. The Tm(1)-Fe(2) bond length is 2.82 Å. Both Tm(1)-Fe(1) bond lengths are 2.83 Å. The Tm(1)-Ni(1) bond length is 2.83 Å. Both Tm(1)-Ni(2) bond lengths are 2.83 Å. All Tm(1)-Ni(3) bond lengths are 3.15 Å. All Tm(1)-Ni(5) bond lengths are 3.13 Å. All Tm(1)-Ni(6) bond lengths are 3.13 Å. Gd(1) is bonded in a 18-coordinate geometry to one Fe(1), two equivalent Fe(2), one Ni(2), two equivalent Ni(1), four equivalent Ni(4), four equivalent Ni(5), and four equivalent Ni(6) atoms. The Gd(1)-Fe(1) bond length is 2.86 Å. Both Gd(1)-Fe(2) bond lengths are 2.85 Å. The Gd(1)-Ni(2) bond length is 2.86 Å. Both Gd(1)-Ni(1) bond lengths are 2.85 Å. All Gd(1)-Ni(4) bond lengths are 3.15 Å. All Gd(1)-Ni(5) bond lengths are 3.17 Å. All Gd(1)-Ni(6) bond lengths are 3.17 Å. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Tm(1), one Gd(1), one Ni(2), two equivalent Ni(1), two equivalent Ni(3), and four equivalent Ni(5) atoms to form distorted FeGdTm2Ni9 cuboctahedra that share corners with four equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, corners with four equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, corners with five equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, corners with eight equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, edges with two equivalent Fe(1)GdTm2Ni9 cuboctahedra, edges with four equivalent Fe(2)Gd2TmNi9 cuboctahedra,  a faceface with one Ni(2)GdTm2Fe3Ni6 cuboctahedra, faces with two equivalent Fe(1)GdTm2Ni9 cuboctahedra, faces with two equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, faces with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, faces with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, faces with four equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, and faces with eight equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra. The Fe(1)-Ni(2) bond length is 2.81 Å. Both Fe(1)-Ni(1) bond lengths are 2.84 Å. Both Fe(1)-Ni(3) bond lengths are 2.42 Å. All Fe(1)-Ni(5) bond lengths are 2.43 Å. In the second Fe site, Fe(2) is bonded to one Tm(1), two equivalent Gd(1), one Ni(1), two equivalent Ni(2), two equivalent Ni(4), and four equivalent Ni(6) atoms to form distorted FeGd2TmNi9 cuboctahedra that share corners with four equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, corners with four equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, corners with five equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, corners with eight equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, edges with two equivalent Fe(2)Gd2TmNi9 cuboctahedra, edges with four equivalent Fe(1)GdTm2Ni9 cuboctahedra,  a faceface with one Ni(1)Gd2TmFe3Ni6 cuboctahedra, faces with two equivalent Fe(2)Gd2TmNi9 cuboctahedra, faces with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, faces with two equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, faces with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, faces with four equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, and faces with eight equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra. The Fe(2)-Ni(1) bond length is 2.87 Å. Both Fe(2)-Ni(2) bond lengths are 2.84 Å. Both Fe(2)-Ni(4) bond lengths are 2.43 Å. All Fe(2)-Ni(6) bond lengths are 2.42 Å. There are six inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one Tm(1), two equivalent Gd(1), one Fe(2), two equivalent Fe(1), two equivalent Ni(4), and four equivalent Ni(5) atoms to form distorted NiGd2TmFe3Ni6 cuboctahedra that share corners with four equivalent Fe(1)GdTm2Ni9 cuboctahedra, corners with four equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, corners with five equivalent Fe(2)Gd2TmNi9 cuboctahedra, corners with eight equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, edges with two equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, edges with four equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra,  a faceface with one Fe(2)Gd2TmNi9 cuboctahedra, faces with two equivalent Fe(1)GdTm2Ni9 cuboctahedra, faces with two equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, faces with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, faces with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, faces with four equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, and faces with eight equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra. Both Ni(1)-Ni(4) bond lengths are 2.43 Å. All Ni(1)-Ni(5) bond lengths are 2.42 Å. In the second Ni site, Ni(2) is bonded to two equivalent Tm(1), one Gd(1), one Fe(1), two equivalent Fe(2), two equivalent Ni(3), and four equivalent Ni(6) atoms to form distorted NiGdTm2Fe3Ni6 cuboctahedra that share corners with four equivalent Fe(2)Gd2TmNi9 cuboctahedra, corners with four equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, corners with five equivalent Fe(1)GdTm2Ni9 cuboctahedra, corners with eight equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, edges with two equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, edges with four equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra,  a faceface with one Fe(1)GdTm2Ni9 cuboctahedra, faces with two equivalent Fe(2)Gd2TmNi9 cuboctahedra, faces with two equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, faces with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, faces with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, faces with four equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, and faces with eight equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra. Both Ni(2)-Ni(3) bond lengths are 2.41 Å. All Ni(2)-Ni(6) bond lengths are 2.43 Å. In the third Ni site, Ni(3) is bonded to four equivalent Tm(1), two equivalent Fe(1), two equivalent Ni(2), two equivalent Ni(5), and two equivalent Ni(6) atoms to form distorted NiTm4Fe2Ni6 cuboctahedra that share corners with four equivalent Fe(1)GdTm2Ni9 cuboctahedra, corners with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, corners with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, corners with four equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, corners with four equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, corners with four equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, edges with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, edges with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, edges with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, faces with two equivalent Fe(1)GdTm2Ni9 cuboctahedra, faces with two equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, faces with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, faces with four equivalent Fe(2)Gd2TmNi9 cuboctahedra, faces with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, faces with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, and faces with four equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra. Both Ni(3)-Ni(5) bond lengths are 2.45 Å. Both Ni(3)-Ni(6) bond lengths are 2.44 Å. In the fourth Ni site, Ni(4) is bonded to four equivalent Gd(1), two equivalent Fe(2), two equivalent Ni(1), two equivalent Ni(5), and two equivalent Ni(6) atoms to form NiGd4Fe2Ni6 cuboctahedra that share corners with four equivalent Fe(2)Gd2TmNi9 cuboctahedra, corners with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, corners with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, corners with four equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, corners with four equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, corners with four equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, edges with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, edges with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, edges with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, faces with two equivalent Fe(2)Gd2TmNi9 cuboctahedra, faces with two equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, faces with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, faces with four equivalent Fe(1)GdTm2Ni9 cuboctahedra, faces with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, faces with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, and faces with four equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra. Both Ni(4)-Ni(5) bond lengths are 2.47 Å. Both Ni(4)-Ni(6) bond lengths are 2.48 Å. In the fifth Ni site, Ni(5) is bonded to two equivalent Tm(1), two equivalent Gd(1), two equivalent Fe(1), one Ni(3), one Ni(4), two equivalent Ni(1), and two equivalent Ni(5) atoms to form distorted NiGd2Tm2Fe2Ni6 cuboctahedra that share corners with two equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, corners with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, corners with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, corners with four equivalent Fe(2)Gd2TmNi9 cuboctahedra, corners with four equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, corners with ten equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, edges with two equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, edges with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, edges with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, edges with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, faces with two equivalent Fe(2)Gd2TmNi9 cuboctahedra, faces with two equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, faces with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, faces with two equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra, faces with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, faces with four equivalent Fe(1)GdTm2Ni9 cuboctahedra, faces with four equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, and faces with four equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra. There is one shorter (2.43 Å) and one longer (2.49 Å) Ni(5)-Ni(5) bond length. In the sixth Ni site, Ni(6) is bonded to two equivalent Tm(1), two equivalent Gd(1), two equivalent Fe(2), one Ni(3), one Ni(4), two equivalent Ni(2), and two equivalent Ni(6) atoms to form distorted NiGd2Tm2Fe2Ni6 cuboctahedra that share corners with two equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, corners with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, corners with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, corners with four equivalent Fe(1)GdTm2Ni9 cuboctahedra, corners with four equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, corners with ten equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, edges with two equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, edges with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, edges with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, edges with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, faces with two equivalent Fe(1)GdTm2Ni9 cuboctahedra, faces with two equivalent Ni(5)Gd2Tm2Fe2Ni6 cuboctahedra, faces with two equivalent Ni(1)Gd2TmFe3Ni6 cuboctahedra, faces with two equivalent Ni(4)Gd4Fe2Ni6 cuboctahedra, faces with two equivalent Ni(3)Tm4Fe2Ni6 cuboctahedra, faces with four equivalent Fe(2)Gd2TmNi9 cuboctahedra, faces with four equivalent Ni(6)Gd2Tm2Fe2Ni6 cuboctahedra, and faces with four equivalent Ni(2)GdTm2Fe3Ni6 cuboctahedra. There is one shorter (2.45 Å) and one longer (2.47 Å) Ni(6)-Ni(6) bond length.