TbWFe6Co5 crystallizes in the orthorhombic Imm2 space group. Tb(1) is bonded in a 20-coordinate geometry to one W(1), two equivalent Fe(2), two equivalent Fe(3), eight equivalent Fe(1), one Co(2), two equivalent Co(1), and four equivalent Co(3) atoms. W(1) is bonded in a 14-coordinate geometry to one Tb(1), two equivalent Fe(2), four equivalent Fe(1), one Co(2), two equivalent Co(3), and four equivalent Co(1) atoms. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Tb(1), one W(1), one Fe(2), one Fe(3), two equivalent Fe(1), one Co(2), two equivalent Co(1), and two equivalent Co(3) atoms to form distorted FeTb2Fe4Co5W cuboctahedra that share corners with two equivalent Fe(2)Tb2Fe4Co4W2 cuboctahedra, corners with two equivalent Fe(3)Tb2Fe4Co6 cuboctahedra, corners with ten equivalent Fe(1)Tb2Fe4Co5W cuboctahedra,  an edgeedge with one Fe(2)Tb2Fe4Co4W2 cuboctahedra,  an edgeedge with one Fe(3)Tb2Fe4Co6 cuboctahedra, edges with four equivalent Fe(1)Tb2Fe4Co5W cuboctahedra, faces with two equivalent Fe(2)Tb2Fe4Co4W2 cuboctahedra, faces with two equivalent Fe(3)Tb2Fe4Co6 cuboctahedra, and faces with six equivalent Fe(1)Tb2Fe4Co5W cuboctahedra. In the second Fe site, Fe(2) is bonded to two equivalent Tb(1), two equivalent W(1), four equivalent Fe(1), two equivalent Co(1), and two equivalent Co(3) atoms to form distorted FeTb2Fe4Co4W2 cuboctahedra that share corners with six equivalent Fe(3)Tb2Fe4Co6 cuboctahedra, corners with eight equivalent Fe(1)Tb2Fe4Co5W cuboctahedra,  an edgeedge with one Fe(3)Tb2Fe4Co6 cuboctahedra, edges with two equivalent Fe(2)Tb2Fe4Co4W2 cuboctahedra, edges with four equivalent Fe(1)Tb2Fe4Co5W cuboctahedra,  a faceface with one Fe(3)Tb2Fe4Co6 cuboctahedra, and faces with eight equivalent Fe(1)Tb2Fe4Co5W cuboctahedra. In the third Fe site, Fe(3) is bonded to two equivalent Tb(1), four equivalent Fe(1), two equivalent Co(1), two equivalent Co(2), and two equivalent Co(3) atoms to form FeTb2Fe4Co6 cuboctahedra that share corners with six equivalent Fe(2)Tb2Fe4Co4W2 cuboctahedra, corners with eight equivalent Fe(1)Tb2Fe4Co5W cuboctahedra,  an edgeedge with one Fe(2)Tb2Fe4Co4W2 cuboctahedra, edges with two equivalent Fe(3)Tb2Fe4Co6 cuboctahedra, edges with four equivalent Fe(1)Tb2Fe4Co5W cuboctahedra,  a faceface with one Fe(2)Tb2Fe4Co4W2 cuboctahedra, and faces with eight equivalent Fe(1)Tb2Fe4Co5W cuboctahedra. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 14-coordinate geometry to one Tb(1), two equivalent W(1), one Fe(2), one Fe(3), four equivalent Fe(1), one Co(1), two equivalent Co(2), and two equivalent Co(3) atoms. In the second Co site, Co(2) is bonded in a distorted single-bond geometry to one Tb(1), one W(1), two equivalent Fe(3), four equivalent Fe(1), two equivalent Co(3), and four equivalent Co(1) atoms. In the third Co site, Co(3) is bonded in a 12-coordinate geometry to two equivalent Tb(1), one W(1), one Fe(2), one Fe(3), four equivalent Fe(1), one Co(2), and two equivalent Co(1) atoms.
TbWFe6Co5 crystallizes in the orthorhombic Imm2 space group. Tb(1) is bonded in a 20-coordinate geometry to one W(1), two equivalent Fe(2), two equivalent Fe(3), eight equivalent Fe(1), one Co(2), two equivalent Co(1), and four equivalent Co(3) atoms. The Tb(1)-W(1) bond length is 3.15 Å. Both Tb(1)-Fe(2) bond lengths are 3.03 Å. Both Tb(1)-Fe(3) bond lengths are 2.99 Å. There are four shorter (3.14 Å) and four longer (3.19 Å) Tb(1)-Fe(1) bond lengths. The Tb(1)-Co(2) bond length is 2.92 Å. Both Tb(1)-Co(1) bond lengths are 2.93 Å. All Tb(1)-Co(3) bond lengths are 2.90 Å. W(1) is bonded in a 14-coordinate geometry to one Tb(1), two equivalent Fe(2), four equivalent Fe(1), one Co(2), two equivalent Co(3), and four equivalent Co(1) atoms. Both W(1)-Fe(2) bond lengths are 2.60 Å. All W(1)-Fe(1) bond lengths are 2.58 Å. The W(1)-Co(2) bond length is 2.34 Å. Both W(1)-Co(3) bond lengths are 2.62 Å. All W(1)-Co(1) bond lengths are 2.84 Å. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Tb(1), one W(1), one Fe(2), one Fe(3), two equivalent Fe(1), one Co(2), two equivalent Co(1), and two equivalent Co(3) atoms to form distorted FeTb2Fe4Co5W cuboctahedra that share corners with two equivalent Fe(2)Tb2Fe4Co4W2 cuboctahedra, corners with two equivalent Fe(3)Tb2Fe4Co6 cuboctahedra, corners with ten equivalent Fe(1)Tb2Fe4Co5W cuboctahedra,  an edgeedge with one Fe(2)Tb2Fe4Co4W2 cuboctahedra,  an edgeedge with one Fe(3)Tb2Fe4Co6 cuboctahedra, edges with four equivalent Fe(1)Tb2Fe4Co5W cuboctahedra, faces with two equivalent Fe(2)Tb2Fe4Co4W2 cuboctahedra, faces with two equivalent Fe(3)Tb2Fe4Co6 cuboctahedra, and faces with six equivalent Fe(1)Tb2Fe4Co5W cuboctahedra. The Fe(1)-Fe(2) bond length is 2.37 Å. The Fe(1)-Fe(3) bond length is 2.37 Å. There is one shorter (2.30 Å) and one longer (2.33 Å) Fe(1)-Fe(1) bond length. The Fe(1)-Co(2) bond length is 2.50 Å. There is one shorter (2.52 Å) and one longer (2.59 Å) Fe(1)-Co(1) bond length. There is one shorter (2.39 Å) and one longer (2.45 Å) Fe(1)-Co(3) bond length. In the second Fe site, Fe(2) is bonded to two equivalent Tb(1), two equivalent W(1), four equivalent Fe(1), two equivalent Co(1), and two equivalent Co(3) atoms to form distorted FeTb2Fe4Co4W2 cuboctahedra that share corners with six equivalent Fe(3)Tb2Fe4Co6 cuboctahedra, corners with eight equivalent Fe(1)Tb2Fe4Co5W cuboctahedra,  an edgeedge with one Fe(3)Tb2Fe4Co6 cuboctahedra, edges with two equivalent Fe(2)Tb2Fe4Co4W2 cuboctahedra, edges with four equivalent Fe(1)Tb2Fe4Co5W cuboctahedra,  a faceface with one Fe(3)Tb2Fe4Co6 cuboctahedra, and faces with eight equivalent Fe(1)Tb2Fe4Co5W cuboctahedra. Both Fe(2)-Co(1) bond lengths are 2.61 Å. Both Fe(2)-Co(3) bond lengths are 2.58 Å. In the third Fe site, Fe(3) is bonded to two equivalent Tb(1), four equivalent Fe(1), two equivalent Co(1), two equivalent Co(2), and two equivalent Co(3) atoms to form FeTb2Fe4Co6 cuboctahedra that share corners with six equivalent Fe(2)Tb2Fe4Co4W2 cuboctahedra, corners with eight equivalent Fe(1)Tb2Fe4Co5W cuboctahedra,  an edgeedge with one Fe(2)Tb2Fe4Co4W2 cuboctahedra, edges with two equivalent Fe(3)Tb2Fe4Co6 cuboctahedra, edges with four equivalent Fe(1)Tb2Fe4Co5W cuboctahedra,  a faceface with one Fe(2)Tb2Fe4Co4W2 cuboctahedra, and faces with eight equivalent Fe(1)Tb2Fe4Co5W cuboctahedra. Both Fe(3)-Co(1) bond lengths are 2.54 Å. Both Fe(3)-Co(2) bond lengths are 2.53 Å. Both Fe(3)-Co(3) bond lengths are 2.62 Å. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 14-coordinate geometry to one Tb(1), two equivalent W(1), one Fe(2), one Fe(3), four equivalent Fe(1), one Co(1), two equivalent Co(2), and two equivalent Co(3) atoms. The Co(1)-Co(1) bond length is 2.39 Å. Both Co(1)-Co(2) bond lengths are 2.87 Å. Both Co(1)-Co(3) bond lengths are 2.59 Å. In the second Co site, Co(2) is bonded in a distorted single-bond geometry to one Tb(1), one W(1), two equivalent Fe(3), four equivalent Fe(1), two equivalent Co(3), and four equivalent Co(1) atoms. Both Co(2)-Co(3) bond lengths are 2.67 Å. In the third Co site, Co(3) is bonded in a 12-coordinate geometry to two equivalent Tb(1), one W(1), one Fe(2), one Fe(3), four equivalent Fe(1), one Co(2), and two equivalent Co(1) atoms.