Lu(VFe5)2 crystallizes in the orthorhombic Immm space group. Lu(1) is bonded in a 20-coordinate geometry to two equivalent V(1), two equivalent Fe(4), four equivalent Fe(2), four equivalent Fe(3), and eight equivalent Fe(1) atoms. V(1) is bonded in a 14-coordinate geometry to one Lu(1), one V(1), two equivalent Fe(2), two equivalent Fe(3), four equivalent Fe(1), and four equivalent Fe(4) atoms. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Lu(1), two equivalent V(1), two equivalent Fe(1), two equivalent Fe(2), two equivalent Fe(3), and two equivalent Fe(4) atoms to form a mixture of distorted edge, corner, and face-sharing FeLu2V2Fe8 cuboctahedra. In the second Fe site, Fe(2) is bonded to two equivalent Lu(1), two equivalent V(1), two equivalent Fe(3), two equivalent Fe(4), and four equivalent Fe(1) atoms to form a mixture of distorted edge, corner, and face-sharing FeLu2V2Fe8 cuboctahedra. In the third Fe site, Fe(3) is bonded to two equivalent Lu(1), two equivalent V(1), two equivalent Fe(2), two equivalent Fe(4), and four equivalent Fe(1) atoms to form a mixture of distorted edge, corner, and face-sharing FeLu2V2Fe8 cuboctahedra. In the fourth Fe site, Fe(4) is bonded in a 14-coordinate geometry to one Lu(1), four equivalent V(1), one Fe(4), two equivalent Fe(2), two equivalent Fe(3), and four equivalent Fe(1) atoms.
Lu(VFe5)2 crystallizes in the orthorhombic Immm space group. Lu(1) is bonded in a 20-coordinate geometry to two equivalent V(1), two equivalent Fe(4), four equivalent Fe(2), four equivalent Fe(3), and eight equivalent Fe(1) atoms. Both Lu(1)-V(1) bond lengths are 3.02 Å. Both Lu(1)-Fe(4) bond lengths are 3.00 Å. All Lu(1)-Fe(2) bond lengths are 2.99 Å. All Lu(1)-Fe(3) bond lengths are 3.01 Å. All Lu(1)-Fe(1) bond lengths are 3.20 Å. V(1) is bonded in a 14-coordinate geometry to one Lu(1), one V(1), two equivalent Fe(2), two equivalent Fe(3), four equivalent Fe(1), and four equivalent Fe(4) atoms. The V(1)-V(1) bond length is 2.40 Å. Both V(1)-Fe(2) bond lengths are 2.62 Å. Both V(1)-Fe(3) bond lengths are 2.60 Å. All V(1)-Fe(1) bond lengths are 2.57 Å. All V(1)-Fe(4) bond lengths are 2.89 Å. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Lu(1), two equivalent V(1), two equivalent Fe(1), two equivalent Fe(2), two equivalent Fe(3), and two equivalent Fe(4) atoms to form a mixture of distorted edge, corner, and face-sharing FeLu2V2Fe8 cuboctahedra. Both Fe(1)-Fe(1) bond lengths are 2.34 Å. Both Fe(1)-Fe(2) bond lengths are 2.43 Å. Both Fe(1)-Fe(3) bond lengths are 2.41 Å. Both Fe(1)-Fe(4) bond lengths are 2.58 Å. In the second Fe site, Fe(2) is bonded to two equivalent Lu(1), two equivalent V(1), two equivalent Fe(3), two equivalent Fe(4), and four equivalent Fe(1) atoms to form a mixture of distorted edge, corner, and face-sharing FeLu2V2Fe8 cuboctahedra. Both Fe(2)-Fe(3) bond lengths are 2.65 Å. Both Fe(2)-Fe(4) bond lengths are 2.61 Å. In the third Fe site, Fe(3) is bonded to two equivalent Lu(1), two equivalent V(1), two equivalent Fe(2), two equivalent Fe(4), and four equivalent Fe(1) atoms to form a mixture of distorted edge, corner, and face-sharing FeLu2V2Fe8 cuboctahedra. Both Fe(3)-Fe(4) bond lengths are 2.62 Å. In the fourth Fe site, Fe(4) is bonded in a 14-coordinate geometry to one Lu(1), four equivalent V(1), one Fe(4), two equivalent Fe(2), two equivalent Fe(3), and four equivalent Fe(1) atoms. The Fe(4)-Fe(4) bond length is 2.38 Å.