Gd(CrFe5)2 crystallizes in the monoclinic C2/m space group. Gd(1) is bonded in a 20-coordinate geometry to two equivalent Cr(1), two equivalent Fe(5), four equivalent Fe(1), four equivalent Fe(2), four equivalent Fe(3), and four equivalent Fe(4) atoms. Cr(1) is bonded in a 14-coordinate geometry to one Gd(1), one Cr(1), two equivalent Fe(1), two equivalent Fe(2), two equivalent Fe(3), two equivalent Fe(4), and four equivalent Fe(5) atoms. There are five inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 12-coordinate geometry to two equivalent Gd(1), two equivalent Cr(1), two equivalent Fe(2), two equivalent Fe(3), two equivalent Fe(4), and two equivalent Fe(5) atoms. In the second Fe site, Fe(2) is bonded in a 12-coordinate geometry to two equivalent Gd(1), two equivalent Cr(1), two equivalent Fe(1), two equivalent Fe(3), two equivalent Fe(4), and two equivalent Fe(5) atoms. In the third Fe site, Fe(3) is bonded to two equivalent Gd(1), two equivalent Cr(1), two equivalent Fe(1), two equivalent Fe(2), two equivalent Fe(3), and two equivalent Fe(5) atoms to form a mixture of distorted edge, face, and corner-sharing FeGd2Cr2Fe8 cuboctahedra. In the fourth Fe site, Fe(4) is bonded to two equivalent Gd(1), two equivalent Cr(1), two equivalent Fe(1), two equivalent Fe(2), two equivalent Fe(4), and two equivalent Fe(5) atoms to form a mixture of edge, face, and corner-sharing FeGd2Cr2Fe8 cuboctahedra. In the fifth Fe site, Fe(5) is bonded in a 14-coordinate geometry to one Gd(1), four equivalent Cr(1), one Fe(5), two equivalent Fe(1), two equivalent Fe(2), two equivalent Fe(3), and two equivalent Fe(4) atoms.
Gd(CrFe5)2 crystallizes in the monoclinic C2/m space group. Gd(1) is bonded in a 20-coordinate geometry to two equivalent Cr(1), two equivalent Fe(5), four equivalent Fe(1), four equivalent Fe(2), four equivalent Fe(3), and four equivalent Fe(4) atoms. Both Gd(1)-Cr(1) bond lengths are 3.10 Å. Both Gd(1)-Fe(5) bond lengths are 3.02 Å. All Gd(1)-Fe(1) bond lengths are 3.02 Å. All Gd(1)-Fe(2) bond lengths are 3.04 Å. All Gd(1)-Fe(3) bond lengths are 3.21 Å. All Gd(1)-Fe(4) bond lengths are 3.20 Å. Cr(1) is bonded in a 14-coordinate geometry to one Gd(1), one Cr(1), two equivalent Fe(1), two equivalent Fe(2), two equivalent Fe(3), two equivalent Fe(4), and four equivalent Fe(5) atoms. The Cr(1)-Cr(1) bond length is 2.25 Å. Both Cr(1)-Fe(1) bond lengths are 2.57 Å. Both Cr(1)-Fe(2) bond lengths are 2.62 Å. Both Cr(1)-Fe(3) bond lengths are 2.60 Å. Both Cr(1)-Fe(4) bond lengths are 2.61 Å. All Cr(1)-Fe(5) bond lengths are 2.86 Å. There are five inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 12-coordinate geometry to two equivalent Gd(1), two equivalent Cr(1), two equivalent Fe(2), two equivalent Fe(3), two equivalent Fe(4), and two equivalent Fe(5) atoms. There is one shorter (2.71 Å) and one longer (2.72 Å) Fe(1)-Fe(2) bond length. Both Fe(1)-Fe(3) bond lengths are 2.42 Å. Both Fe(1)-Fe(4) bond lengths are 2.42 Å. Both Fe(1)-Fe(5) bond lengths are 2.60 Å. In the second Fe site, Fe(2) is bonded in a 12-coordinate geometry to two equivalent Gd(1), two equivalent Cr(1), two equivalent Fe(1), two equivalent Fe(3), two equivalent Fe(4), and two equivalent Fe(5) atoms. Both Fe(2)-Fe(3) bond lengths are 2.42 Å. Both Fe(2)-Fe(4) bond lengths are 2.42 Å. There is one shorter (2.58 Å) and one longer (2.59 Å) Fe(2)-Fe(5) bond length. In the third Fe site, Fe(3) is bonded to two equivalent Gd(1), two equivalent Cr(1), two equivalent Fe(1), two equivalent Fe(2), two equivalent Fe(3), and two equivalent Fe(5) atoms to form a mixture of distorted edge, face, and corner-sharing FeGd2Cr2Fe8 cuboctahedra. Both Fe(3)-Fe(3) bond lengths are 2.34 Å. Both Fe(3)-Fe(5) bond lengths are 2.58 Å. In the fourth Fe site, Fe(4) is bonded to two equivalent Gd(1), two equivalent Cr(1), two equivalent Fe(1), two equivalent Fe(2), two equivalent Fe(4), and two equivalent Fe(5) atoms to form a mixture of edge, face, and corner-sharing FeGd2Cr2Fe8 cuboctahedra. Both Fe(4)-Fe(4) bond lengths are 2.34 Å. Both Fe(4)-Fe(5) bond lengths are 2.58 Å. In the fifth Fe site, Fe(5) is bonded in a 14-coordinate geometry to one Gd(1), four equivalent Cr(1), one Fe(5), two equivalent Fe(1), two equivalent Fe(2), two equivalent Fe(3), and two equivalent Fe(4) atoms. The Fe(5)-Fe(5) bond length is 2.39 Å.