Cr(FeTe2)2 crystallizes in the monoclinic P2/m space group. Cr(1) is bonded to two equivalent Te(1) and four equivalent Te(2) atoms to form CrTe6 octahedra that share corners with eight equivalent Fe(2)Te6 octahedra, edges with two equivalent Cr(1)Te6 octahedra, and edges with four equivalent Fe(1)Te6 octahedra. The corner-sharing octahedral tilt angles are 52°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Te(2) and four equivalent Te(1) atoms to form distorted FeTe6 octahedra that share corners with four equivalent Fe(2)Te6 octahedra, edges with two equivalent Fe(1)Te6 octahedra, edges with four equivalent Cr(1)Te6 octahedra, and faces with two equivalent Fe(2)Te6 octahedra. The corner-sharing octahedral tilt angles are 46°. In the second Fe site, Fe(2) is bonded to two equivalent Te(2) and four equivalent Te(1) atoms to form distorted FeTe6 octahedra that share corners with four equivalent Fe(1)Te6 octahedra, corners with eight equivalent Cr(1)Te6 octahedra, edges with two equivalent Fe(2)Te6 octahedra, and faces with two equivalent Fe(1)Te6 octahedra. The corner-sharing octahedral tilt angles range from 46-52°. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one Cr(1), two equivalent Fe(1), and two equivalent Fe(2) atoms to form a mixture of distorted corner and edge-sharing TeCrFe4 square pyramids. In the second Te site, Te(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Cr(1), one Fe(1), and one Fe(2) atom.
Cr(FeTe2)2 crystallizes in the monoclinic P2/m space group. Cr(1) is bonded to two equivalent Te(1) and four equivalent Te(2) atoms to form CrTe6 octahedra that share corners with eight equivalent Fe(2)Te6 octahedra, edges with two equivalent Cr(1)Te6 octahedra, and edges with four equivalent Fe(1)Te6 octahedra. The corner-sharing octahedral tilt angles are 52°. Both Cr(1)-Te(1) bond lengths are 2.70 Å. All Cr(1)-Te(2) bond lengths are 2.72 Å. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Te(2) and four equivalent Te(1) atoms to form distorted FeTe6 octahedra that share corners with four equivalent Fe(2)Te6 octahedra, edges with two equivalent Fe(1)Te6 octahedra, edges with four equivalent Cr(1)Te6 octahedra, and faces with two equivalent Fe(2)Te6 octahedra. The corner-sharing octahedral tilt angles are 46°. Both Fe(1)-Te(2) bond lengths are 2.72 Å. All Fe(1)-Te(1) bond lengths are 2.69 Å. In the second Fe site, Fe(2) is bonded to two equivalent Te(2) and four equivalent Te(1) atoms to form distorted FeTe6 octahedra that share corners with four equivalent Fe(1)Te6 octahedra, corners with eight equivalent Cr(1)Te6 octahedra, edges with two equivalent Fe(2)Te6 octahedra, and faces with two equivalent Fe(1)Te6 octahedra. The corner-sharing octahedral tilt angles range from 46-52°. Both Fe(2)-Te(2) bond lengths are 2.65 Å. All Fe(2)-Te(1) bond lengths are 2.64 Å. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one Cr(1), two equivalent Fe(1), and two equivalent Fe(2) atoms to form a mixture of distorted corner and edge-sharing TeCrFe4 square pyramids. In the second Te site, Te(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Cr(1), one Fe(1), and one Fe(2) atom.