The material described by Cr6Cd(CuO6)2 is Spinel-derived structured and crystallizes in the tetragonal I-4 space group. There are three inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(4), two equivalent O(5), and three equivalent O(2) atoms to form CrO6 octahedra that share  a cornercorner with one Cu(2)O4 tetrahedra, corners with two equivalent Cu(3)O4 tetrahedra, corners with three equivalent Cd(1)O4 tetrahedra, edges with two equivalent Cr(3)O6 octahedra, and edges with four equivalent Cr(1)O6 octahedra. In the second Cr site, Cr(2) is bonded to one O(1), two equivalent O(3), and three equivalent O(6) atoms to form CrO6 octahedra that share  a cornercorner with one Cd(1)O4 tetrahedra, corners with two equivalent Cu(1)O4 tetrahedra, corners with three equivalent Cu(2)O4 tetrahedra, edges with two equivalent Cr(3)O6 octahedra, and edges with four equivalent Cr(2)O6 octahedra. In the third Cr site, Cr(3) is bonded to one O(3), one O(5), two equivalent O(1), and two equivalent O(4) atoms to form CrO6 octahedra that share  a cornercorner with one Cu(1)O4 tetrahedra,  a cornercorner with one Cu(3)O4 tetrahedra, corners with two equivalent Cu(2)O4 tetrahedra, corners with two equivalent Cd(1)O4 tetrahedra, edges with two equivalent Cr(1)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, and edges with two equivalent Cr(3)O6 octahedra. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to four equivalent O(3) atoms to form CuO4 tetrahedra that share corners with four equivalent Cr(3)O6 octahedra and corners with eight equivalent Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-63°. In the second Cu site, Cu(2) is bonded to two equivalent O(4) and two equivalent O(6) atoms to form CuO4 tetrahedra that share corners with two equivalent Cr(1)O6 octahedra, corners with four equivalent Cr(3)O6 octahedra, and corners with six equivalent Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-64°. In the third Cu site, Cu(3) is bonded to four equivalent O(5) atoms to form CuO4 tetrahedra that share corners with four equivalent Cr(3)O6 octahedra and corners with eight equivalent Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-59°. Cd(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form CdO4 tetrahedra that share corners with two equivalent Cr(2)O6 octahedra, corners with four equivalent Cr(3)O6 octahedra, and corners with six equivalent Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 60-63°. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Cr(2), two equivalent Cr(3), and one Cd(1) atom to form OCr3Cd tetrahedra that share  a cornercorner with one O(1)Cr3Cd tetrahedra, corners with two equivalent O(2)Cr3Cd tetrahedra, corners with two equivalent O(5)Cr3Cu trigonal pyramids, corners with four equivalent O(4)Cr3Cu trigonal pyramids, and  an edgeedge with one O(1)Cr3Cd tetrahedra. In the second O site, O(2) is bonded to three equivalent Cr(1) and one Cd(1) atom to form OCr3Cd tetrahedra that share  a cornercorner with one O(2)Cr3Cd tetrahedra, corners with two equivalent O(1)Cr3Cd tetrahedra, corners with three equivalent O(4)Cr3Cu trigonal pyramids, corners with six equivalent O(5)Cr3Cu trigonal pyramids, and edges with three equivalent O(2)Cr3Cd tetrahedra. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Cr(3), two equivalent Cr(2), and one Cu(1) atom. In the fourth O site, O(4) is bonded to one Cr(1), two equivalent Cr(3), and one Cu(2) atom to form distorted OCr3Cu trigonal pyramids that share corners with three equivalent O(2)Cr3Cd tetrahedra, corners with four equivalent O(1)Cr3Cd tetrahedra,  a cornercorner with one O(4)Cr3Cu trigonal pyramid,  an edgeedge with one O(4)Cr3Cu trigonal pyramid, and edges with two equivalent O(5)Cr3Cu trigonal pyramids. In the fifth O site, O(5) is bonded to one Cr(3), two equivalent Cr(1), and one Cu(3) atom to form distorted OCr3Cu trigonal pyramids that share corners with two equivalent O(1)Cr3Cd tetrahedra, corners with six equivalent O(2)Cr3Cd tetrahedra, corners with three equivalent O(5)Cr3Cu trigonal pyramids,  an edgeedge with one O(5)Cr3Cu trigonal pyramid, and edges with two equivalent O(4)Cr3Cu trigonal pyramids. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to three equivalent Cr(2) and one Cu(2) atom. is represented by the CIF file [CIF]
data_Cr6Cd(CuO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.111
_cell_length_b   13.384
_cell_length_c   6.111
_cell_angle_alpha   76.803
_cell_angle_beta   90.000
_cell_angle_gamma   76.803
_symmetry_Int_Tables_number   1
_cell_volume   473.117
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Cr  Cr0  1  0.790  0.418  0.541  1.0
  Cr  Cr1  1  0.122  0.754  0.876  1.0
  Cr  Cr2  1  0.460  0.079  0.207  1.0
  Cr  Cr3  1  0.462  0.079  0.714  1.0
  Cr  Cr4  1  0.792  0.418  0.042  1.0
  Cr  Cr5  1  0.124  0.754  0.370  1.0
  Cr  Cr6  1  0.126  0.249  0.875  1.0
  Cr  Cr7  1  0.459  0.588  0.205  1.0
  Cr  Cr8  1  0.790  0.912  0.543  1.0
  Cr  Cr9  1  0.297  0.912  0.545  1.0
  Cr  Cr10  1  0.625  0.249  0.876  1.0
  Cr  Cr11  1  0.953  0.588  0.207  1.0
  Cd  Cd12  1  0.919  0.163  0.419  1.0
  Cd  Cd13  1  0.248  0.504  0.748  1.0
  Cu  Cu14  1  0.583  0.833  0.083  1.0
  Cu  Cu15  1  0.001  0.997  0.001  1.0
  Cu  Cu16  1  0.333  0.333  0.333  1.0
  Cu  Cu17  1  0.665  0.670  0.665  1.0
  O  O18  1  0.257  0.068  0.467  1.0
  O  O19  1  0.584  0.406  0.798  1.0
  O  O20  1  0.903  0.749  0.127  1.0
  O  O21  1  0.235  0.087  0.955  1.0
  O  O22  1  0.564  0.426  0.286  1.0
  O  O23  1  0.905  0.754  0.622  1.0
  O  O24  1  0.010  0.406  0.796  1.0
  O  O25  1  0.348  0.749  0.125  1.0
  O  O26  1  0.675  0.068  0.465  1.0
  O  O27  1  0.678  0.087  0.958  1.0
  O  O28  1  0.010  0.426  0.288  1.0
  O  O29  1  0.341  0.754  0.624  1.0
  O  O30  1  0.869  0.260  0.657  1.0
  O  O31  1  0.200  0.599  0.992  1.0
  O  O32  1  0.540  0.918  0.318  1.0
  O  O33  1  0.378  0.241  0.103  1.0
  O  O34  1  0.709  0.579  0.432  1.0
  O  O35  1  0.043  0.913  0.762  1.0
  O  O36  1  0.542  0.918  0.764  1.0
  O  O37  1  0.871  0.260  0.083  1.0
  O  O38  1  0.202  0.599  0.410  1.0
  O  O39  1  0.381  0.241  0.656  1.0
  O  O40  1  0.711  0.579  0.989  1.0
  O  O41  1  0.045  0.913  0.325  1.0
[/CIF]
.
The material described by Cr6Cd(CuO6)2 is Spinel-derived structured and crystallizes in the tetragonal I-4 space group. There are three inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(4), two equivalent O(5), and three equivalent O(2) atoms to form CrO6 octahedra that share  a cornercorner with one Cu(2)O4 tetrahedra, corners with two equivalent Cu(3)O4 tetrahedra, corners with three equivalent Cd(1)O4 tetrahedra, edges with two equivalent Cr(3)O6 octahedra, and edges with four equivalent Cr(1)O6 octahedra. In the second Cr site, Cr(2) is bonded to one O(1), two equivalent O(3), and three equivalent O(6) atoms to form CrO6 octahedra that share  a cornercorner with one Cd(1)O4 tetrahedra, corners with two equivalent Cu(1)O4 tetrahedra, corners with three equivalent Cu(2)O4 tetrahedra, edges with two equivalent Cr(3)O6 octahedra, and edges with four equivalent Cr(2)O6 octahedra. In the third Cr site, Cr(3) is bonded to one O(3), one O(5), two equivalent O(1), and two equivalent O(4) atoms to form CrO6 octahedra that share  a cornercorner with one Cu(1)O4 tetrahedra,  a cornercorner with one Cu(3)O4 tetrahedra, corners with two equivalent Cu(2)O4 tetrahedra, corners with two equivalent Cd(1)O4 tetrahedra, edges with two equivalent Cr(1)O6 octahedra, edges with two equivalent Cr(2)O6 octahedra, and edges with two equivalent Cr(3)O6 octahedra. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to four equivalent O(3) atoms to form CuO4 tetrahedra that share corners with four equivalent Cr(3)O6 octahedra and corners with eight equivalent Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-63°. In the second Cu site, Cu(2) is bonded to two equivalent O(4) and two equivalent O(6) atoms to form CuO4 tetrahedra that share corners with two equivalent Cr(1)O6 octahedra, corners with four equivalent Cr(3)O6 octahedra, and corners with six equivalent Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 56-64°. In the third Cu site, Cu(3) is bonded to four equivalent O(5) atoms to form CuO4 tetrahedra that share corners with four equivalent Cr(3)O6 octahedra and corners with eight equivalent Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 58-59°. Cd(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form CdO4 tetrahedra that share corners with two equivalent Cr(2)O6 octahedra, corners with four equivalent Cr(3)O6 octahedra, and corners with six equivalent Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 60-63°. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Cr(2), two equivalent Cr(3), and one Cd(1) atom to form OCr3Cd tetrahedra that share  a cornercorner with one O(1)Cr3Cd tetrahedra, corners with two equivalent O(2)Cr3Cd tetrahedra, corners with two equivalent O(5)Cr3Cu trigonal pyramids, corners with four equivalent O(4)Cr3Cu trigonal pyramids, and  an edgeedge with one O(1)Cr3Cd tetrahedra. In the second O site, O(2) is bonded to three equivalent Cr(1) and one Cd(1) atom to form OCr3Cd tetrahedra that share  a cornercorner with one O(2)Cr3Cd tetrahedra, corners with two equivalent O(1)Cr3Cd tetrahedra, corners with three equivalent O(4)Cr3Cu trigonal pyramids, corners with six equivalent O(5)Cr3Cu trigonal pyramids, and edges with three equivalent O(2)Cr3Cd tetrahedra. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Cr(3), two equivalent Cr(2), and one Cu(1) atom. In the fourth O site, O(4) is bonded to one Cr(1), two equivalent Cr(3), and one Cu(2) atom to form distorted OCr3Cu trigonal pyramids that share corners with three equivalent O(2)Cr3Cd tetrahedra, corners with four equivalent O(1)Cr3Cd tetrahedra,  a cornercorner with one O(4)Cr3Cu trigonal pyramid,  an edgeedge with one O(4)Cr3Cu trigonal pyramid, and edges with two equivalent O(5)Cr3Cu trigonal pyramids. In the fifth O site, O(5) is bonded to one Cr(3), two equivalent Cr(1), and one Cu(3) atom to form distorted OCr3Cu trigonal pyramids that share corners with two equivalent O(1)Cr3Cd tetrahedra, corners with six equivalent O(2)Cr3Cd tetrahedra, corners with three equivalent O(5)Cr3Cu trigonal pyramids,  an edgeedge with one O(5)Cr3Cu trigonal pyramid, and edges with two equivalent O(4)Cr3Cu trigonal pyramids. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to three equivalent Cr(2) and one Cu(2) atom. is represented by the CIF file [CIF]
data_Cr6Cd(CuO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.111
_cell_length_b   13.384
_cell_length_c   6.111
_cell_angle_alpha   76.803
_cell_angle_beta   90.000
_cell_angle_gamma   76.803
_symmetry_Int_Tables_number   1
_cell_volume   473.117
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Cr  Cr0  1  0.790  0.418  0.541  1.0
  Cr  Cr1  1  0.122  0.754  0.876  1.0
  Cr  Cr2  1  0.460  0.079  0.207  1.0
  Cr  Cr3  1  0.462  0.079  0.714  1.0
  Cr  Cr4  1  0.792  0.418  0.042  1.0
  Cr  Cr5  1  0.124  0.754  0.370  1.0
  Cr  Cr6  1  0.126  0.249  0.875  1.0
  Cr  Cr7  1  0.459  0.588  0.205  1.0
  Cr  Cr8  1  0.790  0.912  0.543  1.0
  Cr  Cr9  1  0.297  0.912  0.545  1.0
  Cr  Cr10  1  0.625  0.249  0.876  1.0
  Cr  Cr11  1  0.953  0.588  0.207  1.0
  Cd  Cd12  1  0.919  0.163  0.419  1.0
  Cd  Cd13  1  0.248  0.504  0.748  1.0
  Cu  Cu14  1  0.583  0.833  0.083  1.0
  Cu  Cu15  1  0.001  0.997  0.001  1.0
  Cu  Cu16  1  0.333  0.333  0.333  1.0
  Cu  Cu17  1  0.665  0.670  0.665  1.0
  O  O18  1  0.257  0.068  0.467  1.0
  O  O19  1  0.584  0.406  0.798  1.0
  O  O20  1  0.903  0.749  0.127  1.0
  O  O21  1  0.235  0.087  0.955  1.0
  O  O22  1  0.564  0.426  0.286  1.0
  O  O23  1  0.905  0.754  0.622  1.0
  O  O24  1  0.010  0.406  0.796  1.0
  O  O25  1  0.348  0.749  0.125  1.0
  O  O26  1  0.675  0.068  0.465  1.0
  O  O27  1  0.678  0.087  0.958  1.0
  O  O28  1  0.010  0.426  0.288  1.0
  O  O29  1  0.341  0.754  0.624  1.0
  O  O30  1  0.869  0.260  0.657  1.0
  O  O31  1  0.200  0.599  0.992  1.0
  O  O32  1  0.540  0.918  0.318  1.0
  O  O33  1  0.378  0.241  0.103  1.0
  O  O34  1  0.709  0.579  0.432  1.0
  O  O35  1  0.043  0.913  0.762  1.0
  O  O36  1  0.542  0.918  0.764  1.0
  O  O37  1  0.871  0.260  0.083  1.0
  O  O38  1  0.202  0.599  0.410  1.0
  O  O39  1  0.381  0.241  0.656  1.0
  O  O40  1  0.711  0.579  0.989  1.0
  O  O41  1  0.045  0.913  0.325  1.0
[/CIF]
.