The structure described by CrCdO4 crystallizes in the monoclinic C2/m space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(3), one O(4), and two equivalent O(1) atoms to form CrO4 tetrahedra that share corners with two equivalent Cd(1)O6 octahedra and corners with four equivalent Cd(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 15-66°. In the second Cr site, Cr(2) is bonded to two equivalent O(2) and two equivalent O(5) atoms to form CrO4 tetrahedra that share corners with two equivalent Cd(2)O6 octahedra and corners with four equivalent Cd(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-54°. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to one O(3), one O(4), two equivalent O(2), and two equivalent O(5) atoms to form CdO6 octahedra that share corners with two equivalent Cr(1)O4 tetrahedra, corners with four equivalent Cr(2)O4 tetrahedra, and edges with two equivalent Cd(2)O6 octahedra. In the second Cd site, Cd(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form CdO6 octahedra that share corners with two equivalent Cr(2)O4 tetrahedra, corners with four equivalent Cr(1)O4 tetrahedra,  an edgeedge with one Cd(2)O6 octahedra, and edges with two equivalent Cd(1)O6 octahedra. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Cr(1) and one Cd(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Cr(2), one Cd(1), and one Cd(2) atom. In the third O site, O(3) is bonded to one Cr(1), one Cd(1), and two equivalent Cd(2) atoms to form distorted edge-sharing OCrCd3 tetrahedra. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Cr(1) and one Cd(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Cr(2) and one Cd(1) atom. is represented by the CIF card [CIF]
data_CrCdO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.134
_cell_length_b   7.134
_cell_length_c   7.096
_cell_angle_alpha   81.495
_cell_angle_beta   81.495
_cell_angle_gamma   85.963
_symmetry_Int_Tables_number   1
_cell_volume   352.808
_cell_formula_units_Z   4
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  0.726  0.726  0.418  1.0
  Cr  Cr1  1  0.274  0.274  0.582  1.0
  Cr  Cr2  1  0.745  0.255  0.000  1.0
  Cr  Cr3  1  0.255  0.745  0.000  1.0
  Cd  Cd4  1  0.211  0.211  0.126  1.0
  Cd  Cd5  1  0.789  0.789  0.874  1.0
  Cd  Cd6  1  0.813  0.187  0.500  1.0
  Cd  Cd7  1  0.187  0.813  0.500  1.0
  O  O8  1  0.220  0.497  0.520  1.0
  O  O9  1  0.503  0.780  0.480  1.0
  O  O10  1  0.780  0.503  0.480  1.0
  O  O11  1  0.497  0.220  0.520  1.0
  O  O12  1  0.114  0.797  0.828  1.0
  O  O13  1  0.203  0.886  0.172  1.0
  O  O14  1  0.886  0.203  0.172  1.0
  O  O15  1  0.797  0.114  0.828  1.0
  O  O16  1  0.855  0.855  0.539  1.0
  O  O17  1  0.145  0.145  0.461  1.0
  O  O18  1  0.215  0.215  0.812  1.0
  O  O19  1  0.785  0.785  0.188  1.0
  O  O20  1  0.472  0.775  0.900  1.0
  O  O21  1  0.225  0.528  0.100  1.0
  O  O22  1  0.528  0.225  0.100  1.0
  O  O23  1  0.775  0.472  0.900  1.0
[/CIF]
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The structure described by CrCdO4 crystallizes in the monoclinic C2/m space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(3), one O(4), and two equivalent O(1) atoms to form CrO4 tetrahedra that share corners with two equivalent Cd(1)O6 octahedra and corners with four equivalent Cd(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 15-66°. In the second Cr site, Cr(2) is bonded to two equivalent O(2) and two equivalent O(5) atoms to form CrO4 tetrahedra that share corners with two equivalent Cd(2)O6 octahedra and corners with four equivalent Cd(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 21-54°. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to one O(3), one O(4), two equivalent O(2), and two equivalent O(5) atoms to form CdO6 octahedra that share corners with two equivalent Cr(1)O4 tetrahedra, corners with four equivalent Cr(2)O4 tetrahedra, and edges with two equivalent Cd(2)O6 octahedra. In the second Cd site, Cd(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form CdO6 octahedra that share corners with two equivalent Cr(2)O4 tetrahedra, corners with four equivalent Cr(1)O4 tetrahedra,  an edgeedge with one Cd(2)O6 octahedra, and edges with two equivalent Cd(1)O6 octahedra. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Cr(1) and one Cd(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Cr(2), one Cd(1), and one Cd(2) atom. In the third O site, O(3) is bonded to one Cr(1), one Cd(1), and two equivalent Cd(2) atoms to form distorted edge-sharing OCrCd3 tetrahedra. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Cr(1) and one Cd(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Cr(2) and one Cd(1) atom. is represented by the CIF card [CIF]
data_CrCdO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.134
_cell_length_b   7.134
_cell_length_c   7.096
_cell_angle_alpha   81.495
_cell_angle_beta   81.495
_cell_angle_gamma   85.963
_symmetry_Int_Tables_number   1
_cell_volume   352.808
_cell_formula_units_Z   4
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  0.726  0.726  0.418  1.0
  Cr  Cr1  1  0.274  0.274  0.582  1.0
  Cr  Cr2  1  0.745  0.255  0.000  1.0
  Cr  Cr3  1  0.255  0.745  0.000  1.0
  Cd  Cd4  1  0.211  0.211  0.126  1.0
  Cd  Cd5  1  0.789  0.789  0.874  1.0
  Cd  Cd6  1  0.813  0.187  0.500  1.0
  Cd  Cd7  1  0.187  0.813  0.500  1.0
  O  O8  1  0.220  0.497  0.520  1.0
  O  O9  1  0.503  0.780  0.480  1.0
  O  O10  1  0.780  0.503  0.480  1.0
  O  O11  1  0.497  0.220  0.520  1.0
  O  O12  1  0.114  0.797  0.828  1.0
  O  O13  1  0.203  0.886  0.172  1.0
  O  O14  1  0.886  0.203  0.172  1.0
  O  O15  1  0.797  0.114  0.828  1.0
  O  O16  1  0.855  0.855  0.539  1.0
  O  O17  1  0.145  0.145  0.461  1.0
  O  O18  1  0.215  0.215  0.812  1.0
  O  O19  1  0.785  0.785  0.188  1.0
  O  O20  1  0.472  0.775  0.900  1.0
  O  O21  1  0.225  0.528  0.100  1.0
  O  O22  1  0.528  0.225  0.100  1.0
  O  O23  1  0.775  0.472  0.900  1.0
[/CIF]
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