The structure described by MgV2CdO6 crystallizes in the monoclinic Cm space group. Mg(1) is bonded to one O(2), one O(3), one O(5), and two equivalent O(4) atoms to form distorted MgO5 trigonal bipyramids that share  a cornercorner with one V(2)O5 trigonal bipyramid, corners with two equivalent Mg(1)O5 trigonal bipyramids, corners with two equivalent V(1)O5 trigonal bipyramids, and edges with two equivalent V(2)O5 trigonal bipyramids. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(3), one O(5), and two equivalent O(6) atoms to form distorted VO5 trigonal bipyramids that share corners with two equivalent Mg(1)O5 trigonal bipyramids, corners with two equivalent V(1)O5 trigonal bipyramids, and edges with two equivalent V(2)O5 trigonal bipyramids. In the second V site, V(2) is bonded to one O(2), one O(4), one O(6), and two equivalent O(5) atoms to form distorted VO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O5 trigonal bipyramid, corners with two equivalent V(2)O5 trigonal bipyramids, edges with two equivalent Mg(1)O5 trigonal bipyramids, and edges with two equivalent V(1)O5 trigonal bipyramids. Cd(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(4), one O(6), and two equivalent O(3) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one V(1) and one Cd(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mg(1), one V(2), and one Cd(1) atom. In the third O site, O(3) is bonded to one Mg(1), one V(1), and two equivalent Cd(1) atoms to form distorted corner-sharing OMgVCd2 tetrahedra. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Mg(1), one V(2), and one Cd(1) atom. In the fifth O site, O(5) is bonded in a distorted see-saw-like geometry to one Mg(1), one V(1), and two equivalent V(2) atoms. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one V(2), two equivalent V(1), and one Cd(1) atom. is represented by the CIF card [CIF]
data_MgV2CdO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.939
_cell_length_b   5.572
_cell_length_c   6.993
_cell_angle_alpha   83.794
_cell_angle_beta   90.002
_cell_angle_gamma   110.656
_symmetry_Int_Tables_number   1
_cell_volume   142.658
_cell_formula_units_Z   1
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
  Mg  Mg0  1  0.166  0.330  0.182  1.0
  V  V1  1  0.213  0.424  0.676  1.0
  V  V2  1  0.828  0.655  0.369  1.0
  Cd  Cd3  1  0.881  0.762  0.925  1.0
  O  O4  1  0.051  0.099  0.699  1.0
  O  O5  1  0.974  0.947  0.214  1.0
  O  O6  1  0.278  0.556  0.919  1.0
  O  O7  1  0.697  0.393  0.216  1.0
  O  O8  1  0.293  0.585  0.408  1.0
  O  O9  1  0.763  0.525  0.642  1.0
[/CIF]
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The structure described by MgV2CdO6 crystallizes in the monoclinic Cm space group. Mg(1) is bonded to one O(2), one O(3), one O(5), and two equivalent O(4) atoms to form distorted MgO5 trigonal bipyramids that share  a cornercorner with one V(2)O5 trigonal bipyramid, corners with two equivalent Mg(1)O5 trigonal bipyramids, corners with two equivalent V(1)O5 trigonal bipyramids, and edges with two equivalent V(2)O5 trigonal bipyramids. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(3), one O(5), and two equivalent O(6) atoms to form distorted VO5 trigonal bipyramids that share corners with two equivalent Mg(1)O5 trigonal bipyramids, corners with two equivalent V(1)O5 trigonal bipyramids, and edges with two equivalent V(2)O5 trigonal bipyramids. In the second V site, V(2) is bonded to one O(2), one O(4), one O(6), and two equivalent O(5) atoms to form distorted VO5 trigonal bipyramids that share  a cornercorner with one Mg(1)O5 trigonal bipyramid, corners with two equivalent V(2)O5 trigonal bipyramids, edges with two equivalent Mg(1)O5 trigonal bipyramids, and edges with two equivalent V(1)O5 trigonal bipyramids. Cd(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(4), one O(6), and two equivalent O(3) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one V(1) and one Cd(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mg(1), one V(2), and one Cd(1) atom. In the third O site, O(3) is bonded to one Mg(1), one V(1), and two equivalent Cd(1) atoms to form distorted corner-sharing OMgVCd2 tetrahedra. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Mg(1), one V(2), and one Cd(1) atom. In the fifth O site, O(5) is bonded in a distorted see-saw-like geometry to one Mg(1), one V(1), and two equivalent V(2) atoms. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one V(2), two equivalent V(1), and one Cd(1) atom. is represented by the CIF card [CIF]
data_MgV2CdO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.939
_cell_length_b   5.572
_cell_length_c   6.993
_cell_angle_alpha   83.794
_cell_angle_beta   90.002
_cell_angle_gamma   110.656
_symmetry_Int_Tables_number   1
_cell_volume   142.658
_cell_formula_units_Z   1
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
  Mg  Mg0  1  0.166  0.330  0.182  1.0
  V  V1  1  0.213  0.424  0.676  1.0
  V  V2  1  0.828  0.655  0.369  1.0
  Cd  Cd3  1  0.881  0.762  0.925  1.0
  O  O4  1  0.051  0.099  0.699  1.0
  O  O5  1  0.974  0.947  0.214  1.0
  O  O6  1  0.278  0.556  0.919  1.0
  O  O7  1  0.697  0.393  0.216  1.0
  O  O8  1  0.293  0.585  0.408  1.0
  O  O9  1  0.763  0.525  0.642  1.0
[/CIF]
.