The crystal structure described by MgMn4Cd2O8 is Aluminum carbonitride-derived structured and crystallizes in the monoclinic C2 space group. Mg(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form distorted MgO4 tetrahedra that share corners with six equivalent Mn(2)O6 octahedra and corners with two equivalent Cd(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 28-61°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 5-coordinate geometry to one O(2), two equivalent O(1), and two equivalent O(4) atoms. In the second Mn site, Mn(2) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form distorted MnO6 octahedra that share corners with three equivalent Mg(1)O4 tetrahedra, corners with three equivalent Cd(1)O4 tetrahedra, and edges with two equivalent Mn(2)O6 octahedra. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to two equivalent O(2) and two equivalent O(4) atoms to form CdO4 tetrahedra that share corners with six equivalent Mn(2)O6 octahedra and corners with two equivalent Mg(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-78°. In the second Cd site, Cd(2) is bonded in a 4-coordinate geometry to two equivalent O(1) and two equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Mn(2), two equivalent Mn(1), and one Cd(2) atom to form distorted OMn3Cd tetrahedra that share  a cornercorner with one O(1)Mn3Cd tetrahedra, corners with five equivalent O(4)MgMn3Cd trigonal bipyramids, and  an edgeedge with one O(1)Mn3Cd tetrahedra. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mn(1), two equivalent Mn(2), and one Cd(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Mg(1), two equivalent Mn(2), and one Cd(2) atom. In the fourth O site, O(4) is bonded to one Mg(1), one Mn(2), two equivalent Mn(1), and one Cd(1) atom to form distorted OMgMn3Cd trigonal bipyramids that share corners with five equivalent O(1)Mn3Cd tetrahedra,  a cornercorner with one O(4)MgMn3Cd trigonal bipyramid, and  a faceface with one O(4)MgMn3Cd trigonal bipyramid. is represented by the CIF card [CIF]
data_MgMn4Cd2O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.353
_cell_length_b   6.353
_cell_length_c   6.373
_cell_angle_alpha   117.260
_cell_angle_beta   117.260
_cell_angle_gamma   91.363
_symmetry_Int_Tables_number   1
_cell_volume   194.158
_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  0.159  0.841  0.750  1.0
  Mn  Mn1  1  0.945  0.052  0.470  1.0
  Mn  Mn2  1  0.948  0.055  0.030  1.0
  Mn  Mn3  1  0.017  0.511  0.012  1.0
  Mn  Mn4  1  0.489  0.983  0.488  1.0
  Cd  Cd5  1  0.581  0.419  0.250  1.0
  Cd  Cd6  1  0.466  0.534  0.750  1.0
  O  O7  1  0.839  0.766  0.059  1.0
  O  O8  1  0.696  0.238  0.502  1.0
  O  O9  1  0.251  0.703  0.989  1.0
  O  O10  1  0.180  0.219  0.942  1.0
  O  O11  1  0.297  0.749  0.511  1.0
  O  O12  1  0.234  0.161  0.441  1.0
  O  O13  1  0.781  0.820  0.558  1.0
  O  O14  1  0.762  0.304  0.998  1.0
[/CIF]
.
The crystal structure described by MgMn4Cd2O8 is Aluminum carbonitride-derived structured and crystallizes in the monoclinic C2 space group. Mg(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form distorted MgO4 tetrahedra that share corners with six equivalent Mn(2)O6 octahedra and corners with two equivalent Cd(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 28-61°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 5-coordinate geometry to one O(2), two equivalent O(1), and two equivalent O(4) atoms. In the second Mn site, Mn(2) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form distorted MnO6 octahedra that share corners with three equivalent Mg(1)O4 tetrahedra, corners with three equivalent Cd(1)O4 tetrahedra, and edges with two equivalent Mn(2)O6 octahedra. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to two equivalent O(2) and two equivalent O(4) atoms to form CdO4 tetrahedra that share corners with six equivalent Mn(2)O6 octahedra and corners with two equivalent Mg(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-78°. In the second Cd site, Cd(2) is bonded in a 4-coordinate geometry to two equivalent O(1) and two equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Mn(2), two equivalent Mn(1), and one Cd(2) atom to form distorted OMn3Cd tetrahedra that share  a cornercorner with one O(1)Mn3Cd tetrahedra, corners with five equivalent O(4)MgMn3Cd trigonal bipyramids, and  an edgeedge with one O(1)Mn3Cd tetrahedra. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mn(1), two equivalent Mn(2), and one Cd(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Mg(1), two equivalent Mn(2), and one Cd(2) atom. In the fourth O site, O(4) is bonded to one Mg(1), one Mn(2), two equivalent Mn(1), and one Cd(1) atom to form distorted OMgMn3Cd trigonal bipyramids that share corners with five equivalent O(1)Mn3Cd tetrahedra,  a cornercorner with one O(4)MgMn3Cd trigonal bipyramid, and  a faceface with one O(4)MgMn3Cd trigonal bipyramid. is represented by the CIF card [CIF]
data_MgMn4Cd2O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.353
_cell_length_b   6.353
_cell_length_c   6.373
_cell_angle_alpha   117.260
_cell_angle_beta   117.260
_cell_angle_gamma   91.363
_symmetry_Int_Tables_number   1
_cell_volume   194.158
_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  0.159  0.841  0.750  1.0
  Mn  Mn1  1  0.945  0.052  0.470  1.0
  Mn  Mn2  1  0.948  0.055  0.030  1.0
  Mn  Mn3  1  0.017  0.511  0.012  1.0
  Mn  Mn4  1  0.489  0.983  0.488  1.0
  Cd  Cd5  1  0.581  0.419  0.250  1.0
  Cd  Cd6  1  0.466  0.534  0.750  1.0
  O  O7  1  0.839  0.766  0.059  1.0
  O  O8  1  0.696  0.238  0.502  1.0
  O  O9  1  0.251  0.703  0.989  1.0
  O  O10  1  0.180  0.219  0.942  1.0
  O  O11  1  0.297  0.749  0.511  1.0
  O  O12  1  0.234  0.161  0.441  1.0
  O  O13  1  0.781  0.820  0.558  1.0
  O  O14  1  0.762  0.304  0.998  1.0
[/CIF]
.