The structure described by MgZn2(FeO2)4 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form MgO6 octahedra that share corners with six equivalent Zn(1)O6 octahedra, edges with two equivalent Zn(2)O6 octahedra, and edges with four equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-4°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), and two equivalent O(1) atoms. In the second Fe site, Fe(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form FeO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with two equivalent Zn(1)O6 octahedra, and edges with two equivalent Zn(2)O6 octahedra. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form ZnO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra, edges with two equivalent Zn(2)O6 octahedra, and edges with four equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-4°. In the second Zn site, Zn(2) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form ZnO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Zn(1)O6 octahedra, and edges with four equivalent Fe(2)O6 octahedra. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Fe(1), one Fe(2), one Zn(1), and one Zn(2) atom to form OMgZn2Fe2 trigonal bipyramids that share  a cornercorner with one O(2)MgZnFe3 trigonal bipyramid, corners with five equivalent O(1)MgZn2Fe2 trigonal bipyramids, corners with three equivalent O(3)ZnFe3 trigonal pyramids, edges with three equivalent O(1)MgZn2Fe2 trigonal bipyramids, edges with three equivalent O(2)MgZnFe3 trigonal bipyramids, and  an edgeedge with one O(3)ZnFe3 trigonal pyramid. In the second O site, O(2) is bonded to one Mg(1), one Fe(1), two equivalent Fe(2), and one Zn(1) atom to form distorted OMgZnFe3 trigonal bipyramids that share corners with two equivalent O(1)MgZn2Fe2 trigonal bipyramids, corners with four equivalent O(2)MgZnFe3 trigonal bipyramids, corners with three equivalent O(3)ZnFe3 trigonal pyramids, edges with six equivalent O(1)MgZn2Fe2 trigonal bipyramids, and  an edgeedge with one O(3)ZnFe3 trigonal pyramid. In the third O site, O(3) is bonded to one Fe(1), two equivalent Fe(2), and one Zn(2) atom to form OZnFe3 trigonal pyramids that share corners with three equivalent O(2)MgZnFe3 trigonal bipyramids, corners with six equivalent O(1)MgZn2Fe2 trigonal bipyramids, corners with three equivalent O(3)ZnFe3 trigonal pyramids,  an edgeedge with one O(2)MgZnFe3 trigonal bipyramid, and edges with two equivalent O(1)MgZn2Fe2 trigonal bipyramids. is represented by the CIF card [CIF]
data_MgZn2(FeO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.195
_cell_length_b   5.926
_cell_length_c   6.068
_cell_angle_alpha   59.207
_cell_angle_beta   60.675
_cell_angle_gamma   66.709
_symmetry_Int_Tables_number   1
_cell_volume   163.688
_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  0.625  0.125  0.125  1.0
  Zn  Zn1  1  0.125  0.625  0.625  1.0
  Zn  Zn2  1  0.625  0.125  0.625  1.0
  Fe  Fe3  1  0.092  0.980  0.964  1.0
  Fe  Fe4  1  0.158  0.270  0.286  1.0
  Fe  Fe5  1  0.625  0.625  0.125  1.0
  Fe  Fe6  1  0.625  0.625  0.625  1.0
  O  O7  1  0.399  0.359  0.367  1.0
  O  O8  1  0.399  0.359  0.875  1.0
  O  O9  1  0.375  0.870  0.377  1.0
  O  O10  1  0.806  0.440  0.377  1.0
  O  O11  1  0.444  0.810  0.873  1.0
  O  O12  1  0.875  0.380  0.873  1.0
  O  O13  1  0.851  0.891  0.375  1.0
  O  O14  1  0.851  0.891  0.883  1.0
[/CIF]
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The structure described by MgZn2(FeO2)4 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form MgO6 octahedra that share corners with six equivalent Zn(1)O6 octahedra, edges with two equivalent Zn(2)O6 octahedra, and edges with four equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-4°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), and two equivalent O(1) atoms. In the second Fe site, Fe(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form FeO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with two equivalent Zn(1)O6 octahedra, and edges with two equivalent Zn(2)O6 octahedra. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form ZnO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra, edges with two equivalent Zn(2)O6 octahedra, and edges with four equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-4°. In the second Zn site, Zn(2) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form ZnO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Zn(1)O6 octahedra, and edges with four equivalent Fe(2)O6 octahedra. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Fe(1), one Fe(2), one Zn(1), and one Zn(2) atom to form OMgZn2Fe2 trigonal bipyramids that share  a cornercorner with one O(2)MgZnFe3 trigonal bipyramid, corners with five equivalent O(1)MgZn2Fe2 trigonal bipyramids, corners with three equivalent O(3)ZnFe3 trigonal pyramids, edges with three equivalent O(1)MgZn2Fe2 trigonal bipyramids, edges with three equivalent O(2)MgZnFe3 trigonal bipyramids, and  an edgeedge with one O(3)ZnFe3 trigonal pyramid. In the second O site, O(2) is bonded to one Mg(1), one Fe(1), two equivalent Fe(2), and one Zn(1) atom to form distorted OMgZnFe3 trigonal bipyramids that share corners with two equivalent O(1)MgZn2Fe2 trigonal bipyramids, corners with four equivalent O(2)MgZnFe3 trigonal bipyramids, corners with three equivalent O(3)ZnFe3 trigonal pyramids, edges with six equivalent O(1)MgZn2Fe2 trigonal bipyramids, and  an edgeedge with one O(3)ZnFe3 trigonal pyramid. In the third O site, O(3) is bonded to one Fe(1), two equivalent Fe(2), and one Zn(2) atom to form OZnFe3 trigonal pyramids that share corners with three equivalent O(2)MgZnFe3 trigonal bipyramids, corners with six equivalent O(1)MgZn2Fe2 trigonal bipyramids, corners with three equivalent O(3)ZnFe3 trigonal pyramids,  an edgeedge with one O(2)MgZnFe3 trigonal bipyramid, and edges with two equivalent O(1)MgZn2Fe2 trigonal bipyramids. is represented by the CIF card [CIF]
data_MgZn2(FeO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.195
_cell_length_b   5.926
_cell_length_c   6.068
_cell_angle_alpha   59.207
_cell_angle_beta   60.675
_cell_angle_gamma   66.709
_symmetry_Int_Tables_number   1
_cell_volume   163.688
_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  0.625  0.125  0.125  1.0
  Zn  Zn1  1  0.125  0.625  0.625  1.0
  Zn  Zn2  1  0.625  0.125  0.625  1.0
  Fe  Fe3  1  0.092  0.980  0.964  1.0
  Fe  Fe4  1  0.158  0.270  0.286  1.0
  Fe  Fe5  1  0.625  0.625  0.125  1.0
  Fe  Fe6  1  0.625  0.625  0.625  1.0
  O  O7  1  0.399  0.359  0.367  1.0
  O  O8  1  0.399  0.359  0.875  1.0
  O  O9  1  0.375  0.870  0.377  1.0
  O  O10  1  0.806  0.440  0.377  1.0
  O  O11  1  0.444  0.810  0.873  1.0
  O  O12  1  0.875  0.380  0.873  1.0
  O  O13  1  0.851  0.891  0.375  1.0
  O  O14  1  0.851  0.891  0.883  1.0
[/CIF]
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