The compound described by MgZn2(FeO2)4 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form MgO6 octahedra that share corners with six equivalent Fe(2)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and edges with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-4°. There are three inequivalent Fe sites. In the first Fe site, Fe(1) 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(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and edges with two equivalent Fe(3)O6 octahedra. In the second Fe site, Fe(2) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form FeO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and edges with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-4°. In the third Fe site, Fe(3) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form FeO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and edges with four equivalent Fe(1)O6 octahedra. Zn(1) is bonded in a 4-coordinate geometry to one O(2), one O(3), and two equivalent O(1) atoms. 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 Fe(3), and one Zn(1) atom to form OMgZnFe3 square pyramids that share  a cornercorner with one O(3)MgZnFe3 square pyramid, corners with five equivalent O(1)MgZnFe3 square pyramids, corners with three equivalent O(2)ZnFe3 tetrahedra, edges with three equivalent O(1)MgZnFe3 square pyramids, edges with three equivalent O(3)MgZnFe3 square pyramids, and  an edgeedge with one O(2)ZnFe3 tetrahedra. In the second O site, O(2) is bonded to one Fe(3), two equivalent Fe(1), and one Zn(1) atom to form distorted OZnFe3 tetrahedra that share corners with three equivalent O(3)MgZnFe3 square pyramids, corners with six equivalent O(1)MgZnFe3 square pyramids, corners with three equivalent O(2)ZnFe3 tetrahedra,  an edgeedge with one O(3)MgZnFe3 square pyramid, and edges with two equivalent O(1)MgZnFe3 square pyramids. In the third O site, O(3) is bonded to one Mg(1), one Fe(2), two equivalent Fe(1), and one Zn(1) atom to form distorted OMgZnFe3 square pyramids that share corners with two equivalent O(1)MgZnFe3 square pyramids, corners with four equivalent O(3)MgZnFe3 square pyramids, corners with three equivalent O(2)ZnFe3 tetrahedra, edges with six equivalent O(1)MgZnFe3 square pyramids, and  an edgeedge with one O(2)ZnFe3 tetrahedra. is represented by the CIF file [CIF]
data_MgZn2(FeO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.021
_cell_length_b   5.983
_cell_length_c   6.310
_cell_angle_alpha   90.002
_cell_angle_beta   118.490
_cell_angle_gamma   119.791
_symmetry_Int_Tables_number   1
_cell_volume   164.808
_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  0.000  0.000  0.500  1.0
  Zn  Zn1  1  0.330  0.165  0.966  1.0
  Zn  Zn2  1  0.670  0.835  0.034  1.0
  Fe  Fe3  1  0.500  1.000  0.500  1.0
  Fe  Fe4  1  0.500  0.500  0.500  1.0
  Fe  Fe5  1  1.000  0.500  1.000  1.0
  Fe  Fe6  1  0.000  0.500  0.500  1.0
  O  O7  1  0.988  0.738  0.251  1.0
  O  O8  1  0.446  0.723  0.681  1.0
  O  O9  1  0.476  0.738  0.235  1.0
  O  O10  1  0.012  0.750  0.749  1.0
  O  O11  1  0.524  0.262  0.765  1.0
  O  O12  1  0.554  0.277  0.319  1.0
  O  O13  1  0.988  0.250  0.251  1.0
  O  O14  1  0.012  0.262  0.749  1.0
[/CIF]
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The compound described by MgZn2(FeO2)4 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form MgO6 octahedra that share corners with six equivalent Fe(2)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and edges with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-4°. There are three inequivalent Fe sites. In the first Fe site, Fe(1) 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(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and edges with two equivalent Fe(3)O6 octahedra. In the second Fe site, Fe(2) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form FeO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and edges with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-4°. In the third Fe site, Fe(3) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form FeO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, and edges with four equivalent Fe(1)O6 octahedra. Zn(1) is bonded in a 4-coordinate geometry to one O(2), one O(3), and two equivalent O(1) atoms. 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 Fe(3), and one Zn(1) atom to form OMgZnFe3 square pyramids that share  a cornercorner with one O(3)MgZnFe3 square pyramid, corners with five equivalent O(1)MgZnFe3 square pyramids, corners with three equivalent O(2)ZnFe3 tetrahedra, edges with three equivalent O(1)MgZnFe3 square pyramids, edges with three equivalent O(3)MgZnFe3 square pyramids, and  an edgeedge with one O(2)ZnFe3 tetrahedra. In the second O site, O(2) is bonded to one Fe(3), two equivalent Fe(1), and one Zn(1) atom to form distorted OZnFe3 tetrahedra that share corners with three equivalent O(3)MgZnFe3 square pyramids, corners with six equivalent O(1)MgZnFe3 square pyramids, corners with three equivalent O(2)ZnFe3 tetrahedra,  an edgeedge with one O(3)MgZnFe3 square pyramid, and edges with two equivalent O(1)MgZnFe3 square pyramids. In the third O site, O(3) is bonded to one Mg(1), one Fe(2), two equivalent Fe(1), and one Zn(1) atom to form distorted OMgZnFe3 square pyramids that share corners with two equivalent O(1)MgZnFe3 square pyramids, corners with four equivalent O(3)MgZnFe3 square pyramids, corners with three equivalent O(2)ZnFe3 tetrahedra, edges with six equivalent O(1)MgZnFe3 square pyramids, and  an edgeedge with one O(2)ZnFe3 tetrahedra. is represented by the CIF file [CIF]
data_MgZn2(FeO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.021
_cell_length_b   5.983
_cell_length_c   6.310
_cell_angle_alpha   90.002
_cell_angle_beta   118.490
_cell_angle_gamma   119.791
_symmetry_Int_Tables_number   1
_cell_volume   164.808
_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  0.000  0.000  0.500  1.0
  Zn  Zn1  1  0.330  0.165  0.966  1.0
  Zn  Zn2  1  0.670  0.835  0.034  1.0
  Fe  Fe3  1  0.500  1.000  0.500  1.0
  Fe  Fe4  1  0.500  0.500  0.500  1.0
  Fe  Fe5  1  1.000  0.500  1.000  1.0
  Fe  Fe6  1  0.000  0.500  0.500  1.0
  O  O7  1  0.988  0.738  0.251  1.0
  O  O8  1  0.446  0.723  0.681  1.0
  O  O9  1  0.476  0.738  0.235  1.0
  O  O10  1  0.012  0.750  0.749  1.0
  O  O11  1  0.524  0.262  0.765  1.0
  O  O12  1  0.554  0.277  0.319  1.0
  O  O13  1  0.988  0.250  0.251  1.0
  O  O14  1  0.012  0.262  0.749  1.0
[/CIF]
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