The material structure described by MgZn2(FeO2)4 crystallizes in the monoclinic Cm space group. Mg(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(5) atoms to form distorted MgO6 octahedra that share corners with six equivalent Fe(3)O6 octahedra, edges with two equivalent Zn(2)O6 octahedra, edges with four equivalent Fe(2)O6 octahedra, and  a faceface with one Fe(1)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 2-6°. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form distorted FeO4 trigonal pyramids that share corners with three equivalent Fe(3)O6 octahedra, corners with three equivalent Zn(2)O6 octahedra, corners with six equivalent Fe(2)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-68°. In the second Fe site, Fe(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form FeO6 octahedra that share corners with three equivalent Fe(1)O4 trigonal pyramids, edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and edges with two equivalent Zn(2)O6 octahedra. In the third Fe site, Fe(3) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra, corners with three equivalent Fe(1)O4 trigonal pyramids, 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 2-6°. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a distorted rectangular see-saw-like geometry to one O(4), one O(6), and two equivalent O(5) atoms. In the second Zn site, Zn(2) is bonded to one O(2), one O(6), two equivalent O(1), and two equivalent O(5) atoms to form ZnO6 octahedra that share corners with three equivalent Fe(1)O4 trigonal pyramids, edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and edges with four equivalent Fe(2)O6 octahedra. There are six 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(2) atom to form distorted OMgZnFe3 square pyramids that share  a cornercorner with one O(4)MgZnFe3 square pyramid, corners with five equivalent O(5)MgZn2Fe2 square pyramids,  a cornercorner with one O(2)ZnFe3 tetrahedra, corners with two equivalent O(6)Zn2Fe2 tetrahedra,  an edgeedge with one O(5)MgZn2Fe2 square pyramid,  an edgeedge with one O(4)MgZnFe3 square pyramid, edges with two equivalent O(3)MgFe4 square pyramids, edges with two equivalent O(1)MgZnFe3 square pyramids, and  an edgeedge with one O(2)ZnFe3 tetrahedra. In the second O site, O(2) is bonded to one Fe(1), two equivalent Fe(2), and one Zn(2) atom to form distorted OZnFe3 tetrahedra that share  a cornercorner with one O(3)MgFe4 square pyramid, corners with two equivalent O(1)MgZnFe3 square pyramids, corners with two equivalent O(4)MgZnFe3 square pyramids, corners with four equivalent O(5)MgZn2Fe2 square pyramids, corners with three equivalent O(6)Zn2Fe2 tetrahedra,  an edgeedge with one O(3)MgFe4 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(1), one Fe(3), and two equivalent Fe(2) atoms to form distorted OMgFe4 square pyramids that share corners with two equivalent O(5)MgZn2Fe2 square pyramids, corners with four equivalent O(4)MgZnFe3 square pyramids,  a cornercorner with one O(2)ZnFe3 tetrahedra, corners with two equivalent O(6)Zn2Fe2 tetrahedra, edges with two equivalent O(5)MgZn2Fe2 square pyramids, edges with four equivalent O(1)MgZnFe3 square pyramids, and  an edgeedge with one O(2)ZnFe3 tetrahedra. In the fourth O site, O(4) is bonded to one Mg(1), one Fe(3), two equivalent Fe(2), and one Zn(1) atom to form OMgZnFe3 square pyramids that share corners with two equivalent O(1)MgZnFe3 square pyramids, corners with four equivalent O(3)MgFe4 square pyramids,  a cornercorner with one O(6)Zn2Fe2 tetrahedra, corners with two equivalent O(2)ZnFe3 tetrahedra, edges with two equivalent O(1)MgZnFe3 square pyramids, edges with four equivalent O(5)MgZn2Fe2 square pyramids, and  an edgeedge with one O(6)Zn2Fe2 tetrahedra. In the fifth O site, O(5) is bonded to one Mg(1), one Fe(2), one Fe(3), one Zn(1), and one Zn(2) atom to form OMgZn2Fe2 square pyramids that share  a cornercorner with one O(3)MgFe4 square pyramid, corners with five equivalent O(1)MgZnFe3 square pyramids,  a cornercorner with one O(6)Zn2Fe2 tetrahedra, corners with two equivalent O(2)ZnFe3 tetrahedra,  an edgeedge with one O(3)MgFe4 square pyramid,  an edgeedge with one O(1)MgZnFe3 square pyramid, edges with two equivalent O(5)MgZn2Fe2 square pyramids, edges with two equivalent O(4)MgZnFe3 square pyramids, and  an edgeedge with one O(6)Zn2Fe2 tetrahedra. In the sixth O site, O(6) is bonded to two equivalent Fe(2), one Zn(1), and one Zn(2) atom to form OZn2Fe2 tetrahedra that share  a cornercorner with one O(4)MgZnFe3 square pyramid, corners with two equivalent O(3)MgFe4 square pyramids, corners with two equivalent O(5)MgZn2Fe2 square pyramids, corners with four equivalent O(1)MgZnFe3 square pyramids, corners with three equivalent O(2)ZnFe3 tetrahedra,  an edgeedge with one O(4)MgZnFe3 square pyramid, and edges with two equivalent O(5)MgZn2Fe2 square pyramids. is represented by the CIF card [CIF]
data_MgZn2(FeO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.981
_cell_length_b   6.000
_cell_length_c   6.320
_cell_angle_alpha   61.659
_cell_angle_beta   61.976
_cell_angle_gamma   59.894
_symmetry_Int_Tables_number   1
_cell_volume   164.513
_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  0.118  0.119  0.643  1.0
  Zn  Zn1  1  0.968  0.966  0.101  1.0
  Zn  Zn2  1  0.123  0.625  0.628  1.0
  Fe  Fe3  1  0.276  0.279  0.166  1.0
  Fe  Fe4  1  0.624  0.127  0.623  1.0
  Fe  Fe5  1  0.629  0.632  0.108  1.0
  Fe  Fe6  1  0.624  0.625  0.623  1.0
  O  O7  1  0.380  0.377  0.354  1.0
  O  O8  1  0.395  0.396  0.814  1.0
  O  O9  1  0.380  0.889  0.354  1.0
  O  O10  1  0.890  0.377  0.357  1.0
  O  O11  1  0.372  0.872  0.885  1.0
  O  O12  1  0.872  0.371  0.886  1.0
  O  O13  1  0.853  0.849  0.449  1.0
  O  O14  1  0.872  0.871  0.886  1.0
[/CIF]
.
The material structure described by MgZn2(FeO2)4 crystallizes in the monoclinic Cm space group. Mg(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(5) atoms to form distorted MgO6 octahedra that share corners with six equivalent Fe(3)O6 octahedra, edges with two equivalent Zn(2)O6 octahedra, edges with four equivalent Fe(2)O6 octahedra, and  a faceface with one Fe(1)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 2-6°. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form distorted FeO4 trigonal pyramids that share corners with three equivalent Fe(3)O6 octahedra, corners with three equivalent Zn(2)O6 octahedra, corners with six equivalent Fe(2)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-68°. In the second Fe site, Fe(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form FeO6 octahedra that share corners with three equivalent Fe(1)O4 trigonal pyramids, edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Fe(2)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and edges with two equivalent Zn(2)O6 octahedra. In the third Fe site, Fe(3) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra, corners with three equivalent Fe(1)O4 trigonal pyramids, 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 2-6°. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a distorted rectangular see-saw-like geometry to one O(4), one O(6), and two equivalent O(5) atoms. In the second Zn site, Zn(2) is bonded to one O(2), one O(6), two equivalent O(1), and two equivalent O(5) atoms to form ZnO6 octahedra that share corners with three equivalent Fe(1)O4 trigonal pyramids, edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Fe(3)O6 octahedra, and edges with four equivalent Fe(2)O6 octahedra. There are six 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(2) atom to form distorted OMgZnFe3 square pyramids that share  a cornercorner with one O(4)MgZnFe3 square pyramid, corners with five equivalent O(5)MgZn2Fe2 square pyramids,  a cornercorner with one O(2)ZnFe3 tetrahedra, corners with two equivalent O(6)Zn2Fe2 tetrahedra,  an edgeedge with one O(5)MgZn2Fe2 square pyramid,  an edgeedge with one O(4)MgZnFe3 square pyramid, edges with two equivalent O(3)MgFe4 square pyramids, edges with two equivalent O(1)MgZnFe3 square pyramids, and  an edgeedge with one O(2)ZnFe3 tetrahedra. In the second O site, O(2) is bonded to one Fe(1), two equivalent Fe(2), and one Zn(2) atom to form distorted OZnFe3 tetrahedra that share  a cornercorner with one O(3)MgFe4 square pyramid, corners with two equivalent O(1)MgZnFe3 square pyramids, corners with two equivalent O(4)MgZnFe3 square pyramids, corners with four equivalent O(5)MgZn2Fe2 square pyramids, corners with three equivalent O(6)Zn2Fe2 tetrahedra,  an edgeedge with one O(3)MgFe4 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(1), one Fe(3), and two equivalent Fe(2) atoms to form distorted OMgFe4 square pyramids that share corners with two equivalent O(5)MgZn2Fe2 square pyramids, corners with four equivalent O(4)MgZnFe3 square pyramids,  a cornercorner with one O(2)ZnFe3 tetrahedra, corners with two equivalent O(6)Zn2Fe2 tetrahedra, edges with two equivalent O(5)MgZn2Fe2 square pyramids, edges with four equivalent O(1)MgZnFe3 square pyramids, and  an edgeedge with one O(2)ZnFe3 tetrahedra. In the fourth O site, O(4) is bonded to one Mg(1), one Fe(3), two equivalent Fe(2), and one Zn(1) atom to form OMgZnFe3 square pyramids that share corners with two equivalent O(1)MgZnFe3 square pyramids, corners with four equivalent O(3)MgFe4 square pyramids,  a cornercorner with one O(6)Zn2Fe2 tetrahedra, corners with two equivalent O(2)ZnFe3 tetrahedra, edges with two equivalent O(1)MgZnFe3 square pyramids, edges with four equivalent O(5)MgZn2Fe2 square pyramids, and  an edgeedge with one O(6)Zn2Fe2 tetrahedra. In the fifth O site, O(5) is bonded to one Mg(1), one Fe(2), one Fe(3), one Zn(1), and one Zn(2) atom to form OMgZn2Fe2 square pyramids that share  a cornercorner with one O(3)MgFe4 square pyramid, corners with five equivalent O(1)MgZnFe3 square pyramids,  a cornercorner with one O(6)Zn2Fe2 tetrahedra, corners with two equivalent O(2)ZnFe3 tetrahedra,  an edgeedge with one O(3)MgFe4 square pyramid,  an edgeedge with one O(1)MgZnFe3 square pyramid, edges with two equivalent O(5)MgZn2Fe2 square pyramids, edges with two equivalent O(4)MgZnFe3 square pyramids, and  an edgeedge with one O(6)Zn2Fe2 tetrahedra. In the sixth O site, O(6) is bonded to two equivalent Fe(2), one Zn(1), and one Zn(2) atom to form OZn2Fe2 tetrahedra that share  a cornercorner with one O(4)MgZnFe3 square pyramid, corners with two equivalent O(3)MgFe4 square pyramids, corners with two equivalent O(5)MgZn2Fe2 square pyramids, corners with four equivalent O(1)MgZnFe3 square pyramids, corners with three equivalent O(2)ZnFe3 tetrahedra,  an edgeedge with one O(4)MgZnFe3 square pyramid, and edges with two equivalent O(5)MgZn2Fe2 square pyramids. is represented by the CIF card [CIF]
data_MgZn2(FeO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.981
_cell_length_b   6.000
_cell_length_c   6.320
_cell_angle_alpha   61.659
_cell_angle_beta   61.976
_cell_angle_gamma   59.894
_symmetry_Int_Tables_number   1
_cell_volume   164.513
_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  0.118  0.119  0.643  1.0
  Zn  Zn1  1  0.968  0.966  0.101  1.0
  Zn  Zn2  1  0.123  0.625  0.628  1.0
  Fe  Fe3  1  0.276  0.279  0.166  1.0
  Fe  Fe4  1  0.624  0.127  0.623  1.0
  Fe  Fe5  1  0.629  0.632  0.108  1.0
  Fe  Fe6  1  0.624  0.625  0.623  1.0
  O  O7  1  0.380  0.377  0.354  1.0
  O  O8  1  0.395  0.396  0.814  1.0
  O  O9  1  0.380  0.889  0.354  1.0
  O  O10  1  0.890  0.377  0.357  1.0
  O  O11  1  0.372  0.872  0.885  1.0
  O  O12  1  0.872  0.371  0.886  1.0
  O  O13  1  0.853  0.849  0.449  1.0
  O  O14  1  0.872  0.871  0.886  1.0
[/CIF]
.