The structure described by MgZn2(FeO2)4 crystallizes in the orthorhombic Imm2 space group. Mg(1) is bonded in a 4-coordinate geometry to two equivalent O(3) and two equivalent O(4) atoms. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a tetrahedral geometry to two equivalent O(3) and two equivalent O(4) atoms. In the second Fe site, Fe(2) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(2) atoms. In the third Fe site, Fe(3) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(2), and two equivalent O(3) atoms. Zn(1) is bonded in a 5-coordinate geometry to one O(2), two equivalent O(1), and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Fe(2), one Fe(3), and two equivalent Zn(1) atoms. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Fe(2), two equivalent Fe(3), and one Zn(1) atom. In the third O site, O(3) is bonded to one Mg(1), one Fe(1), and two equivalent Fe(3) atoms to form distorted OMgFe3 tetrahedra that share  a cornercorner with one O(3)MgFe3 tetrahedra, corners with four equivalent O(4)MgZn2Fe tetrahedra, and  a faceface with one O(3)MgFe3 tetrahedra. In the fourth O site, O(4) is bonded to one Mg(1), one Fe(1), and two equivalent Zn(1) atoms to form distorted OMgZn2Fe tetrahedra that share  a cornercorner with one O(4)MgZn2Fe tetrahedra, corners with four equivalent O(3)MgFe3 tetrahedra, and  a faceface with one O(4)MgZn2Fe tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgZn2(FeO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.715
_cell_length_b   6.715
_cell_length_c   5.967
_cell_angle_alpha   63.620
_cell_angle_beta   63.620
_cell_angle_gamma   52.308
_symmetry_Int_Tables_number   1
_cell_volume   185.011
_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  0.748  0.748  0.752  1.0
  Zn  Zn1  1  0.184  0.674  0.571  1.0
  Zn  Zn2  1  0.674  0.184  0.571  1.0
  Fe  Fe3  1  0.996  0.996  0.004  1.0
  Fe  Fe4  1  0.254  0.254  0.246  1.0
  Fe  Fe5  1  0.577  0.577  0.185  1.0
  Fe  Fe6  1  0.577  0.577  0.660  1.0
  O  O7  1  0.373  0.373  0.382  1.0
  O  O8  1  0.373  0.373  0.872  1.0
  O  O9  1  0.386  0.871  0.371  1.0
  O  O10  1  0.871  0.386  0.371  1.0
  O  O11  1  0.371  0.838  0.895  1.0
  O  O12  1  0.838  0.371  0.895  1.0
  O  O13  1  0.888  0.888  0.383  1.0
  O  O14  1  0.888  0.888  0.841  1.0
[/CIF]
.
The structure described by MgZn2(FeO2)4 crystallizes in the orthorhombic Imm2 space group. Mg(1) is bonded in a 4-coordinate geometry to two equivalent O(3) and two equivalent O(4) atoms. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a tetrahedral geometry to two equivalent O(3) and two equivalent O(4) atoms. In the second Fe site, Fe(2) is bonded in a tetrahedral geometry to two equivalent O(1) and two equivalent O(2) atoms. In the third Fe site, Fe(3) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(2), and two equivalent O(3) atoms. Zn(1) is bonded in a 5-coordinate geometry to one O(2), two equivalent O(1), and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Fe(2), one Fe(3), and two equivalent Zn(1) atoms. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Fe(2), two equivalent Fe(3), and one Zn(1) atom. In the third O site, O(3) is bonded to one Mg(1), one Fe(1), and two equivalent Fe(3) atoms to form distorted OMgFe3 tetrahedra that share  a cornercorner with one O(3)MgFe3 tetrahedra, corners with four equivalent O(4)MgZn2Fe tetrahedra, and  a faceface with one O(3)MgFe3 tetrahedra. In the fourth O site, O(4) is bonded to one Mg(1), one Fe(1), and two equivalent Zn(1) atoms to form distorted OMgZn2Fe tetrahedra that share  a cornercorner with one O(4)MgZn2Fe tetrahedra, corners with four equivalent O(3)MgFe3 tetrahedra, and  a faceface with one O(4)MgZn2Fe tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgZn2(FeO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.715
_cell_length_b   6.715
_cell_length_c   5.967
_cell_angle_alpha   63.620
_cell_angle_beta   63.620
_cell_angle_gamma   52.308
_symmetry_Int_Tables_number   1
_cell_volume   185.011
_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  0.748  0.748  0.752  1.0
  Zn  Zn1  1  0.184  0.674  0.571  1.0
  Zn  Zn2  1  0.674  0.184  0.571  1.0
  Fe  Fe3  1  0.996  0.996  0.004  1.0
  Fe  Fe4  1  0.254  0.254  0.246  1.0
  Fe  Fe5  1  0.577  0.577  0.185  1.0
  Fe  Fe6  1  0.577  0.577  0.660  1.0
  O  O7  1  0.373  0.373  0.382  1.0
  O  O8  1  0.373  0.373  0.872  1.0
  O  O9  1  0.386  0.871  0.371  1.0
  O  O10  1  0.871  0.386  0.371  1.0
  O  O11  1  0.371  0.838  0.895  1.0
  O  O12  1  0.838  0.371  0.895  1.0
  O  O13  1  0.888  0.888  0.383  1.0
  O  O14  1  0.888  0.888  0.841  1.0
[/CIF]
.