The crystal structure described by MgZn4(Fe2O5)2 crystallizes in the monoclinic Pm space group. Mg(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(9) atoms. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(4), and two equivalent O(8) atoms to form FeO4 tetrahedra that share  a cornercorner with one Fe(2)O4 tetrahedra, corners with two equivalent Fe(1)O4 tetrahedra, corners with two equivalent Zn(1)O4 tetrahedra, corners with two equivalent Zn(3)O4 tetrahedra, and corners with two equivalent Zn(4)O4 trigonal pyramids. In the second Fe site, Fe(2) is bonded to one O(1), one O(3), and two equivalent O(10) atoms to form FeO4 tetrahedra that share  a cornercorner with one Fe(1)O4 tetrahedra, corners with two equivalent Fe(2)O4 tetrahedra, corners with two equivalent Zn(3)O4 tetrahedra, corners with two equivalent Zn(2)O4 trigonal pyramids, and corners with two equivalent Zn(4)O4 trigonal pyramids. In the third Fe site, Fe(3) is bonded to one O(2), one O(9), and two equivalent O(5) atoms to form distorted FeO4 tetrahedra that share  a cornercorner with one Fe(4)O4 tetrahedra, corners with two equivalent Fe(3)O4 tetrahedra, corners with two equivalent Zn(1)O4 tetrahedra, corners with two equivalent Zn(2)O4 trigonal pyramids, and corners with two equivalent Zn(4)O4 trigonal pyramids. In the fourth Fe site, Fe(4) is bonded to one O(7), one O(9), and two equivalent O(6) atoms to form FeO4 tetrahedra that share  a cornercorner with one Fe(3)O4 tetrahedra, corners with two equivalent Fe(4)O4 tetrahedra, corners with two equivalent Zn(1)O4 tetrahedra, corners with two equivalent Zn(3)O4 tetrahedra, and corners with two equivalent Zn(2)O4 trigonal pyramids. There are four inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(5), one O(6), and two equivalent O(4) atoms to form ZnO4 tetrahedra that share corners with two equivalent Fe(1)O4 tetrahedra, corners with two equivalent Fe(3)O4 tetrahedra, corners with two equivalent Fe(4)O4 tetrahedra, corners with two equivalent Zn(1)O4 tetrahedra, and  an edgeedge with one Zn(2)O4 trigonal pyramid. In the second Zn site, Zn(2) is bonded to one O(5), one O(6), and two equivalent O(3) atoms to form ZnO4 trigonal pyramids that share corners with two equivalent Fe(2)O4 tetrahedra, corners with two equivalent Fe(3)O4 tetrahedra, corners with two equivalent Fe(4)O4 tetrahedra, corners with two equivalent Zn(2)O4 trigonal pyramids, and  an edgeedge with one Zn(1)O4 tetrahedra. In the third Zn site, Zn(3) is bonded to one O(10), one O(8), and two equivalent O(7) atoms to form ZnO4 tetrahedra that share corners with two equivalent Fe(1)O4 tetrahedra, corners with two equivalent Fe(2)O4 tetrahedra, corners with two equivalent Fe(4)O4 tetrahedra, corners with two equivalent Zn(3)O4 tetrahedra, and  an edgeedge with one Zn(4)O4 trigonal pyramid. In the fourth Zn site, Zn(4) is bonded to one O(10), one O(8), and two equivalent O(2) atoms to form ZnO4 trigonal pyramids that share corners with two equivalent Fe(1)O4 tetrahedra, corners with two equivalent Fe(2)O4 tetrahedra, corners with two equivalent Fe(3)O4 tetrahedra, corners with two equivalent Zn(4)O4 trigonal pyramids, and  an edgeedge with one Zn(3)O4 tetrahedra. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Fe(1) and one Fe(2) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent Mg(1), one Fe(3), and two equivalent Zn(4) atoms. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent Mg(1), one Fe(2), and two equivalent Zn(2) atoms. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Fe(1) and two equivalent Zn(1) atoms. In the fifth O site, O(5) is bonded to two equivalent Fe(3), one Zn(1), and one Zn(2) atom to form OZn2Fe2 tetrahedra that share corners with two equivalent O(9)Mg2Fe2 tetrahedra, corners with two equivalent O(5)Zn2Fe2 tetrahedra, and  an edgeedge with one O(6)Zn2Fe2 tetrahedra. In the sixth O site, O(6) is bonded to two equivalent Fe(4), one Zn(1), and one Zn(2) atom to form OZn2Fe2 tetrahedra that share corners with two equivalent O(9)Mg2Fe2 tetrahedra, corners with two equivalent O(6)Zn2Fe2 tetrahedra, and  an edgeedge with one O(5)Zn2Fe2 tetrahedra. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Fe(4) and two equivalent Zn(3) atoms. In the eighth O site, O(8) is bonded to two equivalent Fe(1), one Zn(3), and one Zn(4) atom to form a mixture of edge and corner-sharing OZn2Fe2 tetrahedra. In the ninth O site, O(9) is bonded to two equivalent Mg(1), one Fe(3), and one Fe(4) atom to form distorted OMg2Fe2 tetrahedra that share corners with two equivalent O(9)Mg2Fe2 tetrahedra, corners with two equivalent O(5)Zn2Fe2 tetrahedra, and corners with two equivalent O(6)Zn2Fe2 tetrahedra. In the tenth O site, O(10) is bonded to two equivalent Fe(2), one Zn(3), and one Zn(4) atom to form a mixture of edge and corner-sharing OZn2Fe2 tetrahedra. is represented by the CIF file [CIF]
data_MgZn4(Fe2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.186
_cell_length_b   8.082
_cell_length_c   10.344
_cell_angle_alpha   90.283
_cell_angle_beta   90.015
_cell_angle_gamma   90.001
_symmetry_Int_Tables_number   1
_cell_volume   266.333
_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  0.500  0.899  0.158  1.0
  Zn  Zn1  1  0.500  0.434  0.869  1.0
  Zn  Zn2  1  0.500  0.566  0.133  1.0
  Zn  Zn3  1  0.500  0.927  0.631  1.0
  Zn  Zn4  1  0.500  0.092  0.384  1.0
  Fe  Fe5  1  1.000  0.317  0.598  1.0
  Fe  Fe6  1  1.000  0.694  0.409  1.0
  Fe  Fe7  1  0.000  0.199  0.089  1.0
  Fe  Fe8  1  0.000  0.803  0.896  1.0
  O  O9  1  0.000  0.482  0.480  1.0
  O  O10  1  1.000  0.081  0.272  1.0
  O  O11  1  1.000  0.689  0.212  1.0
  O  O12  1  1.000  0.372  0.776  1.0
  O  O13  1  0.500  0.348  0.058  1.0
  O  O14  1  0.500  0.670  0.945  1.0
  O  O15  1  0.000  0.868  0.720  1.0
  O  O16  1  0.500  0.171  0.564  1.0
  O  O17  1  0.000  0.961  0.039  1.0
  O  O18  1  0.500  0.833  0.442  1.0
[/CIF]
.
The crystal structure described by MgZn4(Fe2O5)2 crystallizes in the monoclinic Pm space group. Mg(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(9) atoms. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(4), and two equivalent O(8) atoms to form FeO4 tetrahedra that share  a cornercorner with one Fe(2)O4 tetrahedra, corners with two equivalent Fe(1)O4 tetrahedra, corners with two equivalent Zn(1)O4 tetrahedra, corners with two equivalent Zn(3)O4 tetrahedra, and corners with two equivalent Zn(4)O4 trigonal pyramids. In the second Fe site, Fe(2) is bonded to one O(1), one O(3), and two equivalent O(10) atoms to form FeO4 tetrahedra that share  a cornercorner with one Fe(1)O4 tetrahedra, corners with two equivalent Fe(2)O4 tetrahedra, corners with two equivalent Zn(3)O4 tetrahedra, corners with two equivalent Zn(2)O4 trigonal pyramids, and corners with two equivalent Zn(4)O4 trigonal pyramids. In the third Fe site, Fe(3) is bonded to one O(2), one O(9), and two equivalent O(5) atoms to form distorted FeO4 tetrahedra that share  a cornercorner with one Fe(4)O4 tetrahedra, corners with two equivalent Fe(3)O4 tetrahedra, corners with two equivalent Zn(1)O4 tetrahedra, corners with two equivalent Zn(2)O4 trigonal pyramids, and corners with two equivalent Zn(4)O4 trigonal pyramids. In the fourth Fe site, Fe(4) is bonded to one O(7), one O(9), and two equivalent O(6) atoms to form FeO4 tetrahedra that share  a cornercorner with one Fe(3)O4 tetrahedra, corners with two equivalent Fe(4)O4 tetrahedra, corners with two equivalent Zn(1)O4 tetrahedra, corners with two equivalent Zn(3)O4 tetrahedra, and corners with two equivalent Zn(2)O4 trigonal pyramids. There are four inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(5), one O(6), and two equivalent O(4) atoms to form ZnO4 tetrahedra that share corners with two equivalent Fe(1)O4 tetrahedra, corners with two equivalent Fe(3)O4 tetrahedra, corners with two equivalent Fe(4)O4 tetrahedra, corners with two equivalent Zn(1)O4 tetrahedra, and  an edgeedge with one Zn(2)O4 trigonal pyramid. In the second Zn site, Zn(2) is bonded to one O(5), one O(6), and two equivalent O(3) atoms to form ZnO4 trigonal pyramids that share corners with two equivalent Fe(2)O4 tetrahedra, corners with two equivalent Fe(3)O4 tetrahedra, corners with two equivalent Fe(4)O4 tetrahedra, corners with two equivalent Zn(2)O4 trigonal pyramids, and  an edgeedge with one Zn(1)O4 tetrahedra. In the third Zn site, Zn(3) is bonded to one O(10), one O(8), and two equivalent O(7) atoms to form ZnO4 tetrahedra that share corners with two equivalent Fe(1)O4 tetrahedra, corners with two equivalent Fe(2)O4 tetrahedra, corners with two equivalent Fe(4)O4 tetrahedra, corners with two equivalent Zn(3)O4 tetrahedra, and  an edgeedge with one Zn(4)O4 trigonal pyramid. In the fourth Zn site, Zn(4) is bonded to one O(10), one O(8), and two equivalent O(2) atoms to form ZnO4 trigonal pyramids that share corners with two equivalent Fe(1)O4 tetrahedra, corners with two equivalent Fe(2)O4 tetrahedra, corners with two equivalent Fe(3)O4 tetrahedra, corners with two equivalent Zn(4)O4 trigonal pyramids, and  an edgeedge with one Zn(3)O4 tetrahedra. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Fe(1) and one Fe(2) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent Mg(1), one Fe(3), and two equivalent Zn(4) atoms. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent Mg(1), one Fe(2), and two equivalent Zn(2) atoms. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Fe(1) and two equivalent Zn(1) atoms. In the fifth O site, O(5) is bonded to two equivalent Fe(3), one Zn(1), and one Zn(2) atom to form OZn2Fe2 tetrahedra that share corners with two equivalent O(9)Mg2Fe2 tetrahedra, corners with two equivalent O(5)Zn2Fe2 tetrahedra, and  an edgeedge with one O(6)Zn2Fe2 tetrahedra. In the sixth O site, O(6) is bonded to two equivalent Fe(4), one Zn(1), and one Zn(2) atom to form OZn2Fe2 tetrahedra that share corners with two equivalent O(9)Mg2Fe2 tetrahedra, corners with two equivalent O(6)Zn2Fe2 tetrahedra, and  an edgeedge with one O(5)Zn2Fe2 tetrahedra. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Fe(4) and two equivalent Zn(3) atoms. In the eighth O site, O(8) is bonded to two equivalent Fe(1), one Zn(3), and one Zn(4) atom to form a mixture of edge and corner-sharing OZn2Fe2 tetrahedra. In the ninth O site, O(9) is bonded to two equivalent Mg(1), one Fe(3), and one Fe(4) atom to form distorted OMg2Fe2 tetrahedra that share corners with two equivalent O(9)Mg2Fe2 tetrahedra, corners with two equivalent O(5)Zn2Fe2 tetrahedra, and corners with two equivalent O(6)Zn2Fe2 tetrahedra. In the tenth O site, O(10) is bonded to two equivalent Fe(2), one Zn(3), and one Zn(4) atom to form a mixture of edge and corner-sharing OZn2Fe2 tetrahedra. is represented by the CIF file [CIF]
data_MgZn4(Fe2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.186
_cell_length_b   8.082
_cell_length_c   10.344
_cell_angle_alpha   90.283
_cell_angle_beta   90.015
_cell_angle_gamma   90.001
_symmetry_Int_Tables_number   1
_cell_volume   266.333
_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  0.500  0.899  0.158  1.0
  Zn  Zn1  1  0.500  0.434  0.869  1.0
  Zn  Zn2  1  0.500  0.566  0.133  1.0
  Zn  Zn3  1  0.500  0.927  0.631  1.0
  Zn  Zn4  1  0.500  0.092  0.384  1.0
  Fe  Fe5  1  1.000  0.317  0.598  1.0
  Fe  Fe6  1  1.000  0.694  0.409  1.0
  Fe  Fe7  1  0.000  0.199  0.089  1.0
  Fe  Fe8  1  0.000  0.803  0.896  1.0
  O  O9  1  0.000  0.482  0.480  1.0
  O  O10  1  1.000  0.081  0.272  1.0
  O  O11  1  1.000  0.689  0.212  1.0
  O  O12  1  1.000  0.372  0.776  1.0
  O  O13  1  0.500  0.348  0.058  1.0
  O  O14  1  0.500  0.670  0.945  1.0
  O  O15  1  0.000  0.868  0.720  1.0
  O  O16  1  0.500  0.171  0.564  1.0
  O  O17  1  0.000  0.961  0.039  1.0
  O  O18  1  0.500  0.833  0.442  1.0
[/CIF]
.