The material structure described by MgMn2(FeO2)4 is Aluminum carbonitride-derived structured and crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(2), one O(5), one O(6), and one O(7) atom to form distorted MgO4 tetrahedra that share corners with three equivalent Fe(3)O6 octahedra, corners with three equivalent Fe(4)O6 octahedra, corners with two equivalent Mn(2)O4 tetrahedra, and  an edgeedge with one Mn(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 34-63°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(2), one O(3), one O(4), and one O(7) atom to form distorted MnO4 tetrahedra that share corners with three equivalent Fe(3)O6 octahedra, corners with three equivalent Fe(4)O6 octahedra, and  an edgeedge with one Mg(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-70°. In the second Mn site, Mn(2) is bonded to one O(1), one O(5), one O(6), and one O(8) atom to form MnO4 tetrahedra that share corners with three equivalent Fe(3)O6 octahedra, corners with three equivalent Fe(4)O6 octahedra, and corners with two equivalent Mg(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 54-65°. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 5-coordinate geometry to one O(3), one O(4), one O(5), one O(6), and one O(8) atom. In the second Fe site, Fe(2) is bonded in a 5-coordinate geometry to one O(1), one O(3), one O(4), one O(5), and one O(6) atom. In the third Fe site, Fe(3) is bonded to one O(1), one O(2), one O(3), one O(5), one O(7), and one O(8) atom to form FeO6 octahedra that share corners with three equivalent Mg(1)O4 tetrahedra, corners with three equivalent Mn(1)O4 tetrahedra, corners with three equivalent Mn(2)O4 tetrahedra, and edges with two equivalent Fe(4)O6 octahedra. In the fourth Fe site, Fe(4) is bonded to one O(1), one O(2), one O(4), one O(6), one O(7), and one O(8) atom to form FeO6 octahedra that share corners with three equivalent Mg(1)O4 tetrahedra, corners with three equivalent Mn(1)O4 tetrahedra, corners with three equivalent Mn(2)O4 tetrahedra, and edges with two equivalent Fe(3)O6 octahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mn(2), one Fe(2), one Fe(3), and one Fe(4) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Mn(1), one Fe(3), and one Fe(4) atom. In the third O site, O(3) is bonded to one Mn(1), one Fe(1), one Fe(2), and one Fe(3) atom to form OMnFe3 tetrahedra that share  a cornercorner with one O(4)MnFe3 tetrahedra, corners with two equivalent O(6)MgMnFe3 trigonal bipyramids, and  an edgeedge with one O(4)MnFe3 tetrahedra. In the fourth O site, O(4) is bonded to one Mn(1), one Fe(1), one Fe(2), and one Fe(4) atom to form OMnFe3 tetrahedra that share  a cornercorner with one O(3)MnFe3 tetrahedra, corners with three equivalent O(6)MgMnFe3 trigonal bipyramids, and  an edgeedge with one O(3)MnFe3 tetrahedra. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Mg(1), one Mn(2), one Fe(1), one Fe(2), and one Fe(3) atom. In the sixth O site, O(6) is bonded to one Mg(1), one Mn(2), one Fe(1), one Fe(2), and one Fe(4) atom to form distorted corner-sharing OMgMnFe3 trigonal bipyramids. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Mn(1), one Fe(3), and one Fe(4) atom. In the eighth O site, O(8) is bonded in a rectangular see-saw-like geometry to one Mn(2), one Fe(1), one Fe(3), and one Fe(4) atom. is represented by the CIF file [CIF]
data_MgMn2(FeO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.376
_cell_length_b   6.326
_cell_length_c   6.082
_cell_angle_alpha   61.429
_cell_angle_beta   61.485
_cell_angle_gamma   59.072
_symmetry_Int_Tables_number   1
_cell_volume   175.867
_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  0.366  0.338  0.900  1.0
  Mn  Mn1  1  0.055  0.063  0.189  1.0
  Mn  Mn2  1  0.909  0.890  0.850  1.0
  Fe  Fe3  1  0.543  0.554  0.420  1.0
  Fe  Fe4  1  0.547  0.553  0.983  1.0
  Fe  Fe5  1  0.007  0.487  0.503  1.0
  Fe  Fe6  1  0.492  0.007  0.501  1.0
  O  O7  1  0.764  0.768  0.707  1.0
  O  O8  1  0.226  0.224  0.766  1.0
  O  O9  1  0.247  0.678  0.286  1.0
  O  O10  1  0.674  0.256  0.286  1.0
  O  O11  1  0.742  0.296  0.732  1.0
  O  O12  1  0.303  0.731  0.734  1.0
  O  O13  1  0.226  0.221  0.287  1.0
  O  O14  1  0.763  0.766  0.262  1.0
[/CIF]
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The material structure described by MgMn2(FeO2)4 is Aluminum carbonitride-derived structured and crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(2), one O(5), one O(6), and one O(7) atom to form distorted MgO4 tetrahedra that share corners with three equivalent Fe(3)O6 octahedra, corners with three equivalent Fe(4)O6 octahedra, corners with two equivalent Mn(2)O4 tetrahedra, and  an edgeedge with one Mn(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 34-63°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(2), one O(3), one O(4), and one O(7) atom to form distorted MnO4 tetrahedra that share corners with three equivalent Fe(3)O6 octahedra, corners with three equivalent Fe(4)O6 octahedra, and  an edgeedge with one Mg(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 53-70°. In the second Mn site, Mn(2) is bonded to one O(1), one O(5), one O(6), and one O(8) atom to form MnO4 tetrahedra that share corners with three equivalent Fe(3)O6 octahedra, corners with three equivalent Fe(4)O6 octahedra, and corners with two equivalent Mg(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 54-65°. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 5-coordinate geometry to one O(3), one O(4), one O(5), one O(6), and one O(8) atom. In the second Fe site, Fe(2) is bonded in a 5-coordinate geometry to one O(1), one O(3), one O(4), one O(5), and one O(6) atom. In the third Fe site, Fe(3) is bonded to one O(1), one O(2), one O(3), one O(5), one O(7), and one O(8) atom to form FeO6 octahedra that share corners with three equivalent Mg(1)O4 tetrahedra, corners with three equivalent Mn(1)O4 tetrahedra, corners with three equivalent Mn(2)O4 tetrahedra, and edges with two equivalent Fe(4)O6 octahedra. In the fourth Fe site, Fe(4) is bonded to one O(1), one O(2), one O(4), one O(6), one O(7), and one O(8) atom to form FeO6 octahedra that share corners with three equivalent Mg(1)O4 tetrahedra, corners with three equivalent Mn(1)O4 tetrahedra, corners with three equivalent Mn(2)O4 tetrahedra, and edges with two equivalent Fe(3)O6 octahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mn(2), one Fe(2), one Fe(3), and one Fe(4) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Mn(1), one Fe(3), and one Fe(4) atom. In the third O site, O(3) is bonded to one Mn(1), one Fe(1), one Fe(2), and one Fe(3) atom to form OMnFe3 tetrahedra that share  a cornercorner with one O(4)MnFe3 tetrahedra, corners with two equivalent O(6)MgMnFe3 trigonal bipyramids, and  an edgeedge with one O(4)MnFe3 tetrahedra. In the fourth O site, O(4) is bonded to one Mn(1), one Fe(1), one Fe(2), and one Fe(4) atom to form OMnFe3 tetrahedra that share  a cornercorner with one O(3)MnFe3 tetrahedra, corners with three equivalent O(6)MgMnFe3 trigonal bipyramids, and  an edgeedge with one O(3)MnFe3 tetrahedra. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Mg(1), one Mn(2), one Fe(1), one Fe(2), and one Fe(3) atom. In the sixth O site, O(6) is bonded to one Mg(1), one Mn(2), one Fe(1), one Fe(2), and one Fe(4) atom to form distorted corner-sharing OMgMnFe3 trigonal bipyramids. In the seventh O site, O(7) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Mn(1), one Fe(3), and one Fe(4) atom. In the eighth O site, O(8) is bonded in a rectangular see-saw-like geometry to one Mn(2), one Fe(1), one Fe(3), and one Fe(4) atom. is represented by the CIF file [CIF]
data_MgMn2(FeO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.376
_cell_length_b   6.326
_cell_length_c   6.082
_cell_angle_alpha   61.429
_cell_angle_beta   61.485
_cell_angle_gamma   59.072
_symmetry_Int_Tables_number   1
_cell_volume   175.867
_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  0.366  0.338  0.900  1.0
  Mn  Mn1  1  0.055  0.063  0.189  1.0
  Mn  Mn2  1  0.909  0.890  0.850  1.0
  Fe  Fe3  1  0.543  0.554  0.420  1.0
  Fe  Fe4  1  0.547  0.553  0.983  1.0
  Fe  Fe5  1  0.007  0.487  0.503  1.0
  Fe  Fe6  1  0.492  0.007  0.501  1.0
  O  O7  1  0.764  0.768  0.707  1.0
  O  O8  1  0.226  0.224  0.766  1.0
  O  O9  1  0.247  0.678  0.286  1.0
  O  O10  1  0.674  0.256  0.286  1.0
  O  O11  1  0.742  0.296  0.732  1.0
  O  O12  1  0.303  0.731  0.734  1.0
  O  O13  1  0.226  0.221  0.287  1.0
  O  O14  1  0.763  0.766  0.262  1.0
[/CIF]
.