The material structure described by MgMn4(FeO4)2 is Aluminum carbonitride-derived structured and crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(3), one O(5), one O(7), and one O(8) atom to form distorted MgO4 tetrahedra that share corners with three equivalent Fe(1)O6 octahedra, corners with three equivalent Fe(2)O6 octahedra, corners with two equivalent Mn(1)O4 tetrahedra, and  an edgeedge with one Mn(4)O5 square pyramid. The corner-sharing octahedral tilt angles range from 29-73°. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(4), one O(6), one O(7), and one O(8) atom to form MnO4 tetrahedra that share corners with three equivalent Fe(1)O6 octahedra, corners with three equivalent Fe(2)O6 octahedra, corners with three equivalent Mn(4)O5 square pyramids, and corners with two equivalent Mg(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 55-72°. In the second Mn site, Mn(2) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(5) atom. In the third Mn site, Mn(3) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(6), one O(7), and one O(8) atom. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(2), one O(4), one O(7), and one O(8) atom to form distorted MnO5 square pyramids that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra, corners with three equivalent Mn(1)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, and  an edgeedge with one Mg(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 71-72°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(8) atom to form FeO6 octahedra that share  a cornercorner with one Mn(4)O5 square pyramid, corners with three equivalent Mg(1)O4 tetrahedra, corners with three equivalent Mn(1)O4 tetrahedra, edges with two equivalent Fe(2)O6 octahedra, and  an edgeedge with one Mn(4)O5 square pyramid. In the second Fe site, Fe(2) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form FeO6 octahedra that share  a cornercorner with one Mn(4)O5 square pyramid, corners with three equivalent Mg(1)O4 tetrahedra, corners with three equivalent Mn(1)O4 tetrahedra, edges with two equivalent Fe(1)O6 octahedra, and  an edgeedge with one Mn(4)O5 square pyramid. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Mn(2), one Mn(3), one Mn(4), and one Fe(1) atom to form OMn3Fe tetrahedra that share  a cornercorner with one O(2)Mn3Fe tetrahedra, corners with two equivalent O(3)MgMnFe2 tetrahedra, corners with two equivalent O(6)Mn2Fe2 trigonal pyramids, and  an edgeedge with one O(2)Mn3Fe tetrahedra. In the second O site, O(2) is bonded to one Mn(2), one Mn(3), one Mn(4), and one Fe(2) atom to form OMn3Fe tetrahedra that share  a cornercorner with one O(1)Mn3Fe tetrahedra, corners with two equivalent O(3)MgMnFe2 tetrahedra, corners with two equivalent O(6)Mn2Fe2 trigonal pyramids, and  an edgeedge with one O(1)Mn3Fe tetrahedra. In the third O site, O(3) is bonded to one Mg(1), one Mn(2), one Fe(1), and one Fe(2) atom to form distorted OMgMnFe2 tetrahedra that share corners with two equivalent O(1)Mn3Fe tetrahedra, corners with two equivalent O(2)Mn3Fe tetrahedra, and corners with two equivalent O(6)Mn2Fe2 trigonal pyramids. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Mn(1), one Mn(4), one Fe(1), and one Fe(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Mg(1), one Mn(2), one Fe(1), and one Fe(2) atom. In the sixth O site, O(6) is bonded to one Mn(1), one Mn(3), one Fe(1), and one Fe(2) atom to form distorted OMn2Fe2 trigonal pyramids that share corners with two equivalent O(3)MgMnFe2 tetrahedra, corners with two equivalent O(1)Mn3Fe tetrahedra, and corners with two equivalent O(2)Mn3Fe tetrahedra. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one Mg(1), one Mn(1), one Mn(3), one Mn(4), and one Fe(2) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Mg(1), one Mn(1), one Mn(3), one Mn(4), and one Fe(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMn4(FeO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.664
_cell_length_b   6.384
_cell_length_c   6.349
_cell_angle_alpha   59.846
_cell_angle_beta   58.916
_cell_angle_gamma   55.428
_symmetry_Int_Tables_number   1
_cell_volume   181.889
_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  0.056  0.023  0.434  1.0
  Mn  Mn1  1  0.977  0.963  0.011  1.0
  Mn  Mn2  1  0.344  0.304  0.190  1.0
  Mn  Mn3  1  0.079  0.527  0.719  1.0
  Mn  Mn4  1  0.578  0.110  0.658  1.0
  Fe  Fe5  1  0.608  0.628  0.138  1.0
  Fe  Fe6  1  0.623  0.623  0.614  1.0
  O  O7  1  0.395  0.386  0.417  1.0
  O  O8  1  0.407  0.397  0.813  1.0
  O  O9  1  0.422  0.886  0.357  1.0
  O  O10  1  0.379  0.857  0.872  1.0
  O  O11  1  0.895  0.413  0.350  1.0
  O  O12  1  0.804  0.386  0.890  1.0
  O  O13  1  0.853  0.881  0.418  1.0
  O  O14  1  0.856  0.891  0.817  1.0
[/CIF]
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The material structure described by MgMn4(FeO4)2 is Aluminum carbonitride-derived structured and crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(3), one O(5), one O(7), and one O(8) atom to form distorted MgO4 tetrahedra that share corners with three equivalent Fe(1)O6 octahedra, corners with three equivalent Fe(2)O6 octahedra, corners with two equivalent Mn(1)O4 tetrahedra, and  an edgeedge with one Mn(4)O5 square pyramid. The corner-sharing octahedral tilt angles range from 29-73°. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(4), one O(6), one O(7), and one O(8) atom to form MnO4 tetrahedra that share corners with three equivalent Fe(1)O6 octahedra, corners with three equivalent Fe(2)O6 octahedra, corners with three equivalent Mn(4)O5 square pyramids, and corners with two equivalent Mg(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 55-72°. In the second Mn site, Mn(2) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(5) atom. In the third Mn site, Mn(3) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(6), one O(7), and one O(8) atom. In the fourth Mn site, Mn(4) is bonded to one O(1), one O(2), one O(4), one O(7), and one O(8) atom to form distorted MnO5 square pyramids that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one Fe(2)O6 octahedra, corners with three equivalent Mn(1)O4 tetrahedra,  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, and  an edgeedge with one Mg(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 71-72°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(8) atom to form FeO6 octahedra that share  a cornercorner with one Mn(4)O5 square pyramid, corners with three equivalent Mg(1)O4 tetrahedra, corners with three equivalent Mn(1)O4 tetrahedra, edges with two equivalent Fe(2)O6 octahedra, and  an edgeedge with one Mn(4)O5 square pyramid. In the second Fe site, Fe(2) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form FeO6 octahedra that share  a cornercorner with one Mn(4)O5 square pyramid, corners with three equivalent Mg(1)O4 tetrahedra, corners with three equivalent Mn(1)O4 tetrahedra, edges with two equivalent Fe(1)O6 octahedra, and  an edgeedge with one Mn(4)O5 square pyramid. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one Mn(2), one Mn(3), one Mn(4), and one Fe(1) atom to form OMn3Fe tetrahedra that share  a cornercorner with one O(2)Mn3Fe tetrahedra, corners with two equivalent O(3)MgMnFe2 tetrahedra, corners with two equivalent O(6)Mn2Fe2 trigonal pyramids, and  an edgeedge with one O(2)Mn3Fe tetrahedra. In the second O site, O(2) is bonded to one Mn(2), one Mn(3), one Mn(4), and one Fe(2) atom to form OMn3Fe tetrahedra that share  a cornercorner with one O(1)Mn3Fe tetrahedra, corners with two equivalent O(3)MgMnFe2 tetrahedra, corners with two equivalent O(6)Mn2Fe2 trigonal pyramids, and  an edgeedge with one O(1)Mn3Fe tetrahedra. In the third O site, O(3) is bonded to one Mg(1), one Mn(2), one Fe(1), and one Fe(2) atom to form distorted OMgMnFe2 tetrahedra that share corners with two equivalent O(1)Mn3Fe tetrahedra, corners with two equivalent O(2)Mn3Fe tetrahedra, and corners with two equivalent O(6)Mn2Fe2 trigonal pyramids. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Mn(1), one Mn(4), one Fe(1), and one Fe(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Mg(1), one Mn(2), one Fe(1), and one Fe(2) atom. In the sixth O site, O(6) is bonded to one Mn(1), one Mn(3), one Fe(1), and one Fe(2) atom to form distorted OMn2Fe2 trigonal pyramids that share corners with two equivalent O(3)MgMnFe2 tetrahedra, corners with two equivalent O(1)Mn3Fe tetrahedra, and corners with two equivalent O(2)Mn3Fe tetrahedra. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one Mg(1), one Mn(1), one Mn(3), one Mn(4), and one Fe(2) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Mg(1), one Mn(1), one Mn(3), one Mn(4), and one Fe(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMn4(FeO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.664
_cell_length_b   6.384
_cell_length_c   6.349
_cell_angle_alpha   59.846
_cell_angle_beta   58.916
_cell_angle_gamma   55.428
_symmetry_Int_Tables_number   1
_cell_volume   181.889
_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  0.056  0.023  0.434  1.0
  Mn  Mn1  1  0.977  0.963  0.011  1.0
  Mn  Mn2  1  0.344  0.304  0.190  1.0
  Mn  Mn3  1  0.079  0.527  0.719  1.0
  Mn  Mn4  1  0.578  0.110  0.658  1.0
  Fe  Fe5  1  0.608  0.628  0.138  1.0
  Fe  Fe6  1  0.623  0.623  0.614  1.0
  O  O7  1  0.395  0.386  0.417  1.0
  O  O8  1  0.407  0.397  0.813  1.0
  O  O9  1  0.422  0.886  0.357  1.0
  O  O10  1  0.379  0.857  0.872  1.0
  O  O11  1  0.895  0.413  0.350  1.0
  O  O12  1  0.804  0.386  0.890  1.0
  O  O13  1  0.853  0.881  0.418  1.0
  O  O14  1  0.856  0.891  0.817  1.0
[/CIF]
.