The crystal structure described by MgMn4(CuO4)2 crystallizes in the orthorhombic Imm2 space group. Mg(1) is bonded to two equivalent O(2) and two equivalent O(4) atoms to form distorted MgO4 tetrahedra that share corners with two equivalent Mn(1)O4 tetrahedra,  an edgeedge with one Mn(2)O4 tetrahedra, and edges with two equivalent Mn(3)O5 trigonal bipyramids. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form MnO4 tetrahedra that share corners with two equivalent Mg(1)O4 tetrahedra and corners with six equivalent Mn(3)O5 trigonal bipyramids. In the second Mn site, Mn(2) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form distorted MnO4 tetrahedra that share corners with four equivalent Mn(3)O5 trigonal bipyramids and  an edgeedge with one Mg(1)O4 tetrahedra. In the third Mn site, Mn(3) is bonded to one O(3), two equivalent O(1), and two equivalent O(4) atoms to form distorted MnO5 trigonal bipyramids that share corners with two equivalent Mn(2)O4 tetrahedra, corners with three equivalent Mn(1)O4 tetrahedra,  an edgeedge with one Mg(1)O4 tetrahedra, and edges with two equivalent Mn(3)O5 trigonal bipyramids. Cu(1) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Mn(2) and two equivalent Mn(3) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one Mn(2), and two equivalent Cu(1) atoms. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Mn(1), one Mn(3), and two equivalent Cu(1) atoms. In the fourth O site, O(4) is bonded to one Mg(1), one Mn(1), and two equivalent Mn(3) atoms to form a mixture of corner and face-sharing OMgMn3 trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMn4(CuO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.869
_cell_length_b   6.007
_cell_length_c   6.869
_cell_angle_alpha   64.073
_cell_angle_beta   49.397
_cell_angle_gamma   64.073
_symmetry_Int_Tables_number   1
_cell_volume   188.640
_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  0.035  0.465  0.035  1.0
  Mn  Mn1  1  0.004  0.996  0.004  1.0
  Mn  Mn2  1  0.276  0.224  0.276  1.0
  Mn  Mn3  1  0.081  0.672  0.576  1.0
  Mn  Mn4  1  0.576  0.672  0.081  1.0
  Cu  Cu5  1  0.626  0.127  0.626  1.0
  Cu  Cu6  1  0.626  0.620  0.626  1.0
  O  O7  1  0.358  0.433  0.358  1.0
  O  O8  1  0.409  0.358  0.876  1.0
  O  O9  1  0.358  0.851  0.358  1.0
  O  O10  1  0.403  0.869  0.859  1.0
  O  O11  1  0.876  0.358  0.409  1.0
  O  O12  1  0.859  0.869  0.403  1.0
  O  O13  1  0.892  0.397  0.892  1.0
  O  O14  1  0.892  0.819  0.892  1.0
[/CIF]
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The crystal structure described by MgMn4(CuO4)2 crystallizes in the orthorhombic Imm2 space group. Mg(1) is bonded to two equivalent O(2) and two equivalent O(4) atoms to form distorted MgO4 tetrahedra that share corners with two equivalent Mn(1)O4 tetrahedra,  an edgeedge with one Mn(2)O4 tetrahedra, and edges with two equivalent Mn(3)O5 trigonal bipyramids. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form MnO4 tetrahedra that share corners with two equivalent Mg(1)O4 tetrahedra and corners with six equivalent Mn(3)O5 trigonal bipyramids. In the second Mn site, Mn(2) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form distorted MnO4 tetrahedra that share corners with four equivalent Mn(3)O5 trigonal bipyramids and  an edgeedge with one Mg(1)O4 tetrahedra. In the third Mn site, Mn(3) is bonded to one O(3), two equivalent O(1), and two equivalent O(4) atoms to form distorted MnO5 trigonal bipyramids that share corners with two equivalent Mn(2)O4 tetrahedra, corners with three equivalent Mn(1)O4 tetrahedra,  an edgeedge with one Mg(1)O4 tetrahedra, and edges with two equivalent Mn(3)O5 trigonal bipyramids. Cu(1) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Mn(2) and two equivalent Mn(3) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mg(1), one Mn(2), and two equivalent Cu(1) atoms. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Mn(1), one Mn(3), and two equivalent Cu(1) atoms. In the fourth O site, O(4) is bonded to one Mg(1), one Mn(1), and two equivalent Mn(3) atoms to form a mixture of corner and face-sharing OMgMn3 trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMn4(CuO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.869
_cell_length_b   6.007
_cell_length_c   6.869
_cell_angle_alpha   64.073
_cell_angle_beta   49.397
_cell_angle_gamma   64.073
_symmetry_Int_Tables_number   1
_cell_volume   188.640
_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  0.035  0.465  0.035  1.0
  Mn  Mn1  1  0.004  0.996  0.004  1.0
  Mn  Mn2  1  0.276  0.224  0.276  1.0
  Mn  Mn3  1  0.081  0.672  0.576  1.0
  Mn  Mn4  1  0.576  0.672  0.081  1.0
  Cu  Cu5  1  0.626  0.127  0.626  1.0
  Cu  Cu6  1  0.626  0.620  0.626  1.0
  O  O7  1  0.358  0.433  0.358  1.0
  O  O8  1  0.409  0.358  0.876  1.0
  O  O9  1  0.358  0.851  0.358  1.0
  O  O10  1  0.403  0.869  0.859  1.0
  O  O11  1  0.876  0.358  0.409  1.0
  O  O12  1  0.859  0.869  0.403  1.0
  O  O13  1  0.892  0.397  0.892  1.0
  O  O14  1  0.892  0.819  0.892  1.0
[/CIF]
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