The structure described by MgMn3Zn2O8 crystallizes in the monoclinic Cm space group. Mg(1) is bonded to one O(1), one O(4), and two equivalent O(6) atoms to form MgO4 tetrahedra that share corners with three equivalent Mn(1)O6 octahedra, corners with two equivalent Zn(1)O5 trigonal bipyramids, and corners with four equivalent Mn(2)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 26-64°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(3), one O(4), two equivalent O(5), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with three equivalent Mg(1)O4 tetrahedra, corners with two equivalent Mn(2)O5 trigonal bipyramids, corners with two equivalent Zn(1)O5 trigonal bipyramids,  an edgeedge with one Zn(1)O5 trigonal bipyramid, and edges with two equivalent Mn(2)O5 trigonal bipyramids. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(5) atom to form MnO5 trigonal bipyramids that share  a cornercorner with one Mn(1)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, corners with two equivalent Zn(1)O5 trigonal bipyramids,  an edgeedge with one Mn(1)O6 octahedra, and edges with two equivalent Mn(2)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 68°. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(2), two equivalent O(5), and two equivalent O(6) atoms to form distorted ZnO5 trigonal bipyramids that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, corners with four equivalent Mn(2)O5 trigonal bipyramids, and  an edgeedge with one Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 57°. In the second Zn site, Zn(2) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(5), and two equivalent O(6) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), two equivalent Mn(2), and one Zn(2) atom to form OMgMn2Zn tetrahedra that share corners with three equivalent O(4)MgMn3 tetrahedra, corners with four equivalent O(5)Mn2Zn2 tetrahedra, and corners with four equivalent O(6)MgMnZn2 trigonal pyramids. In the second O site, O(2) is bonded in a trigonal planar geometry to two equivalent Mn(2) and one Zn(1) atom. In the third O site, O(3) is bonded in a trigonal non-coplanar geometry to one Mn(1) and two equivalent Mn(2) atoms. In the fourth O site, O(4) is bonded to one Mg(1), one Mn(1), and two equivalent Mn(2) atoms to form OMgMn3 tetrahedra that share corners with three equivalent O(1)MgMn2Zn tetrahedra, corners with four equivalent O(5)Mn2Zn2 tetrahedra, and corners with four equivalent O(6)MgMnZn2 trigonal pyramids. In the fifth O site, O(5) is bonded to one Mn(1), one Mn(2), one Zn(1), and one Zn(2) atom to form distorted OMn2Zn2 tetrahedra that share  a cornercorner with one O(5)Mn2Zn2 tetrahedra, corners with two equivalent O(1)MgMn2Zn tetrahedra, corners with two equivalent O(4)MgMn3 tetrahedra, corners with four equivalent O(6)MgMnZn2 trigonal pyramids,  an edgeedge with one O(5)Mn2Zn2 tetrahedra, and  an edgeedge with one O(6)MgMnZn2 trigonal pyramid. In the sixth O site, O(6) is bonded to one Mg(1), one Mn(1), one Zn(1), and one Zn(2) atom to form distorted OMgMnZn2 trigonal pyramids that share corners with two equivalent O(1)MgMn2Zn tetrahedra, corners with two equivalent O(4)MgMn3 tetrahedra, corners with four equivalent O(5)Mn2Zn2 tetrahedra,  an edgeedge with one O(5)Mn2Zn2 tetrahedra, and edges with two equivalent O(6)MgMnZn2 trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMn3Zn2O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.756
_cell_length_b   5.692
_cell_length_c   5.745
_cell_angle_alpha   119.694
_cell_angle_beta   89.824
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   163.498
_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  0.798  0.304  0.609  1.0
  Mn  Mn1  1  0.501  0.998  0.997  1.0
  Mn  Mn2  1  0.040  0.785  0.071  1.0
  Mn  Mn3  1  0.040  0.286  0.071  1.0
  Zn  Zn4  1  0.565  0.704  0.407  1.0
  Zn  Zn5  1  0.362  0.290  0.581  1.0
  O  O6  1  0.088  0.398  0.796  1.0
  O  O7  1  0.898  0.632  0.264  1.0
  O  O8  1  0.181  0.932  0.863  1.0
  O  O9  1  0.822  0.102  0.205  1.0
  O  O10  1  0.373  0.355  0.249  1.0
  O  O11  1  0.373  0.895  0.249  1.0
  O  O12  1  0.599  0.105  0.736  1.0
  O  O13  1  0.599  0.631  0.736  1.0
[/CIF]
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The structure described by MgMn3Zn2O8 crystallizes in the monoclinic Cm space group. Mg(1) is bonded to one O(1), one O(4), and two equivalent O(6) atoms to form MgO4 tetrahedra that share corners with three equivalent Mn(1)O6 octahedra, corners with two equivalent Zn(1)O5 trigonal bipyramids, and corners with four equivalent Mn(2)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 26-64°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(3), one O(4), two equivalent O(5), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with three equivalent Mg(1)O4 tetrahedra, corners with two equivalent Mn(2)O5 trigonal bipyramids, corners with two equivalent Zn(1)O5 trigonal bipyramids,  an edgeedge with one Zn(1)O5 trigonal bipyramid, and edges with two equivalent Mn(2)O5 trigonal bipyramids. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(5) atom to form MnO5 trigonal bipyramids that share  a cornercorner with one Mn(1)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, corners with two equivalent Zn(1)O5 trigonal bipyramids,  an edgeedge with one Mn(1)O6 octahedra, and edges with two equivalent Mn(2)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 68°. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(2), two equivalent O(5), and two equivalent O(6) atoms to form distorted ZnO5 trigonal bipyramids that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, corners with four equivalent Mn(2)O5 trigonal bipyramids, and  an edgeedge with one Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 57°. In the second Zn site, Zn(2) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(5), and two equivalent O(6) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), two equivalent Mn(2), and one Zn(2) atom to form OMgMn2Zn tetrahedra that share corners with three equivalent O(4)MgMn3 tetrahedra, corners with four equivalent O(5)Mn2Zn2 tetrahedra, and corners with four equivalent O(6)MgMnZn2 trigonal pyramids. In the second O site, O(2) is bonded in a trigonal planar geometry to two equivalent Mn(2) and one Zn(1) atom. In the third O site, O(3) is bonded in a trigonal non-coplanar geometry to one Mn(1) and two equivalent Mn(2) atoms. In the fourth O site, O(4) is bonded to one Mg(1), one Mn(1), and two equivalent Mn(2) atoms to form OMgMn3 tetrahedra that share corners with three equivalent O(1)MgMn2Zn tetrahedra, corners with four equivalent O(5)Mn2Zn2 tetrahedra, and corners with four equivalent O(6)MgMnZn2 trigonal pyramids. In the fifth O site, O(5) is bonded to one Mn(1), one Mn(2), one Zn(1), and one Zn(2) atom to form distorted OMn2Zn2 tetrahedra that share  a cornercorner with one O(5)Mn2Zn2 tetrahedra, corners with two equivalent O(1)MgMn2Zn tetrahedra, corners with two equivalent O(4)MgMn3 tetrahedra, corners with four equivalent O(6)MgMnZn2 trigonal pyramids,  an edgeedge with one O(5)Mn2Zn2 tetrahedra, and  an edgeedge with one O(6)MgMnZn2 trigonal pyramid. In the sixth O site, O(6) is bonded to one Mg(1), one Mn(1), one Zn(1), and one Zn(2) atom to form distorted OMgMnZn2 trigonal pyramids that share corners with two equivalent O(1)MgMn2Zn tetrahedra, corners with two equivalent O(4)MgMn3 tetrahedra, corners with four equivalent O(5)Mn2Zn2 tetrahedra,  an edgeedge with one O(5)Mn2Zn2 tetrahedra, and edges with two equivalent O(6)MgMnZn2 trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMn3Zn2O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.756
_cell_length_b   5.692
_cell_length_c   5.745
_cell_angle_alpha   119.694
_cell_angle_beta   89.824
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   163.498
_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  0.798  0.304  0.609  1.0
  Mn  Mn1  1  0.501  0.998  0.997  1.0
  Mn  Mn2  1  0.040  0.785  0.071  1.0
  Mn  Mn3  1  0.040  0.286  0.071  1.0
  Zn  Zn4  1  0.565  0.704  0.407  1.0
  Zn  Zn5  1  0.362  0.290  0.581  1.0
  O  O6  1  0.088  0.398  0.796  1.0
  O  O7  1  0.898  0.632  0.264  1.0
  O  O8  1  0.181  0.932  0.863  1.0
  O  O9  1  0.822  0.102  0.205  1.0
  O  O10  1  0.373  0.355  0.249  1.0
  O  O11  1  0.373  0.895  0.249  1.0
  O  O12  1  0.599  0.105  0.736  1.0
  O  O13  1  0.599  0.631  0.736  1.0
[/CIF]
.