The crystal structure described by MgMn3SnO8 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form MgO6 octahedra that share corners with six equivalent Sn(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-10°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MnO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with two equivalent Sn(1)O6 octahedra. In the second Mn site, Mn(2) is bonded to two equivalent O(1) and four equivalent O(3) atoms to form MnO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Sn(1)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. Sn(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form SnO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-10°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Mn(2) and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Mg(1), two equivalent Mn(1), and one Sn(1) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mn(1), one Mn(2), and one Sn(1) atom. is represented by the CIF file [CIF]
data_MgMn3SnO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.194
_cell_length_b   6.194
_cell_length_c   6.020
_cell_angle_alpha   59.703
_cell_angle_beta   59.705
_cell_angle_gamma   57.261
_symmetry_Int_Tables_number   1
_cell_volume   158.954
_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  0.000  0.000  0.000  1.0
  Mn  Mn1  1  0.000  0.500  0.500  1.0
  Mn  Mn2  1  0.500  0.000  0.500  1.0
  Mn  Mn3  1  0.500  0.500  0.000  1.0
  Sn  Sn4  1  0.500  0.500  0.500  1.0
  O  O5  1  0.281  0.281  0.258  1.0
  O  O6  1  0.257  0.257  0.712  1.0
  O  O7  1  0.270  0.727  0.232  1.0
  O  O8  1  0.727  0.270  0.232  1.0
  O  O9  1  0.273  0.730  0.768  1.0
  O  O10  1  0.730  0.273  0.768  1.0
  O  O11  1  0.743  0.743  0.288  1.0
  O  O12  1  0.719  0.719  0.742  1.0
[/CIF]
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The crystal structure described by MgMn3SnO8 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form MgO6 octahedra that share corners with six equivalent Sn(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-10°. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MnO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with two equivalent Sn(1)O6 octahedra. In the second Mn site, Mn(2) is bonded to two equivalent O(1) and four equivalent O(3) atoms to form MnO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Sn(1)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. Sn(1) is bonded to two equivalent O(2) and four equivalent O(3) atoms to form SnO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(2)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-10°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Mn(2) and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Mg(1), two equivalent Mn(1), and one Sn(1) atom. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mn(1), one Mn(2), and one Sn(1) atom. is represented by the CIF file [CIF]
data_MgMn3SnO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.194
_cell_length_b   6.194
_cell_length_c   6.020
_cell_angle_alpha   59.703
_cell_angle_beta   59.705
_cell_angle_gamma   57.261
_symmetry_Int_Tables_number   1
_cell_volume   158.954
_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  0.000  0.000  0.000  1.0
  Mn  Mn1  1  0.000  0.500  0.500  1.0
  Mn  Mn2  1  0.500  0.000  0.500  1.0
  Mn  Mn3  1  0.500  0.500  0.000  1.0
  Sn  Sn4  1  0.500  0.500  0.500  1.0
  O  O5  1  0.281  0.281  0.258  1.0
  O  O6  1  0.257  0.257  0.712  1.0
  O  O7  1  0.270  0.727  0.232  1.0
  O  O8  1  0.727  0.270  0.232  1.0
  O  O9  1  0.273  0.730  0.768  1.0
  O  O10  1  0.730  0.273  0.768  1.0
  O  O11  1  0.743  0.743  0.288  1.0
  O  O12  1  0.719  0.719  0.742  1.0
[/CIF]
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