The structure described by Na2Mn(SO4)2 crystallizes in the monoclinic C2/c space group. Na(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), and three equivalent O(3) atoms. Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with six equivalent S(1)O4 tetrahedra. S(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SO4 tetrahedra that share corners with three equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-58°. There are four inequivalent O sites. In the first O site, O(4) is bonded in a 2-coordinate geometry to one Mn(1) and one S(1) atom. In the second O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one Mn(1), and one S(1) atom. In the third O site, O(2) is bonded in a 3-coordinate geometry to one Na(1), one Mn(1), and one S(1) atom. In the fourth O site, O(3) is bonded in a 4-coordinate geometry to three equivalent Na(1) and one S(1) atom. is represented by the CIF file [CIF]
data_Na2Mn(SO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.566
_cell_length_b   6.566
_cell_length_c   8.962
_cell_angle_alpha   69.067
_cell_angle_beta   110.933
_cell_angle_gamma   102.289
_symmetry_Int_Tables_number   1
_cell_volume   335.412
_cell_formula_units_Z   2
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
  Na  Na0  1  0.309  0.588  0.559  1.0
  Na  Na1  1  0.588  0.309  0.941  1.0
  Na  Na2  1  0.412  0.691  0.059  1.0
  Na  Na3  1  0.691  0.412  0.441  1.0
  Mn  Mn4  1  0.079  0.079  0.250  1.0
  Mn  Mn5  1  0.921  0.921  0.750  1.0
  S  S6  1  0.024  0.397  0.820  1.0
  S  S7  1  0.603  0.976  0.320  1.0
  S  S8  1  0.397  0.024  0.680  1.0
  S  S9  1  0.976  0.603  0.180  1.0
  O  O10  1  0.285  0.974  0.811  1.0
  O  O11  1  0.026  0.715  0.311  1.0
  O  O12  1  0.974  0.285  0.689  1.0
  O  O13  1  0.715  0.026  0.189  1.0
  O  O14  1  0.240  0.960  0.532  1.0
  O  O15  1  0.040  0.760  0.033  1.0
  O  O16  1  0.960  0.240  0.967  1.0
  O  O17  1  0.760  0.040  0.467  1.0
  O  O18  1  0.261  0.474  0.867  1.0
  O  O19  1  0.526  0.739  0.367  1.0
  O  O20  1  0.474  0.261  0.633  1.0
  O  O21  1  0.739  0.526  0.133  1.0
  O  O22  1  0.585  0.887  0.755  1.0
  O  O23  1  0.113  0.415  0.255  1.0
  O  O24  1  0.887  0.585  0.745  1.0
  O  O25  1  0.415  0.113  0.245  1.0
[/CIF]
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The structure described by Na2Mn(SO4)2 crystallizes in the monoclinic C2/c space group. Na(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), and three equivalent O(3) atoms. Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form MnO6 octahedra that share corners with six equivalent S(1)O4 tetrahedra. S(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SO4 tetrahedra that share corners with three equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-58°. There are four inequivalent O sites. In the first O site, O(4) is bonded in a 2-coordinate geometry to one Mn(1) and one S(1) atom. In the second O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one Mn(1), and one S(1) atom. In the third O site, O(2) is bonded in a 3-coordinate geometry to one Na(1), one Mn(1), and one S(1) atom. In the fourth O site, O(3) is bonded in a 4-coordinate geometry to three equivalent Na(1) and one S(1) atom. is represented by the CIF file [CIF]
data_Na2Mn(SO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.566
_cell_length_b   6.566
_cell_length_c   8.962
_cell_angle_alpha   69.067
_cell_angle_beta   110.933
_cell_angle_gamma   102.289
_symmetry_Int_Tables_number   1
_cell_volume   335.412
_cell_formula_units_Z   2
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
  Na  Na0  1  0.309  0.588  0.559  1.0
  Na  Na1  1  0.588  0.309  0.941  1.0
  Na  Na2  1  0.412  0.691  0.059  1.0
  Na  Na3  1  0.691  0.412  0.441  1.0
  Mn  Mn4  1  0.079  0.079  0.250  1.0
  Mn  Mn5  1  0.921  0.921  0.750  1.0
  S  S6  1  0.024  0.397  0.820  1.0
  S  S7  1  0.603  0.976  0.320  1.0
  S  S8  1  0.397  0.024  0.680  1.0
  S  S9  1  0.976  0.603  0.180  1.0
  O  O10  1  0.285  0.974  0.811  1.0
  O  O11  1  0.026  0.715  0.311  1.0
  O  O12  1  0.974  0.285  0.689  1.0
  O  O13  1  0.715  0.026  0.189  1.0
  O  O14  1  0.240  0.960  0.532  1.0
  O  O15  1  0.040  0.760  0.033  1.0
  O  O16  1  0.960  0.240  0.967  1.0
  O  O17  1  0.760  0.040  0.467  1.0
  O  O18  1  0.261  0.474  0.867  1.0
  O  O19  1  0.526  0.739  0.367  1.0
  O  O20  1  0.474  0.261  0.633  1.0
  O  O21  1  0.739  0.526  0.133  1.0
  O  O22  1  0.585  0.887  0.755  1.0
  O  O23  1  0.113  0.415  0.255  1.0
  O  O24  1  0.887  0.585  0.745  1.0
  O  O25  1  0.415  0.113  0.245  1.0
[/CIF]
.