The structure described by Na6MnO4 crystallizes in the orthorhombic Cmc2_1 space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a 3-coordinate geometry to one O(1) and four equivalent O(2) atoms. In the second Na site, Na(2) is bonded in a 3-coordinate geometry to one O(1), two equivalent O(2), and two equivalent O(3) atoms. In the third Na site, Na(3) is bonded to one O(1), one O(3), and two equivalent O(2) atoms to form distorted NaO4 trigonal pyramids that share corners with two equivalent Mn(1)O4 tetrahedra, corners with four equivalent Na(3)O4 trigonal pyramids, corners with four equivalent Na(4)O4 trigonal pyramids, and  an edgeedge with one Mn(1)O4 tetrahedra. In the fourth Na site, Na(4) is bonded to one O(1), one O(3), and two equivalent O(2) atoms to form distorted NaO4 trigonal pyramids that share corners with two equivalent Mn(1)O4 tetrahedra, corners with eight equivalent Na(3)O4 trigonal pyramids, and  an edgeedge with one Mn(1)O4 tetrahedra. Mn(1) is bonded to one O(1), one O(3), and two equivalent O(2) atoms to form MnO4 tetrahedra that share corners with two equivalent Na(4)O4 trigonal pyramids, corners with four equivalent Na(3)O4 trigonal pyramids,  an edgeedge with one Na(4)O4 trigonal pyramid, and edges with two equivalent Na(3)O4 trigonal pyramids. There are three inequivalent O sites. In the first O site, O(3) is bonded in a 8-coordinate geometry to one Na(4), two equivalent Na(3), four equivalent Na(2), and one Mn(1) atom. In the second O site, O(1) is bonded in a 7-coordinate geometry to one Na(1), one Na(4), two equivalent Na(2), two equivalent Na(3), and one Mn(1) atom. In the third O site, O(2) is bonded in a 8-coordinate geometry to one Na(4), two equivalent Na(1), two equivalent Na(2), two equivalent Na(3), and one Mn(1) atom. is represented by the CIF file [CIF]
data_Na6MnO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.843
_cell_length_b   7.608
_cell_length_c   7.609
_cell_angle_alpha   119.995
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   292.913
_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
  Mn  Mn0  1  0.748  0.667  0.334  1.0
  Mn  Mn1  1  0.248  0.333  0.666  1.0
  Na  Na2  1  0.142  0.538  0.076  1.0
  Na  Na3  1  0.643  0.463  0.539  1.0
  Na  Na4  1  0.143  0.924  0.461  1.0
  Na  Na5  1  0.143  0.537  0.461  1.0
  Na  Na6  1  0.643  0.076  0.539  1.0
  Na  Na7  1  0.642  0.462  0.924  1.0
  Na  Na8  1  0.974  0.140  0.860  1.0
  Na  Na9  1  0.474  0.280  0.140  1.0
  Na  Na10  1  0.474  0.859  0.719  1.0
  Na  Na11  1  0.474  0.860  0.140  1.0
  Na  Na12  1  0.974  0.720  0.860  1.0
  Na  Na13  1  0.974  0.141  0.281  1.0
  O  O14  1  0.405  0.667  0.333  1.0
  O  O15  1  0.905  0.333  0.667  1.0
  O  O16  1  0.364  0.187  0.813  1.0
  O  O17  1  0.864  0.374  0.187  1.0
  O  O18  1  0.864  0.813  0.626  1.0
  O  O19  1  0.364  0.187  0.374  1.0
  O  O20  1  0.364  0.626  0.813  1.0
  O  O21  1  0.864  0.813  0.187  1.0
[/CIF]
.
The structure described by Na6MnO4 crystallizes in the orthorhombic Cmc2_1 space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a 3-coordinate geometry to one O(1) and four equivalent O(2) atoms. In the second Na site, Na(2) is bonded in a 3-coordinate geometry to one O(1), two equivalent O(2), and two equivalent O(3) atoms. In the third Na site, Na(3) is bonded to one O(1), one O(3), and two equivalent O(2) atoms to form distorted NaO4 trigonal pyramids that share corners with two equivalent Mn(1)O4 tetrahedra, corners with four equivalent Na(3)O4 trigonal pyramids, corners with four equivalent Na(4)O4 trigonal pyramids, and  an edgeedge with one Mn(1)O4 tetrahedra. In the fourth Na site, Na(4) is bonded to one O(1), one O(3), and two equivalent O(2) atoms to form distorted NaO4 trigonal pyramids that share corners with two equivalent Mn(1)O4 tetrahedra, corners with eight equivalent Na(3)O4 trigonal pyramids, and  an edgeedge with one Mn(1)O4 tetrahedra. Mn(1) is bonded to one O(1), one O(3), and two equivalent O(2) atoms to form MnO4 tetrahedra that share corners with two equivalent Na(4)O4 trigonal pyramids, corners with four equivalent Na(3)O4 trigonal pyramids,  an edgeedge with one Na(4)O4 trigonal pyramid, and edges with two equivalent Na(3)O4 trigonal pyramids. There are three inequivalent O sites. In the first O site, O(3) is bonded in a 8-coordinate geometry to one Na(4), two equivalent Na(3), four equivalent Na(2), and one Mn(1) atom. In the second O site, O(1) is bonded in a 7-coordinate geometry to one Na(1), one Na(4), two equivalent Na(2), two equivalent Na(3), and one Mn(1) atom. In the third O site, O(2) is bonded in a 8-coordinate geometry to one Na(4), two equivalent Na(1), two equivalent Na(2), two equivalent Na(3), and one Mn(1) atom. is represented by the CIF file [CIF]
data_Na6MnO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.843
_cell_length_b   7.608
_cell_length_c   7.609
_cell_angle_alpha   119.995
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   292.913
_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
  Mn  Mn0  1  0.748  0.667  0.334  1.0
  Mn  Mn1  1  0.248  0.333  0.666  1.0
  Na  Na2  1  0.142  0.538  0.076  1.0
  Na  Na3  1  0.643  0.463  0.539  1.0
  Na  Na4  1  0.143  0.924  0.461  1.0
  Na  Na5  1  0.143  0.537  0.461  1.0
  Na  Na6  1  0.643  0.076  0.539  1.0
  Na  Na7  1  0.642  0.462  0.924  1.0
  Na  Na8  1  0.974  0.140  0.860  1.0
  Na  Na9  1  0.474  0.280  0.140  1.0
  Na  Na10  1  0.474  0.859  0.719  1.0
  Na  Na11  1  0.474  0.860  0.140  1.0
  Na  Na12  1  0.974  0.720  0.860  1.0
  Na  Na13  1  0.974  0.141  0.281  1.0
  O  O14  1  0.405  0.667  0.333  1.0
  O  O15  1  0.905  0.333  0.667  1.0
  O  O16  1  0.364  0.187  0.813  1.0
  O  O17  1  0.864  0.374  0.187  1.0
  O  O18  1  0.864  0.813  0.626  1.0
  O  O19  1  0.364  0.187  0.374  1.0
  O  O20  1  0.364  0.626  0.813  1.0
  O  O21  1  0.864  0.813  0.187  1.0
[/CIF]
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