The material structure described by Na4PtO4 crystallizes in the monoclinic C2/m space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a T-shaped geometry to one O(3) and two equivalent O(1) atoms. In the second Na site, Na(2) is bonded to one O(1), one O(2), one O(4), and two equivalent O(3) atoms to form NaO5 trigonal bipyramids that share  a cornercorner with one Na(4)O6 octahedra,  a cornercorner with one Pt(1)O6 octahedra, corners with two equivalent Na(2)O5 trigonal bipyramids, edges with three equivalent Na(4)O6 octahedra, and edges with three equivalent Pt(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-13°. In the third Na site, Na(3) is bonded in a see-saw-like geometry to one O(2), one O(3), and two equivalent O(1) atoms. In the fourth Na site, Na(4) is bonded to one O(3), two equivalent O(2), and three equivalent O(4) atoms to form distorted NaO6 octahedra that share  a cornercorner with one Pt(1)O6 octahedra, corners with two equivalent Na(4)O6 octahedra,  a cornercorner with one Na(2)O5 trigonal bipyramid, edges with three equivalent Na(4)O6 octahedra, edges with five equivalent Pt(1)O6 octahedra, and edges with three equivalent Na(2)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 16-17°. Pt(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form PtO6 octahedra that share  a cornercorner with one Na(4)O6 octahedra, corners with two equivalent Pt(1)O6 octahedra,  a cornercorner with one Na(2)O5 trigonal bipyramid,  an edgeedge with one Pt(1)O6 octahedra, edges with five equivalent Na(4)O6 octahedra, and edges with three equivalent Na(2)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 4-16°. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Na(2), two equivalent Na(1), two equivalent Na(3), and one Pt(1) atom to form ONa5Pt octahedra that share  a cornercorner with one O(2)Na4Pt2 octahedra,  a cornercorner with one O(4)Na4Pt2 octahedra,  a cornercorner with one O(3)Na5Pt octahedra, corners with two equivalent O(1)Na5Pt octahedra,  an edgeedge with one O(4)Na4Pt2 octahedra,  an edgeedge with one O(1)Na5Pt octahedra, edges with two equivalent O(2)Na4Pt2 octahedra, and edges with three equivalent O(3)Na5Pt octahedra. The corner-sharing octahedral tilt angles range from 2-17°. In the second O site, O(2) is bonded to one Na(2), one Na(3), two equivalent Na(4), and two equivalent Pt(1) atoms to form ONa4Pt2 octahedra that share  a cornercorner with one O(4)Na4Pt2 octahedra,  a cornercorner with one O(1)Na5Pt octahedra,  a cornercorner with one O(3)Na5Pt octahedra, corners with two equivalent O(2)Na4Pt2 octahedra,  an edgeedge with one O(2)Na4Pt2 octahedra, edges with two equivalent O(1)Na5Pt octahedra, edges with three equivalent O(3)Na5Pt octahedra, and edges with five equivalent O(4)Na4Pt2 octahedra. The corner-sharing octahedral tilt angles range from 4-10°. In the third O site, O(3) is bonded to one Na(1), one Na(3), one Na(4), two equivalent Na(2), and one Pt(1) atom to form distorted ONa5Pt octahedra that share  a cornercorner with one O(2)Na4Pt2 octahedra,  a cornercorner with one O(4)Na4Pt2 octahedra,  a cornercorner with one O(1)Na5Pt octahedra, corners with two equivalent O(3)Na5Pt octahedra, edges with three equivalent O(2)Na4Pt2 octahedra, edges with three equivalent O(4)Na4Pt2 octahedra, and edges with three equivalent O(1)Na5Pt octahedra. The corner-sharing octahedral tilt angles range from 2-26°. In the fourth O site, O(4) is bonded to one Na(2), three equivalent Na(4), and two equivalent Pt(1) atoms to form distorted ONa4Pt2 octahedra that share  a cornercorner with one O(2)Na4Pt2 octahedra,  a cornercorner with one O(1)Na5Pt octahedra,  a cornercorner with one O(3)Na5Pt octahedra, corners with two equivalent O(4)Na4Pt2 octahedra,  an edgeedge with one O(1)Na5Pt octahedra, edges with three equivalent O(4)Na4Pt2 octahedra, edges with three equivalent O(3)Na5Pt octahedra, and edges with five equivalent O(2)Na4Pt2 octahedra. The corner-sharing octahedral tilt angles range from 5-17°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na4PtO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.831
_cell_length_b   5.831
_cell_length_c   9.970
_cell_angle_alpha   88.305
_cell_angle_beta   88.305
_cell_angle_gamma   45.825
_symmetry_Int_Tables_number   1
_cell_volume   243.009
_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  0.372  0.372  0.956  1.0
  Na  Na1  1  0.628  0.628  0.044  1.0
  Na  Na2  1  0.258  0.258  0.273  1.0
  Na  Na3  1  0.927  0.927  0.177  1.0
  Na  Na4  1  0.853  0.853  0.453  1.0
  Na  Na5  1  0.147  0.147  0.547  1.0
  Na  Na6  1  0.073  0.073  0.823  1.0
  Na  Na7  1  0.742  0.742  0.727  1.0
  Pt  Pt8  1  0.548  0.548  0.345  1.0
  Pt  Pt9  1  0.452  0.452  0.655  1.0
  O  O10  1  0.456  0.456  0.164  1.0
  O  O11  1  0.056  0.056  0.342  1.0
  O  O12  1  0.718  0.718  0.245  1.0
  O  O13  1  0.618  0.618  0.536  1.0
  O  O14  1  0.382  0.382  0.464  1.0
  O  O15  1  0.282  0.282  0.755  1.0
  O  O16  1  0.944  0.944  0.658  1.0
  O  O17  1  0.544  0.544  0.836  1.0
[/CIF]
.
The material structure described by Na4PtO4 crystallizes in the monoclinic C2/m space group. There are four inequivalent Na sites. In the first Na site, Na(1) is bonded in a T-shaped geometry to one O(3) and two equivalent O(1) atoms. In the second Na site, Na(2) is bonded to one O(1), one O(2), one O(4), and two equivalent O(3) atoms to form NaO5 trigonal bipyramids that share  a cornercorner with one Na(4)O6 octahedra,  a cornercorner with one Pt(1)O6 octahedra, corners with two equivalent Na(2)O5 trigonal bipyramids, edges with three equivalent Na(4)O6 octahedra, and edges with three equivalent Pt(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-13°. In the third Na site, Na(3) is bonded in a see-saw-like geometry to one O(2), one O(3), and two equivalent O(1) atoms. In the fourth Na site, Na(4) is bonded to one O(3), two equivalent O(2), and three equivalent O(4) atoms to form distorted NaO6 octahedra that share  a cornercorner with one Pt(1)O6 octahedra, corners with two equivalent Na(4)O6 octahedra,  a cornercorner with one Na(2)O5 trigonal bipyramid, edges with three equivalent Na(4)O6 octahedra, edges with five equivalent Pt(1)O6 octahedra, and edges with three equivalent Na(2)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 16-17°. Pt(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form PtO6 octahedra that share  a cornercorner with one Na(4)O6 octahedra, corners with two equivalent Pt(1)O6 octahedra,  a cornercorner with one Na(2)O5 trigonal bipyramid,  an edgeedge with one Pt(1)O6 octahedra, edges with five equivalent Na(4)O6 octahedra, and edges with three equivalent Na(2)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 4-16°. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Na(2), two equivalent Na(1), two equivalent Na(3), and one Pt(1) atom to form ONa5Pt octahedra that share  a cornercorner with one O(2)Na4Pt2 octahedra,  a cornercorner with one O(4)Na4Pt2 octahedra,  a cornercorner with one O(3)Na5Pt octahedra, corners with two equivalent O(1)Na5Pt octahedra,  an edgeedge with one O(4)Na4Pt2 octahedra,  an edgeedge with one O(1)Na5Pt octahedra, edges with two equivalent O(2)Na4Pt2 octahedra, and edges with three equivalent O(3)Na5Pt octahedra. The corner-sharing octahedral tilt angles range from 2-17°. In the second O site, O(2) is bonded to one Na(2), one Na(3), two equivalent Na(4), and two equivalent Pt(1) atoms to form ONa4Pt2 octahedra that share  a cornercorner with one O(4)Na4Pt2 octahedra,  a cornercorner with one O(1)Na5Pt octahedra,  a cornercorner with one O(3)Na5Pt octahedra, corners with two equivalent O(2)Na4Pt2 octahedra,  an edgeedge with one O(2)Na4Pt2 octahedra, edges with two equivalent O(1)Na5Pt octahedra, edges with three equivalent O(3)Na5Pt octahedra, and edges with five equivalent O(4)Na4Pt2 octahedra. The corner-sharing octahedral tilt angles range from 4-10°. In the third O site, O(3) is bonded to one Na(1), one Na(3), one Na(4), two equivalent Na(2), and one Pt(1) atom to form distorted ONa5Pt octahedra that share  a cornercorner with one O(2)Na4Pt2 octahedra,  a cornercorner with one O(4)Na4Pt2 octahedra,  a cornercorner with one O(1)Na5Pt octahedra, corners with two equivalent O(3)Na5Pt octahedra, edges with three equivalent O(2)Na4Pt2 octahedra, edges with three equivalent O(4)Na4Pt2 octahedra, and edges with three equivalent O(1)Na5Pt octahedra. The corner-sharing octahedral tilt angles range from 2-26°. In the fourth O site, O(4) is bonded to one Na(2), three equivalent Na(4), and two equivalent Pt(1) atoms to form distorted ONa4Pt2 octahedra that share  a cornercorner with one O(2)Na4Pt2 octahedra,  a cornercorner with one O(1)Na5Pt octahedra,  a cornercorner with one O(3)Na5Pt octahedra, corners with two equivalent O(4)Na4Pt2 octahedra,  an edgeedge with one O(1)Na5Pt octahedra, edges with three equivalent O(4)Na4Pt2 octahedra, edges with three equivalent O(3)Na5Pt octahedra, and edges with five equivalent O(2)Na4Pt2 octahedra. The corner-sharing octahedral tilt angles range from 5-17°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na4PtO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.831
_cell_length_b   5.831
_cell_length_c   9.970
_cell_angle_alpha   88.305
_cell_angle_beta   88.305
_cell_angle_gamma   45.825
_symmetry_Int_Tables_number   1
_cell_volume   243.009
_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  0.372  0.372  0.956  1.0
  Na  Na1  1  0.628  0.628  0.044  1.0
  Na  Na2  1  0.258  0.258  0.273  1.0
  Na  Na3  1  0.927  0.927  0.177  1.0
  Na  Na4  1  0.853  0.853  0.453  1.0
  Na  Na5  1  0.147  0.147  0.547  1.0
  Na  Na6  1  0.073  0.073  0.823  1.0
  Na  Na7  1  0.742  0.742  0.727  1.0
  Pt  Pt8  1  0.548  0.548  0.345  1.0
  Pt  Pt9  1  0.452  0.452  0.655  1.0
  O  O10  1  0.456  0.456  0.164  1.0
  O  O11  1  0.056  0.056  0.342  1.0
  O  O12  1  0.718  0.718  0.245  1.0
  O  O13  1  0.618  0.618  0.536  1.0
  O  O14  1  0.382  0.382  0.464  1.0
  O  O15  1  0.282  0.282  0.755  1.0
  O  O16  1  0.944  0.944  0.658  1.0
  O  O17  1  0.544  0.544  0.836  1.0
[/CIF]
.