The structure described by Na3Pt is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to four equivalent Na(2) and four equivalent Pt(1) atoms to form distorted NaNa4Pt4 tetrahedra that share corners with eight equivalent Na(2)Na8Pt4 cuboctahedra, corners with eight equivalent Pt(1)Na12 cuboctahedra, corners with eight equivalent Na(1)Na4Pt4 tetrahedra, edges with four equivalent Na(2)Na8Pt4 cuboctahedra, edges with four equivalent Pt(1)Na12 cuboctahedra, edges with twelve equivalent Na(1)Na4Pt4 tetrahedra, and faces with six equivalent Na(1)Na4Pt4 tetrahedra. In the second Na site, Na(2) is bonded to eight equivalent Na(1) and four equivalent Pt(1) atoms to form NaNa8Pt4 cuboctahedra that share corners with four equivalent Na(2)Na8Pt4 cuboctahedra, corners with eight equivalent Pt(1)Na12 cuboctahedra, corners with sixteen equivalent Na(1)Na4Pt4 tetrahedra, edges with eight equivalent Na(2)Na8Pt4 cuboctahedra, edges with eight equivalent Na(1)Na4Pt4 tetrahedra, faces with four equivalent Na(2)Na8Pt4 cuboctahedra, and faces with six equivalent Pt(1)Na12 cuboctahedra. Pt(1) is bonded to four equivalent Na(2) and eight equivalent Na(1) atoms to form distorted PtNa12 cuboctahedra that share corners with four equivalent Pt(1)Na12 cuboctahedra, corners with eight equivalent Na(2)Na8Pt4 cuboctahedra, corners with sixteen equivalent Na(1)Na4Pt4 tetrahedra, edges with eight equivalent Pt(1)Na12 cuboctahedra, edges with eight equivalent Na(1)Na4Pt4 tetrahedra, faces with four equivalent Pt(1)Na12 cuboctahedra, and faces with six equivalent Na(2)Na8Pt4 cuboctahedra. is represented by the CIF file [CIF]
data_Na3Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.120
_cell_length_b   5.120
_cell_length_c   5.120
_cell_angle_alpha   124.179
_cell_angle_beta   124.179
_cell_angle_gamma   82.902
_symmetry_Int_Tables_number   1
_cell_volume   88.182
_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
  Na  Na0  1  0.750  0.250  0.500  1.0
  Na  Na1  1  0.250  0.750  0.500  1.0
  Na  Na2  1  0.500  0.500  0.000  1.0
  Pt  Pt3  1  0.000  0.000  0.000  1.0
[/CIF]
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The structure described by Na3Pt is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to four equivalent Na(2) and four equivalent Pt(1) atoms to form distorted NaNa4Pt4 tetrahedra that share corners with eight equivalent Na(2)Na8Pt4 cuboctahedra, corners with eight equivalent Pt(1)Na12 cuboctahedra, corners with eight equivalent Na(1)Na4Pt4 tetrahedra, edges with four equivalent Na(2)Na8Pt4 cuboctahedra, edges with four equivalent Pt(1)Na12 cuboctahedra, edges with twelve equivalent Na(1)Na4Pt4 tetrahedra, and faces with six equivalent Na(1)Na4Pt4 tetrahedra. In the second Na site, Na(2) is bonded to eight equivalent Na(1) and four equivalent Pt(1) atoms to form NaNa8Pt4 cuboctahedra that share corners with four equivalent Na(2)Na8Pt4 cuboctahedra, corners with eight equivalent Pt(1)Na12 cuboctahedra, corners with sixteen equivalent Na(1)Na4Pt4 tetrahedra, edges with eight equivalent Na(2)Na8Pt4 cuboctahedra, edges with eight equivalent Na(1)Na4Pt4 tetrahedra, faces with four equivalent Na(2)Na8Pt4 cuboctahedra, and faces with six equivalent Pt(1)Na12 cuboctahedra. Pt(1) is bonded to four equivalent Na(2) and eight equivalent Na(1) atoms to form distorted PtNa12 cuboctahedra that share corners with four equivalent Pt(1)Na12 cuboctahedra, corners with eight equivalent Na(2)Na8Pt4 cuboctahedra, corners with sixteen equivalent Na(1)Na4Pt4 tetrahedra, edges with eight equivalent Pt(1)Na12 cuboctahedra, edges with eight equivalent Na(1)Na4Pt4 tetrahedra, faces with four equivalent Pt(1)Na12 cuboctahedra, and faces with six equivalent Na(2)Na8Pt4 cuboctahedra. is represented by the CIF file [CIF]
data_Na3Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.120
_cell_length_b   5.120
_cell_length_c   5.120
_cell_angle_alpha   124.179
_cell_angle_beta   124.179
_cell_angle_gamma   82.902
_symmetry_Int_Tables_number   1
_cell_volume   88.182
_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
  Na  Na0  1  0.750  0.250  0.500  1.0
  Na  Na1  1  0.250  0.750  0.500  1.0
  Na  Na2  1  0.500  0.500  0.000  1.0
  Pt  Pt3  1  0.000  0.000  0.000  1.0
[/CIF]
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