The structure described by Na3Cl2 crystallizes in the tetragonal P4/m space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to two equivalent Na(3) and six equivalent Cl(1) atoms. In the second Na site, Na(2) is bonded in a body-centered cubic geometry to eight equivalent Cl(1) atoms. In the third Na site, Na(3) is bonded in a 10-coordinate geometry to two equivalent Na(3) and eight equivalent Na(1) atoms. Cl(1) is bonded in a body-centered cubic geometry to two equivalent Na(2) and six equivalent Na(1) atoms. is represented by the CIF file [CIF]
data_Na3Cl2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.091
_cell_length_b   8.091
_cell_length_c   3.705
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   242.579
_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  0.885  0.326  0.500  1.0
  Na  Na1  1  0.115  0.674  0.500  1.0
  Na  Na2  1  0.674  0.885  0.500  1.0
  Na  Na3  1  0.326  0.115  0.500  1.0
  Na  Na4  1  0.500  0.500  0.500  1.0
  Na  Na5  1  0.000  0.000  0.000  1.0
  Cl  Cl6  1  0.797  0.595  0.000  1.0
  Cl  Cl7  1  0.203  0.405  0.000  1.0
  Cl  Cl8  1  0.405  0.797  0.000  1.0
  Cl  Cl9  1  0.595  0.203  0.000  1.0
[/CIF]
.
The structure described by Na3Cl2 crystallizes in the tetragonal P4/m space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to two equivalent Na(3) and six equivalent Cl(1) atoms. In the second Na site, Na(2) is bonded in a body-centered cubic geometry to eight equivalent Cl(1) atoms. In the third Na site, Na(3) is bonded in a 10-coordinate geometry to two equivalent Na(3) and eight equivalent Na(1) atoms. Cl(1) is bonded in a body-centered cubic geometry to two equivalent Na(2) and six equivalent Na(1) atoms. is represented by the CIF file [CIF]
data_Na3Cl2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.091
_cell_length_b   8.091
_cell_length_c   3.705
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   242.579
_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  0.885  0.326  0.500  1.0
  Na  Na1  1  0.115  0.674  0.500  1.0
  Na  Na2  1  0.674  0.885  0.500  1.0
  Na  Na3  1  0.326  0.115  0.500  1.0
  Na  Na4  1  0.500  0.500  0.500  1.0
  Na  Na5  1  0.000  0.000  0.000  1.0
  Cl  Cl6  1  0.797  0.595  0.000  1.0
  Cl  Cl7  1  0.203  0.405  0.000  1.0
  Cl  Cl8  1  0.405  0.797  0.000  1.0
  Cl  Cl9  1  0.595  0.203  0.000  1.0
[/CIF]
.