The compound described by NaS crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to six equivalent S(1) atoms to form edge-sharing NaS6 octahedra. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to six equivalent S(1) atoms. S(1) is bonded in a 7-coordinate geometry to three equivalent Na(1), three equivalent Na(2), and one S(1) atom. is represented by the CIF file [CIF]
data_NaS
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.452
_cell_length_b   4.452
_cell_length_c   10.176
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   174.631
_cell_formula_units_Z   4
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  0.000  0.000  0.000  1.0
  Na  Na1  1  0.000  0.000  0.500  1.0
  Na  Na2  1  0.333  0.667  0.250  1.0
  Na  Na3  1  0.667  0.333  0.750  1.0
  S  S4  1  0.333  0.667  0.644  1.0
  S  S5  1  0.667  0.333  0.144  1.0
  S  S6  1  0.667  0.333  0.356  1.0
  S  S7  1  0.333  0.667  0.856  1.0
[/CIF]
.
The compound described by NaS crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to six equivalent S(1) atoms to form edge-sharing NaS6 octahedra. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to six equivalent S(1) atoms. S(1) is bonded in a 7-coordinate geometry to three equivalent Na(1), three equivalent Na(2), and one S(1) atom. is represented by the CIF file [CIF]
data_NaS
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.452
_cell_length_b   4.452
_cell_length_c   10.176
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   174.631
_cell_formula_units_Z   4
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  0.000  0.000  0.000  1.0
  Na  Na1  1  0.000  0.000  0.500  1.0
  Na  Na2  1  0.333  0.667  0.250  1.0
  Na  Na3  1  0.667  0.333  0.750  1.0
  S  S4  1  0.333  0.667  0.644  1.0
  S  S5  1  0.667  0.333  0.144  1.0
  S  S6  1  0.667  0.333  0.356  1.0
  S  S7  1  0.333  0.667  0.856  1.0
[/CIF]
.