The crystal structure described by NaSS crystallizes in the tetragonal I-42d space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to two equivalent S(2) and four equivalent S(1) atoms. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to two equivalent S(2) and four equivalent S(1) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to two equivalent Na(1), two equivalent Na(2), and one S(2) atom. In the second S site, S(2) is bonded in a 4-coordinate geometry to one Na(1), one Na(2), one S(1), and one S(2) atom. is represented by the CIF file [CIF]
data_NaS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.938
_cell_length_b   8.938
_cell_length_c   8.938
_cell_angle_alpha   98.562
_cell_angle_beta   115.186
_cell_angle_gamma   115.186
_symmetry_Int_Tables_number   1
_cell_volume   535.223
_cell_formula_units_Z   8
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  0.172  0.172  1.0
  Na  Na1  1  0.000  0.828  0.828  1.0
  Na  Na2  1  0.500  0.578  0.078  1.0
  Na  Na3  1  0.500  0.922  0.422  1.0
  Na  Na4  1  0.523  0.375  0.398  1.0
  Na  Na5  1  0.977  0.602  0.125  1.0
  Na  Na6  1  0.023  0.148  0.625  1.0
  Na  Na7  1  0.477  0.875  0.852  1.0
  S  S8  1  0.284  0.548  0.328  1.0
  S  S9  1  0.220  0.672  0.956  1.0
  S  S10  1  0.780  0.736  0.452  1.0
  S  S11  1  0.720  0.706  0.922  1.0
  S  S12  1  0.280  0.202  0.986  1.0
  S  S13  1  0.716  0.044  0.264  1.0
  S  S14  1  0.784  0.078  0.798  1.0
  S  S15  1  0.216  0.014  0.294  1.0
  S  S16  1  0.263  0.514  0.544  1.0
  S  S17  1  0.970  0.456  0.718  1.0
  S  S18  1  0.030  0.749  0.486  1.0
  S  S19  1  0.470  0.468  0.706  1.0
  S  S20  1  0.530  0.236  0.999  1.0
  S  S21  1  0.737  0.282  0.251  1.0
  S  S22  1  0.763  0.294  0.764  1.0
  S  S23  1  0.237  0.001  0.532  1.0
[/CIF]
.
The crystal structure described by NaSS crystallizes in the tetragonal I-42d space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to two equivalent S(2) and four equivalent S(1) atoms. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to two equivalent S(2) and four equivalent S(1) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to two equivalent Na(1), two equivalent Na(2), and one S(2) atom. In the second S site, S(2) is bonded in a 4-coordinate geometry to one Na(1), one Na(2), one S(1), and one S(2) atom. is represented by the CIF file [CIF]
data_NaS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.938
_cell_length_b   8.938
_cell_length_c   8.938
_cell_angle_alpha   98.562
_cell_angle_beta   115.186
_cell_angle_gamma   115.186
_symmetry_Int_Tables_number   1
_cell_volume   535.223
_cell_formula_units_Z   8
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  0.172  0.172  1.0
  Na  Na1  1  0.000  0.828  0.828  1.0
  Na  Na2  1  0.500  0.578  0.078  1.0
  Na  Na3  1  0.500  0.922  0.422  1.0
  Na  Na4  1  0.523  0.375  0.398  1.0
  Na  Na5  1  0.977  0.602  0.125  1.0
  Na  Na6  1  0.023  0.148  0.625  1.0
  Na  Na7  1  0.477  0.875  0.852  1.0
  S  S8  1  0.284  0.548  0.328  1.0
  S  S9  1  0.220  0.672  0.956  1.0
  S  S10  1  0.780  0.736  0.452  1.0
  S  S11  1  0.720  0.706  0.922  1.0
  S  S12  1  0.280  0.202  0.986  1.0
  S  S13  1  0.716  0.044  0.264  1.0
  S  S14  1  0.784  0.078  0.798  1.0
  S  S15  1  0.216  0.014  0.294  1.0
  S  S16  1  0.263  0.514  0.544  1.0
  S  S17  1  0.970  0.456  0.718  1.0
  S  S18  1  0.030  0.749  0.486  1.0
  S  S19  1  0.470  0.468  0.706  1.0
  S  S20  1  0.530  0.236  0.999  1.0
  S  S21  1  0.737  0.282  0.251  1.0
  S  S22  1  0.763  0.294  0.764  1.0
  S  S23  1  0.237  0.001  0.532  1.0
[/CIF]
.