data_[Hg6P6S18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Hg  2.0000  1.5000  1.2450
  P  2.1900  1.0000  0.5500
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [6.4001]
_cell_length_b [6.4001]
_cell_length_c [21.5339]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [HgPS3]
_chemical_formula_sum '[Hg6 P6 S18]'
_cell_volume [763.8953]
_cell_formula_units_Z [6]
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
[
  Hg  Hg0  6  0.0000  0.0000  0.2692  1.0
  P  P1  6  0.0000  0.0000  0.0529  1.0
  S  S2  18  0.0044  0.3933  0.7474  1.0
]