data_[Sn1Bi1Se1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sn  1.9600  1.4500  0.8300
  Bi  2.0200  1.6000  1.0350
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P3m1]
_cell_length_a [3.7903]
_cell_length_b [3.7903]
_cell_length_c [6.8399]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [156]
_chemical_formula_structural [SnBiSe]
_chemical_formula_sum '[Sn1 Bi1 Se1]'
_cell_volume [85.1000]
_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
[
  Sn  Sn0  1  0.6667  0.3333  0.2926  1
  Bi  Bi1  1  0.3333  0.6667  0.6690  1
  Se  Se2  1  0.0000  0.0000  0.0384  1
]