data_[Sb4Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sb  2.0500  1.4500  0.8300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmm2]
_cell_length_a [5.8458]
_cell_length_b [9.5626]
_cell_length_c [18.8082]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [35]
_chemical_formula_structural [Sb2Se3]
_chemical_formula_sum '[Sb4 Se6]'
_cell_volume [1051.3922]
_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
[
  Sb  Sb0  4  0.0000  0.2423  0.4590  1
  Se  Se1  4  0.0000  0.2222  0.5948  1
  Se  Se2  2  0.0000  0.0000  0.3923  1
]