data_[Sm4Te1Pb1Se2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Te  2.1000  1.4000  1.2933
  Pb  2.3300  1.8000  1.1225
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [7.5011]
_cell_length_b [4.3323]
_cell_length_c [7.5304]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.3779]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Sm4TePbSe2]
_chemical_formula_sum '[Sm4 Te1 Pb1 Se2]'
_cell_volume [230.8519]
_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
[
  Sm  Sm0  2  0.2387  0.5000  0.2299  1.0
  Sm  Sm1  2  0.2529  0.0000  0.7670  1.0
  Te  Te2  1  0.5000  0.0000  0.5000  1.0
  Pb  Pb3  1  0.0000  0.5000  0.5000  1.0
  Se  Se4  1  0.0000  0.0000  0.0000  1.0
  Se  Se5  1  0.5000  0.5000  0.0000  1.0
]