data_[Sm4Ag4Ge4Te4Se8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Ag  1.9300  1.6000  1.0867
  Ge  2.0100  1.2500  0.7700
  Te  2.1000  1.4000  1.2933
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.0779]
_cell_length_b [13.6995]
_cell_length_c [11.3394]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [SmAgGeTeSe2]
_chemical_formula_sum '[Sm4 Ag4 Ge4 Te4 Se8]'
_cell_volume [633.4716]
_cell_formula_units_Z [4]
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  4  0.0000  0.5000  0.0000  1
  Ag  Ag1  4  0.0000  0.0212  0.2500  1
  Ge  Ge2  4  0.0000  0.2931  0.7500  1
  Te  Te3  4  0.0000  0.3791  0.2500  1
  Se  Se4  8  0.0000  0.1433  0.0708  1
]