data_[Sm4Ag4Se4O4]
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
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1]
_cell_length_a [5.8239]
_cell_length_b [5.8272]
_cell_length_c [11.3549]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.4391]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [4]
_chemical_formula_structural [SmAgSeO]
_chemical_formula_sum '[Sm4 Ag4 Se4 O4]'
_cell_volume [385.0035]
_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  2  0.0065  0.3194  0.0959  1
  Sm  Sm1  2  0.4927  0.3199  0.9035  1
  Ag  Ag2  2  0.1915  0.5963  0.4963  1
  Ag  Ag3  2  0.4986  0.3418  0.2943  1
  Se  Se4  2  0.1967  0.6419  0.2802  1
  Se  Se5  2  0.2010  0.5440  0.7121  1
  O  O6  2  0.2498  0.0687  0.0002  1
  O  O7  2  0.2520  0.5680  0.9992  1
]