data_[Sm4Si2Ag2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Si  1.9000  1.1000  0.5400
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.1087]
_cell_length_b [4.3871]
_cell_length_c [8.0823]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.3338]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Sm2SiAg]
_chemical_formula_sum '[Sm4 Si2 Ag2]'
_cell_volume [201.7581]
_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
[
  Sm  Sm0  2  0.2022  0.7500  0.4245  1.0
  Sm  Sm1  2  0.2215  0.7500  0.9305  1.0
  Si  Si2  2  0.3329  0.2500  0.7103  1.0
  Ag  Ag3  2  0.3601  0.2500  0.2187  1.0
]