data_[Sr4Si2Ag2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  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 [6.2206]
_cell_length_b [4.6626]
_cell_length_c [8.8913]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.2207]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Sr2SiAg]
_chemical_formula_sum '[Sr4 Si2 Ag2]'
_cell_volume [243.5080]
_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
[
  Sr  Sr0  2  0.2050  0.2500  0.4304  1.0
  Sr  Sr1  2  0.2822  0.7500  0.0726  1.0
  Si  Si2  2  0.1557  0.2500  0.7834  1.0
  Ag  Ag3  2  0.3327  0.7500  0.7259  1.0
]