data_[Sr4Tl12Ag2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Tl  1.6200  1.9000  1.3325
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.2068]
_cell_length_b [7.0977]
_cell_length_c [6.7034]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.6028]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sr2Tl6Ag]
_chemical_formula_sum '[Sr4 Tl12 Ag2]'
_cell_volume [553.5849]
_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  4  0.1485  0.5000  0.8214  1
  Tl  Tl1  8  0.1265  0.2733  0.3125  1
  Tl  Tl2  4  0.1273  0.0000  0.6917  1
  Ag  Ag3  2  0.0000  0.0000  0.0000  1
]