data_[Ca4Y4Ag4Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Y  1.2200  1.8000  1.0400
  Ag  1.9300  1.6000  1.0867
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.0018]
_cell_length_b [4.0325]
_cell_length_c [8.4679]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.1885]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [CaYAgSe3]
_chemical_formula_sum '[Ca4 Y4 Ag4 Se12]'
_cell_volume [598.4851]
_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
[
  Ca  Ca0  4  0.1285  0.0000  0.0737  1
  Y  Y1  4  0.1659  0.0000  0.5933  1
  Ag  Ag2  4  0.0345  0.5000  0.7157  1
  Se  Se3  4  0.1701  0.5000  0.3529  1
  Se  Se4  4  0.1863  0.5000  0.8427  1
  Se  Se5  2  0.0000  0.0000  0.5000  1
  Se  Se6  2  0.0000  0.5000  0.0000  1
]