data_[Y4Mg2Ag6Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Mg  1.3100  1.5000  0.8600
  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 [19.4847]
_cell_length_b [4.0667]
_cell_length_c [7.6131]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.6985]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Y2Mg(AgSe2)3]
_chemical_formula_sum '[Y4 Mg2 Ag6 Se12]'
_cell_volume [586.0925]
_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
[
  Y  Y0  4  0.1616  0.0000  0.3391  1.0
  Mg  Mg1  2  0.0000  0.5000  0.0000  1.0
  Ag  Ag2  4  0.1481  0.0000  0.8257  1.0
  Ag  Ag3  2  0.0000  0.5000  0.5000  1.0
  Se  Se4  4  0.0081  0.0000  0.2680  1.0
  Se  Se5  4  0.1418  0.5000  0.0691  1.0
  Se  Se6  4  0.1861  0.5000  0.6148  1.0
]