data_[Nd8Y4Ag4Se20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  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 [Cmc2_1]
_cell_length_a [4.1604]
_cell_length_b [17.5660]
_cell_length_c [12.5467]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Nd2YAgSe5]
_chemical_formula_sum '[Nd8 Y4 Ag4 Se20]'
_cell_volume [916.9382]
_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
[
  Nd  Nd0  4  0.0000  0.3749  0.8054  1.0
  Nd  Nd1  4  0.0000  0.3899  0.1857  1.0
  Y  Y2  4  0.0000  0.3043  0.5089  1.0
  Ag  Ag3  4  0.0000  0.0566  0.9594  1.0
  Se  Se4  4  0.0000  0.0023  0.2726  1.0
  Se  Se5  4  0.0000  0.1406  0.5001  1.0
  Se  Se6  4  0.0000  0.1940  0.8447  1.0
  Se  Se7  4  0.0000  0.2138  0.1677  1.0
  Se  Se8  4  0.0000  0.4542  0.5794  1.0
]