data_[Nd4Er12Ag8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Er  1.2400  1.7500  1.0300
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.6479]
_cell_length_b [5.3004]
_cell_length_c [8.6956]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.4681]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NdEr3Ag2]
_chemical_formula_sum '[Nd4 Er12 Ag8]'
_cell_volume [651.1269]
_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  0.1378  0.0000  0.1943  1.0
  Er  Er1  4  0.0620  0.0000  0.7259  1.0
  Er  Er2  4  0.1186  0.5000  0.5277  1.0
  Er  Er3  4  0.1911  0.5000  0.9947  1.0
  Ag  Ag4  4  0.0121  0.5000  0.1666  1.0
  Ag  Ag5  4  0.2279  0.0000  0.6119  1.0
]