data_[Nd4Mg12Ag8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Mg  1.3100  1.5000  0.8600
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.3933]
_cell_length_b [4.6659]
_cell_length_c [8.0247]
_cell_angle_alpha [90.0000]
_cell_angle_beta [114.2268]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NdMg3Ag2]
_chemical_formula_sum '[Nd4 Mg12 Ag8]'
_cell_volume [559.7476]
_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  0.1248  0.0000  0.1892  1
  Mg  Mg1  4  0.0584  0.0000  0.7015  1
  Mg  Mg2  4  0.1309  0.5000  0.5027  1
  Mg  Mg3  4  0.1913  0.5000  0.9181  1
  Ag  Ag4  4  0.0136  0.5000  0.8397  1
  Ag  Ag5  4  0.2264  0.0000  0.6868  1
]