data_[Ce2Nd2Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Nd  1.1400  1.8500  1.2765
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.8747]
_cell_length_b [5.9364]
_cell_length_c [7.5447]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [CeNdAg2]
_chemical_formula_sum '[Ce2 Nd2 Ag4]'
_cell_volume [218.3317]
_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
[
  Ce  Ce0  2  0.0000  0.3841  0.6785  1
  Nd  Nd1  2  0.5000  0.1165  0.3209  1
  Ag  Ag2  2  0.0000  0.1119  0.0396  1
  Ag  Ag3  2  0.5000  0.3826  0.9610  1
]