data_[Nd2Si2Ag2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Si  1.9000  1.1000  0.5400
  Ag  1.9300  1.6000  1.0867
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.0796]
_cell_length_b [6.2211]
_cell_length_c [6.7123]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.8655]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [NdSiAgO4]
_chemical_formula_sum '[Nd2 Si2 Ag2 O8]'
_cell_volume [250.1167]
_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
[
  Nd  Nd0  2  0.1973  0.2500  0.5481  1.0
  Si  Si1  2  0.2800  0.7500  0.3503  1.0
  Ag  Ag2  2  0.4403  0.7500  0.8852  1.0
  O  O3  4  0.1086  0.5435  0.3349  1.0
  O  O4  2  0.4478  0.7500  0.5731  1.0
  O  O5  2  0.4696  0.7500  0.2016  1.0
]