data_[Tb1Nd1Mg1Ag1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  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 [P4mm]
_cell_length_a [3.8057]
_cell_length_b [3.8057]
_cell_length_c [7.3968]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [TbNdMgAg]
_chemical_formula_sum '[Tb1 Nd1 Mg1 Ag1]'
_cell_volume [107.1320]
_cell_formula_units_Z [1]
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
[
  Tb  Tb0  1  0.0000  0.0000  0.3464  1.0
  Nd  Nd1  1  0.0000  0.0000  0.8624  1.0
  Mg  Mg2  1  0.5000  0.5000  0.5965  1.0
  Ag  Ag3  1  0.5000  0.5000  0.1227  1.0
]