data_[Ce1Nd1Tl1Ag1]
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
  Tl  1.6200  1.9000  1.3325
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [3.7701]
_cell_length_b [3.7701]
_cell_length_c [8.3022]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [CeNdTlAg]
_chemical_formula_sum '[Ce1 Nd1 Tl1 Ag1]'
_cell_volume [118.0065]
_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
[
  Ce  Ce0  1  0.0000  0.0000  0.3692  1.0
  Nd  Nd1  1  0.0000  0.0000  0.8416  1.0
  Tl  Tl2  1  0.5000  0.5000  0.1086  1.0
  Ag  Ag3  1  0.5000  0.5000  0.6086  1.0
]