data_[Na2Er1U1Te4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Er  1.2400  1.7500  1.0300
  U  1.3800  1.7500  0.9913
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [7.6613]
_cell_length_b [4.4110]
_cell_length_c [8.0089]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.5964]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Na2ErUTe4]
_chemical_formula_sum '[Na2 Er1 U1 Te4]'
_cell_volume [256.5174]
_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
[
  Na  Na0  1  0.0000  0.5000  0.5000  1
  Na  Na1  1  0.5000  0.0000  0.5000  1
  Er  Er2  1  0.5000  0.5000  0.0000  1
  U  U3  1  0.0000  0.0000  0.0000  1
  Te  Te4  2  0.2501  0.5000  0.2351  1
  Te  Te5  2  0.2603  0.0000  0.7674  1
]