data_[Na4Er4Cu4Te12]
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
  Cu  1.9000  1.3500  0.8200
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [11.2015]
_cell_length_b [4.1273]
_cell_length_c [14.8190]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [NaErCuTe3]
_chemical_formula_sum '[Na4 Er4 Cu4 Te12]'
_cell_volume [685.1163]
_cell_formula_units_Z [4]
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  4  0.2234  0.2500  0.4924  1
  Er  Er1  4  0.0191  0.7500  0.7547  1
  Cu  Cu2  4  0.2361  0.7500  0.2792  1
  Te  Te3  4  0.0489  0.7500  0.3858  1
  Te  Te4  4  0.0868  0.2500  0.8944  1
  Te  Te5  4  0.2334  0.2500  0.1669  1
]