data_[Na2Cu10Te8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Cu  1.9000  1.3500  0.8200
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [Pmmn]
_cell_length_a [8.5292]
_cell_length_b [9.4541]
_cell_length_c [5.4979]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [59]
_chemical_formula_structural [NaCu5Te4]
_chemical_formula_sum '[Na2 Cu10 Te8]'
_cell_volume [443.3289]
_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
[
  Na  Na0  2  0.0000  0.0000  0.0068  1
  Cu  Cu1  8  0.2324  0.2560  0.2580  1
  Cu  Cu2  2  0.0000  0.5000  0.3039  1
  Te  Te3  4  0.0000  0.3089  0.9584  1
  Te  Te4  4  0.2212  0.0000  0.5004  1
]