data_[Na2Sr1Cu2Te4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sr  0.9500  2.0000  1.3200
  Cu  1.9000  1.3500  0.8200
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [4.4863]
_cell_length_b [6.7746]
_cell_length_c [9.0290]
_cell_angle_alpha [105.0967]
_cell_angle_beta [100.4973]
_cell_angle_gamma [95.6032]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Na2Sr(CuTe2)2]
_chemical_formula_sum '[Na2 Sr1 Cu2 Te4]'
_cell_volume [257.4517]
_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  2  0.0877  0.6088  0.3326  1.0
  Sr  Sr1  1  0.0000  0.0000  0.0000  1.0
  Cu  Cu2  2  0.2353  0.0133  0.6095  1.0
  Te  Te3  2  0.2894  0.1849  0.3769  1.0
  Te  Te4  2  0.4865  0.7016  0.1066  1.0
]