data_[Na8Eu2Ge4Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Eu  1.2000  1.8500  1.1985
  Ge  2.0100  1.2500  0.7700
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2]
_cell_length_a [7.2205]
_cell_length_b [12.4659]
_cell_length_c [8.0815]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.3456]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [5]
_chemical_formula_structural [Na4Eu(GeSe3)2]
_chemical_formula_sum '[Na8 Eu2 Ge4 Se12]'
_cell_volume [694.3268]
_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  0.1660  0.5000  1.0
  Na  Na1  2  0.0000  0.3268  0.0000  1.0
  Na  Na2  2  0.0000  0.6732  0.0000  1.0
  Na  Na3  2  0.0000  1.0000  0.0000  1.0
  Eu  Eu4  2  0.0000  0.8340  0.5000  1.0
  Ge  Ge5  4  0.0513  0.5000  0.6586  1.0
  Se  Se6  4  0.2344  0.4991  0.2503  1.0
  Se  Se7  4  0.2397  0.6594  0.7497  1.0
  Se  Se8  4  0.2424  0.3415  0.7493  1.0
]