data_[Na1Li1Er2F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Li  0.9800  1.4500  0.9000
  Er  1.2400  1.7500  1.0300
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [5.4336]
_cell_length_b [3.7955]
_cell_length_c [7.5249]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.1503]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [NaLiEr2F8]
_chemical_formula_sum '[Na1 Li1 Er2 F8]'
_cell_volume [154.5585]
_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  0.0000  0.5000  1.0
  Li  Li1  1  0.0000  0.0000  0.0000  1.0
  Er  Er2  2  0.4715  0.5000  0.2458  1.0
  F  F3  2  0.2165  0.0000  0.2233  1.0
  F  F4  2  0.2608  0.5000  0.9767  1.0
  F  F5  2  0.2672  0.5000  0.4900  1.0
  F  F6  2  0.3156  0.0000  0.7371  1.0
]