data_[Na2Er2Co4F16]
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
  Co  1.8800  1.3500  0.7683
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [7.0188]
_cell_length_b [7.0950]
_cell_length_c [6.6643]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [NaErCo2F8]
_chemical_formula_sum '[Na2 Er2 Co4 F16]'
_cell_volume [331.8734]
_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  0.5000  1.0
  Er  Er1  2  0.0000  0.0000  0.0000  1.0
  Co  Co2  4  0.0000  0.5000  0.2610  1.0
  F  F3  8  0.2104  0.0000  0.2356  1.0
  F  F4  4  0.0000  0.3110  0.0000  1.0
  F  F5  4  0.0000  0.3187  0.5000  1.0
]