data_[Er1Tl2F1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Tl  1.6200  1.9000  1.3325
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P-6m2]
_cell_length_a [3.8140]
_cell_length_b [3.8140]
_cell_length_c [20.6556]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [187]
_chemical_formula_structural [ErTl2F]
_chemical_formula_sum '[Er1 Tl2 F1]'
_cell_volume [260.2151]
_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
[
  Er  Er0  1  0.6667  0.3333  0.5000  1
  Tl  Tl1  2  0.3333  0.6667  0.6369  1
  F  F2  1  0.0000  0.0000  0.5000  1
]