data_[Er8Tl4Ni4]
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
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [7.3452]
_cell_length_b [7.1048]
_cell_length_c [7.3304]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [Er2TlNi]
_chemical_formula_sum '[Er8 Tl4 Ni4]'
_cell_volume [382.5450]
_cell_formula_units_Z [4]
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  8  0.1767  0.0033  0.8224  1.0
  Tl  Tl1  4  0.0021  0.2500  0.5008  1.0
  Ni  Ni2  4  0.1113  0.7500  0.1084  1.0
]