data_[Er2Tm2Tl2Ni4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
  Tl  1.6200  1.9000  1.3325
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [3.6569]
_cell_length_b [3.8517]
_cell_length_c [14.3956]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [ErTmTlNi2]
_chemical_formula_sum '[Er2 Tm2 Tl2 Ni4]'
_cell_volume [202.7699]
_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
[
  Er  Er0  2  0.0000  0.0000  0.3600  1
  Tm  Tm1  2  0.0000  0.0000  0.6400  1
  Tl  Tl2  2  0.5000  0.0000  0.0000  1
  Ni  Ni3  2  0.5000  0.0000  0.2005  1
  Ni  Ni4  2  0.5000  0.0000  0.7994  1
]