data_[Er1Tm1Sn1Ru1]
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
  Sn  1.9600  1.4500  0.8300
  Ru  2.2000  1.3000  0.6610
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [3.3674]
_cell_length_b [3.3674]
_cell_length_c [8.0856]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [ErTmSnRu]
_chemical_formula_sum '[Er1 Tm1 Sn1 Ru1]'
_cell_volume [91.6846]
_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  0.5000  0.5000  0.7741  1.0
  Tm  Tm1  1  0.5000  0.5000  0.3684  1.0
  Sn  Sn2  1  0.0000  0.0000  0.0726  1.0
  Ru  Ru3  1  0.0000  0.0000  0.5695  1.0
]