data_[Er4Cu2Pt2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Cu  1.9000  1.3500  0.8200
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [Pmn2_1]
_cell_length_a [4.4568]
_cell_length_b [7.0119]
_cell_length_c [5.4432]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [Er2CuPt]
_chemical_formula_sum '[Er4 Cu2 Pt2]'
_cell_volume [170.1038]
_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  0.4361  0.8615  1
  Er  Er1  2  0.0000  0.9286  0.6382  1
  Cu  Cu2  2  0.0000  0.7909  0.1401  1
  Pt  Pt3  2  0.0000  0.2849  0.3602  1
]