data_[Nd1Sm7Er4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Sm  1.1700  1.8500  1.2290
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [6.2690]
_cell_length_b [7.2420]
_cell_length_c [8.9235]
_cell_angle_alpha [89.9982]
_cell_angle_beta [103.5705]
_cell_angle_gamma [89.9975]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [NdSm7Er4]
_chemical_formula_sum '[Nd1 Sm7 Er4]'
_cell_volume [393.8183]
_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
[
  Nd  Nd0  1  0.0000  0.0000  0.0000  1
  Sm  Sm1  2  0.2230  0.9998  0.6651  1
  Sm  Sm2  2  0.2798  0.2518  0.3360  1
  Sm  Sm3  2  0.4996  0.7468  0.0014  1
  Sm  Sm4  1  0.0000  0.5000  0.0000  1
  Er  Er5  2  0.2196  0.5000  0.6646  1
  Er  Er6  2  0.2778  0.7465  0.3347  1
]