data_[Pm7Sm3Er2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Sm  1.1700  1.8500  1.2290
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [5.9167]
_cell_length_b [3.6084]
_cell_length_c [19.0875]
_cell_angle_alpha [90.0000]
_cell_angle_beta [93.2824]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Pm7Sm3Er2]
_chemical_formula_sum '[Pm7 Sm3 Er2]'
_cell_volume [406.8411]
_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
[
  Pm  Pm0  2  0.1848  0.5000  0.1819  1
  Pm  Pm1  2  0.2572  0.5000  0.5353  1
  Pm  Pm2  2  0.3172  0.0000  0.8546  1
  Pm  Pm3  1  0.0000  0.0000  0.0000  1
  Sm  Sm4  2  0.2182  0.0000  0.3665  1
  Sm  Sm5  1  0.5000  0.5000  0.0000  1
  Er  Er6  2  0.2913  0.5000  0.7040  1
]