data_[Pm2Sm3Er7]
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 [6.3568]
_cell_length_b [3.5365]
_cell_length_c [17.2354]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0256]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Pm2Sm3Er7]
_chemical_formula_sum '[Pm2 Sm3 Er7]'
_cell_volume [387.4604]
_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  0.4935  0.5000  0.3249  1
  Sm  Sm1  2  0.0003  0.0000  0.3404  1
  Sm  Sm2  1  0.5000  0.5000  0.0000  1
  Er  Er3  2  0.1725  0.5000  0.8353  1
  Er  Er4  2  0.2454  0.5000  0.4999  1
  Er  Er5  2  0.3241  0.0000  0.1636  1
  Er  Er6  1  0.0000  0.0000  0.0000  1
]