data_[Pm7Er2Tm3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [6.4171]
_cell_length_b [3.5616]
_cell_length_c [17.2968]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.1959]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Pm7Er2Tm3]
_chemical_formula_sum '[Pm7 Er2 Tm3]'
_cell_volume [395.3149]
_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  0.1763  0.5000  0.1711  1
  Pm  Pm1  2  0.2410  0.5000  0.4938  1
  Pm  Pm2  2  0.3225  0.0000  0.8332  1
  Pm  Pm3  1  0.0000  0.0000  0.0000  1
  Er  Er4  2  0.4883  0.5000  0.6708  1
  Tm  Tm5  2  0.0007  0.0000  0.6582  1
  Tm  Tm6  1  0.5000  0.5000  0.0000  1
]