data_[Pr6Sm3Tm3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Sm  1.1700  1.8500  1.2290
  Tm  1.2500  1.7500  1.0950
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [6.0054]
_cell_length_b [6.0054]
_cell_length_c [15.3728]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Pr2SmTmO6]
_chemical_formula_sum '[Pr6 Sm3 Tm3 O18]'
_cell_volume [480.1406]
_cell_formula_units_Z [3]
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
[
  Pr  Pr0  3  0.0000  0.0000  0.0303  1.0
  Pr  Pr1  3  0.0000  0.0000  0.5321  1.0
  Sm  Sm2  3  0.0000  0.0000  0.8076  1.0
  Tm  Tm3  3  0.0000  0.0000  0.3117  1.0
  O  O4  9  0.0190  0.7263  0.4121  1.0
  O  O5  9  0.0239  0.3874  0.5812  1.0
]