data_[Na8Tm4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Tm  1.2500  1.7500  1.0950
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [5.8997]
_cell_length_b [10.1754]
_cell_length_c [5.8957]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.0061]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2TmO3]
_chemical_formula_sum '[Na8 Tm4 O12]'
_cell_volume [332.5727]
_cell_formula_units_Z [4]
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
[
  Na  Na0  4  0.0000  0.3410  0.0000  1.0
  Na  Na1  2  0.0000  0.0000  0.0000  1.0
  Na  Na2  2  0.0000  0.5000  0.5000  1.0
  Tm  Tm3  4  0.0000  0.1658  0.5000  1.0
  O  O4  8  0.2424  0.1827  0.2823  1.0
  O  O5  4  0.2112  0.0000  0.7245  1.0
]