data_[La2Tm2Se2O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Tm  1.2500  1.7500  1.0950
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.6758]
_cell_length_b [4.0958]
_cell_length_c [7.7646]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.0049]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [LaTmSeO2]
_chemical_formula_sum '[La2 Tm2 Se2 O4]'
_cell_volume [200.7312]
_cell_formula_units_Z [2]
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
[
  La  La0  2  0.3075  0.7500  0.0699  1.0
  Tm  Tm1  2  0.3333  0.7500  0.5773  1.0
  Se  Se2  2  0.0453  0.2500  0.7447  1.0
  O  O3  2  0.4805  0.2500  0.6078  1.0
  O  O4  2  0.4866  0.2500  0.1323  1.0
]