data_[Y2Tm2Se2O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  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 [6.4327]
_cell_length_b [3.9959]
_cell_length_c [7.5336]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.4154]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [YTmSeO2]
_chemical_formula_sum '[Y2 Tm2 Se2 O4]'
_cell_volume [184.7707]
_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
[
  Y  Y0  2  0.3174  0.7500  0.0744  1.0
  Tm  Tm1  2  0.3269  0.7500  0.5828  1.0
  Se  Se2  2  0.0444  0.2500  0.7583  1.0
  O  O3  2  0.4801  0.2500  0.1255  1.0
  O  O4  2  0.4846  0.2500  0.6158  1.0
]