data_[Pm2B2Se2O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  B  2.0400  0.8500  0.4100
  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 [5.7311]
_cell_length_b [4.8100]
_cell_length_c [6.0482]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.8856]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [PmBSeO2]
_chemical_formula_sum '[Pm2 B2 Se2 O4]'
_cell_volume [162.5302]
_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
[
  Pm  Pm0  2  0.3082  0.7500  0.7502  1
  B  B1  2  0.1365  0.2500  0.0563  1
  Se  Se2  2  0.2337  0.2500  0.4233  1
  O  O3  2  0.0996  0.7500  0.0282  1
  O  O4  2  0.3283  0.2500  0.9548  1
]