data_[Ba2Pm2Be2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Pm  1.1300  1.8500  1.1100
  Be  1.5700  1.0500  0.5900
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.6253]
_cell_length_b [5.0116]
_cell_length_c [7.4540]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.1675]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [BaPmBeO4]
_chemical_formula_sum '[Ba2 Pm2 Be2 O8]'
_cell_volume [200.7758]
_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
[
  Ba  Ba0  2  0.2828  0.2500  0.0686  1
  Pm  Pm1  2  0.2432  0.2500  0.5542  1
  Be  Be2  2  0.2336  0.7500  0.3190  1
  O  O3  4  0.0151  0.5132  0.2784  1
  O  O4  2  0.3901  0.7500  0.5423  1
  O  O5  2  0.4104  0.7500  0.1798  1
]