data_[Er2P2Pb2O2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  P  2.1900  1.0000  0.5500
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.6891]
_cell_length_b [6.9143]
_cell_length_c [6.2694]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [ErPPbO]
_chemical_formula_sum '[Er2 P2 Pb2 O2]'
_cell_volume [203.2669]
_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
[
  Er  Er0  2  0.0000  0.3591  0.0297  1
  P  P1  2  0.5000  0.2006  0.9078  1
  Pb  Pb2  2  0.5000  0.2019  0.4488  1
  O  O3  2  0.0000  0.3750  0.3677  1
]