data_[Be2Ag2P2O2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Be  1.5700  1.0500  0.5900
  Ag  1.9300  1.6000  1.0867
  P  2.1900  1.0000  0.5500
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [2.7647]
_cell_length_b [6.8043]
_cell_length_c [5.5982]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [BeAgPO]
_chemical_formula_sum '[Be2 Ag2 P2 O2]'
_cell_volume [105.3129]
_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
[
  Be  Be0  2  0.0000  0.2014  0.9874  1
  Ag  Ag1  2  0.5000  0.2200  0.4913  1
  P  P2  2  0.0000  0.4995  0.7822  1
  O  O3  2  0.5000  0.1098  0.9932  1
]