data_[Cs2P4Se2O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  P  2.1900  1.0000  0.5500
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [8.1730]
_cell_length_b [5.2175]
_cell_length_c [8.9824]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.7744]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [CsP2SeO8]
_chemical_formula_sum '[Cs2 P4 Se2 O16]'
_cell_volume [381.0923]
_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
[
  Cs  Cs0  2  0.0000  0.0000  0.5000  1.0
  P  P1  4  0.1283  0.5000  0.8225  1.0
  Se  Se2  2  0.0000  0.0000  0.0000  1.0
  O  O3  8  0.0145  0.2573  0.8407  1.0
  O  O4  4  0.1830  0.5000  0.6688  1.0
  O  O5  4  0.2385  0.0000  0.0394  1.0
]