data_[Na4Be4Pt4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Be  1.5700  1.0500  0.5900
  Pt  2.2800  1.3500  0.8050
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [6.4388]
_cell_length_b [8.7601]
_cell_length_c [7.0982]
_cell_angle_alpha [90.0000]
_cell_angle_beta [116.1310]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [NaBePtO5]
_chemical_formula_sum '[Na4 Be4 Pt4 O20]'
_cell_volume [359.4510]
_cell_formula_units_Z [4]
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
[
  Na  Na0  4  0.0000  0.3486  0.2500  1
  Be  Be1  4  0.0000  0.3063  0.7500  1
  Pt  Pt2  4  0.0000  0.0000  0.0000  1
  O  O3  8  0.1127  0.1965  0.6364  1
  O  O4  8  0.1856  0.4264  0.9192  1
  O  O5  4  0.0000  0.0927  0.2500  1
]