data_[Na6H18Pd18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  H  2.2000  0.2500  0.0000
  Pd  2.2000  1.4000  0.8462
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [5.0640]
_cell_length_b [5.0640]
_cell_length_c [22.3181]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Na(HPd)3]
_chemical_formula_sum '[Na6 H18 Pd18]'
_cell_volume [495.6557]
_cell_formula_units_Z [6]
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  6  0.0000  0.0000  0.3333  1.0
  Pd  Pd1  18  0.0001  0.6662  0.8866  1.0
  H  H2  18  0.0001  0.3301  0.9178  1.0
]