data_[Hg6H18Pd18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Hg  2.0000  1.5000  1.2450
  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 [5.2975]
_cell_length_b [5.2975]
_cell_length_c [20.9003]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Hg(HPd)3]
_chemical_formula_sum '[Hg6 H18 Pd18]'
_cell_volume [507.9577]
_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
[
  Hg  Hg0  6  0.0000  0.0000  0.3337  1
  Pd  Pd1  18  0.0022  0.6633  0.8924  1
  H  H2  18  0.0026  0.6767  0.1261  1
]