data_[Ho6Hg6H6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  Hg  2.0000  1.5000  1.2450
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [3.7135]
_cell_length_b [3.7135]
_cell_length_c [28.6944]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [HoHgH]
_chemical_formula_sum '[Ho6 Hg6 H6]'
_cell_volume [342.6931]
_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
[
  Ho  Ho0  6  0.0000  0.0000  0.1177  1.0
  Hg  Hg1  6  0.0000  0.0000  0.3722  1.0
  H  H2  6  0.0000  0.0000  0.1941  1.0
]