data_[Pm3Ho3Hg6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ho  1.2300  1.7500  1.0410
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [3.8214]
_cell_length_b [3.8214]
_cell_length_c [27.4127]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [PmHoHg2]
_chemical_formula_sum '[Pm3 Ho3 Hg6]'
_cell_volume [346.6699]
_cell_formula_units_Z [3]
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
[
  Pm  Pm0  3  0.0000  0.0000  0.6665  1
  Ho  Ho1  3  0.0000  0.0000  0.5002  1
  Hg  Hg2  3  0.0000  0.0000  0.0859  1
  Hg  Hg3  3  0.0000  0.0000  0.2475  1
]