data_[Si6Hg3Rh3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Si  1.9000  1.1000  0.5400
  Hg  2.0000  1.5000  1.2450
  Rh  2.2800  1.3500  0.7450
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [3.1390]
_cell_length_b [3.1390]
_cell_length_c [23.5768]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [Si2HgRh]
_chemical_formula_sum '[Si6 Hg3 Rh3]'
_cell_volume [201.1836]
_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
[
  Si  Si0  3  0.0000  0.0000  0.0032  1
  Si  Si1  3  0.0000  0.0000  0.2619  1
  Hg  Hg2  3  0.0000  0.0000  0.4994  1
  Rh  Rh3  3  0.0000  0.0000  0.7356  1
]