data_[Si2Hg4Rh2]
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 [Imm2]
_cell_length_a [3.0051]
_cell_length_b [4.7189]
_cell_length_c [11.3824]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [SiHg2Rh]
_chemical_formula_sum '[Si2 Hg4 Rh2]'
_cell_volume [161.4100]
_cell_formula_units_Z [2]
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  2  0.0000  0.5000  0.1820  1
  Hg  Hg1  2  0.0000  0.0000  0.9967  1
  Hg  Hg2  2  0.0000  0.5000  0.7971  1
  Rh  Rh3  2  0.0000  0.0000  0.5241  1
]