data_[Rb4Hg4Br10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Hg  2.0000  1.5000  1.2450
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.6429]
_cell_length_b [5.7725]
_cell_length_c [8.4454]
_cell_angle_alpha [90.0000]
_cell_angle_beta [114.3187]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Hg2Br5]
_chemical_formula_sum '[Rb4 Hg4 Br10]'
_cell_volume [694.9350]
_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
[
  Rb  Rb0  4  0.1087  0.5000  0.2941  1
  Hg  Hg1  4  0.1341  0.0000  0.8545  1
  Br  Br2  4  0.1453  0.5000  0.8997  1
  Br  Br3  4  0.1490  0.0000  0.5419  1
  Br  Br4  2  0.0000  0.0000  0.0000  1
]