data_[Ba1Ce1Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Ce  1.1200  1.8500  1.0800
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Pmmm]
_cell_length_a [3.6129]
_cell_length_b [5.1986]
_cell_length_c [9.0689]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [47]
_chemical_formula_structural [BaCeHg4]
_chemical_formula_sum '[Ba1 Ce1 Hg4]'
_cell_volume [170.3303]
_cell_formula_units_Z [1]
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
[
  Ba  Ba0  1  0.5000  0.0000  0.5000  1
  Ce  Ce1  1  0.5000  0.5000  0.0000  1
  Hg  Hg2  2  0.0000  0.0000  0.1596  1
  Hg  Hg3  2  0.0000  0.5000  0.3238  1
]