data_[La2Be2Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Be  1.5700  1.0500  0.5900
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [4.5148]
_cell_length_b [5.4527]
_cell_length_c [7.6736]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [LaBeHg2]
_chemical_formula_sum '[La2 Be2 Hg4]'
_cell_volume [188.9074]
_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
[
  La  La0  2  0.0000  0.5000  0.0000  1
  Be  Be1  2  0.0000  0.5000  0.5000  1
  Hg  Hg2  4  0.0000  0.0000  0.2107  1
]