data_[Li4Ca8Hg8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Ca  1.0000  1.8000  1.1400
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.6641]
_cell_length_b [4.6434]
_cell_length_c [11.2511]
_cell_angle_alpha [90.0000]
_cell_angle_beta [117.6250]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Li(CaHg)2]
_chemical_formula_sum '[Li4 Ca8 Hg8]'
_cell_volume [539.9011]
_cell_formula_units_Z [4]
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
[
  Li  Li0  4  0.2127  0.0000  0.3637  1.0
  Ca  Ca1  4  0.0031  0.5000  0.6693  1.0
  Ca  Ca2  4  0.1843  0.5000  0.1048  1.0
  Hg  Hg3  4  0.0252  0.0000  0.8774  1.0
  Hg  Hg4  4  0.1493  0.0000  0.5753  1.0
]