data_[Hf4Be4Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Hf  1.3000  1.5500  0.8500
  Be  1.5700  1.0500  0.5900
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.7184]
_cell_length_b [15.4719]
_cell_length_c [3.5792]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [HfBeHg]
_chemical_formula_sum '[Hf4 Be4 Hg4]'
_cell_volume [205.9151]
_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
[
  Hf  Hf0  4  0.0000  0.0827  0.2500  1.0
  Be  Be1  4  0.0000  0.4643  0.2500  1.0
  Hg  Hg2  4  0.0000  0.3025  0.2500  1.0
]