data_[Mg2Tl4Cd2Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Tl  1.6200  1.9000  1.3325
  Cd  1.6900  1.5500  1.0900
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.2815]
_cell_length_b [10.6067]
_cell_length_c [6.9526]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [MgTl2CdHg2]
_chemical_formula_sum '[Mg2 Tl4 Cd2 Hg4]'
_cell_volume [315.7378]
_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
[
  Mg  Mg0  2  0.0000  0.4888  0.3990  1
  Tl  Tl1  2  0.0000  0.1953  0.8608  1
  Tl  Tl2  2  0.5000  0.0044  0.6057  1
  Cd  Cd3  2  0.5000  0.3334  0.1461  1
  Hg  Hg4  2  0.0000  0.1953  0.3810  1
  Hg  Hg5  2  0.5000  0.3824  0.6530  1
]