data_[Sr4Ag4Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ag  1.9300  1.6000  1.0867
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [6.5707]
_cell_length_b [6.3861]
_cell_length_c [8.8060]
_cell_angle_alpha [90.0000]
_cell_angle_beta [113.1306]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [SrAgHg]
_chemical_formula_sum '[Sr4 Ag4 Hg4]'
_cell_volume [339.8072]
_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
[
  Sr  Sr0  4  0.2070  0.6405  0.3768  1.0
  Ag  Ag1  4  0.4071  0.0896  0.2860  1.0
  Hg  Hg2  4  0.1953  0.1411  0.5167  1.0
]