data_[Sr2Sn4Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Sn  1.9600  1.4500  0.8300
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [5.5199]
_cell_length_b [6.3342]
_cell_length_c [9.0731]
_cell_angle_alpha [77.9641]
_cell_angle_beta [73.4893]
_cell_angle_gamma [69.8761]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Sr(SnHg)2]
_chemical_formula_sum '[Sr2 Sn4 Hg4]'
_cell_volume [283.4161]
_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
[
  Sr  Sr0  2  0.2669  0.1670  0.7147  1
  Sn  Sn1  2  0.0255  0.2933  0.1174  1
  Sn  Sn2  2  0.3716  0.4010  0.3066  1
  Hg  Hg3  2  0.1531  0.7597  0.5277  1
  Hg  Hg4  2  0.3671  0.7864  0.0440  1
]