data_[Na7Ag1Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ag  1.9300  1.6000  1.0867
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [6.0683]
_cell_length_b [6.2133]
_cell_length_c [8.9992]
_cell_angle_alpha [105.9446]
_cell_angle_beta [93.3527]
_cell_angle_gamma [93.3679]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Na7AgHg4]
_chemical_formula_sum '[Na7 Ag1 Hg4]'
_cell_volume [324.7055]
_cell_formula_units_Z [1]
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
[
  Na  Na0  2  0.1618  0.7920  0.6291  1
  Na  Na1  2  0.2220  0.4708  0.9105  1
  Na  Na2  2  0.3685  0.2608  0.5562  1
  Na  Na3  1  0.5000  0.0000  0.0000  1
  Ag  Ag4  1  0.0000  0.0000  0.0000  1
  Hg  Hg5  2  0.2120  0.8604  0.2625  1
  Hg  Hg6  2  0.2743  0.3725  0.2397  1
]