data_NaHgBi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.4
_cell_length_b   3.4
_cell_length_c   10.21
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   94.92
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaHgBi2
_chemical_formula_sum   'Na1 Hg1 Bi2'
_cell_volume   117.8
_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  Na3  1  0.0  0.0  0.73  1.0
  Hg  Hg2  1  0.3  0.0  0.95  1.0
  Bi  Bi0  1  0.3  0.0  0.11  1.0
  Bi  Bi1  1  0.0  0.0  0.51  1.0

data_NaHgBi2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.4
_cell_length_b   3.4
_cell_length_c   10.21
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   94.92
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaHgBi2
_chemical_formula_sum   'Na1 Hg1 Bi2'
_cell_volume   117.8
_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  1  0.0  0.0  0.73  1.0
  Hg  Hg1  1  0.3  0.0  0.95  1.0
  Bi  Bi2  1  0.0  0.0  0.51  1.0
  Bi  Bi3  1  0.3  0.0  0.11  1.0

Na Hg Bi Bi
NaHgBi2 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one NaHgBi2 cluster. Na(1) is bonded in a distorted bent 150 degrees geometry to one Hg(1) and one Bi(2) atom. The Na(1)-Hg(1) bond length is 2.51 Å. The Na(1)-Bi(2) bond length is 2.22 Å. Hg(1) is bonded in a 2-coordinate geometry to one Na(1) and one Bi(1) atom. The Hg(1)-Bi(1) bond length is 1.63 Å. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a single-bond geometry to one Hg(1) atom. In the second Bi site, Bi(2) is bonded in a single-bond geometry to one Na(1) atom.