data_NaGa2Hg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.48
_cell_length_b   5.48
_cell_length_c   5.37
_cell_angle_alpha   99.17
_cell_angle_beta   99.17
_cell_angle_gamma   33.32
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaGa2Hg
_chemical_formula_sum   'Na1 Ga2 Hg1'
_cell_volume   87.28
_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  0.0  1.0
  Ga  Ga0  1  0.94  0.0  0.95  1.0
  Ga  Ga1  1  0.66  0.0  0.34  1.0
  Hg  Hg2  1  0.8  0.0  0.65  1.0

data_NaGa2Hg
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.14
_cell_length_b   5.37
_cell_length_c   5.48
_cell_angle_alpha   99.17
_cell_angle_beta   106.66
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaGa2Hg
_chemical_formula_sum   'Na1 Ga2 Hg1'
_cell_volume   87.28
_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  0.0  1.0
  Ga  Ga1  1  0.0  0.34  0.66  1.0
  Ga  Ga2  1  0.0  0.95  0.94  1.0
  Hg  Hg3  1  0.0  0.65  0.8  1.0

Na Ga Ga Hg
NaHgGa2 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one NaHgGa2 cluster. Na(1) is bonded in a single-bond geometry to one Ga(1) atom. The Na(1)-Ga(1) bond length is 0.37 Å. Hg(1) is bonded in a linear geometry to one Ga(1) and one Ga(2) atom. The Hg(1)-Ga(1) bond length is 1.70 Å. The Hg(1)-Ga(2) bond length is 1.70 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a single-bond geometry to one Na(1) and one Hg(1) atom. In the second Ga site, Ga(2) is bonded in a distorted single-bond geometry to one Hg(1) atom.