data_SrGaHg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.63
_cell_length_b   4.63
_cell_length_c   4.95
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrGaHg
_chemical_formula_sum   'Sr1 Ga1 Hg1'
_cell_volume   91.77
_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
  Sr  Sr2  1  0.0  0.67  0.27  1.0
  Ga  Ga0  1  0.0  0.0  0.77  1.0
  Hg  Hg1  1  0.31  0.34  0.86  1.0

data_SrGaHg
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.63
_cell_length_b   4.63
_cell_length_c   4.95
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrGaHg
_chemical_formula_sum   'Sr1 Ga1 Hg1'
_cell_volume   91.77
_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
  Sr  Sr0  1  0.0  0.67  0.27  1.0
  Ga  Ga1  1  0.0  0.0  0.77  1.0
  Hg  Hg2  1  0.31  0.34  0.86  1.0

Sr Ga Hg
SrHgGa crystallizes in the triclinic P1 space group. Sr(1) is bonded in a 4-coordinate geometry to two equivalent Hg(1) and two equivalent Ga(1) atoms. There is one shorter (3.29 Å) and one longer (3.41 Å) Sr(1)-Hg(1) bond length. There is one shorter (2.89 Å) and one longer (2.92 Å) Sr(1)-Ga(1) bond length. Hg(1) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one Ga(1) atom. The Hg(1)-Ga(1) bond length is 1.58 Å. Ga(1) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one Hg(1) atom.