data_SrHgGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.6
_cell_length_b   4.6
_cell_length_c   4.65
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrHgGe
_chemical_formula_sum   'Sr1 Hg1 Ge1'
_cell_volume   85.18
_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  0.65  0.1  1.0
  Hg  Hg1  1  0.3  0.33  0.9  1.0
  Ge  Ge0  1  0.0  0.0  0.65  1.0

data_SrHgGe
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.6
_cell_length_b   4.6
_cell_length_c   4.65
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrHgGe
_chemical_formula_sum   'Sr1 Hg1 Ge1'
_cell_volume   85.18
_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  0.65  0.1  1.0
  Hg  Hg1  1  0.3  0.33  0.9  1.0
  Ge  Ge2  1  0.0  0.0  0.65  1.0

Sr Hg Ge
Sr Hg Ge 0 1 - o - 0 1 o + - 0 1 o o - 0 2 o + - 0 2 o + o 1 2 o o o 
SrHgGe crystallizes in the triclinic P1 space group. Sr(1) is bonded in a 5-coordinate geometry to three equivalent Hg(1) and two equivalent Ge(1) atoms. There are a spread of Sr(1)-Hg(1) bond distances ranging from 2.68-2.96 Å. There is one shorter (2.65 Å) and one longer (2.99 Å) Sr(1)-Ge(1) bond length. Hg(1) is bonded to three equivalent Sr(1) and one Ge(1) atom to form distorted corner-sharing HgSr3Ge tetrahedra. The Hg(1)-Ge(1) bond length is 1.85 Å. Ge(1) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one Hg(1) atom.