data_CoHg2Sb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.19
_cell_length_b   6.19
_cell_length_c   3.42
_cell_angle_alpha   104.56
_cell_angle_beta   104.56
_cell_angle_gamma   126.6
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CoHg2Sb
_chemical_formula_sum   'Co1 Hg2 Sb1'
_cell_volume   87.09
_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
  Co  Co0  1  0.0  0.0  0.0  1.0
  Hg  Hg1  1  0.39  0.77  0.0  1.0
  Hg  Hg2  1  0.39  0.23  0.0  1.0
  Sb  Sb3  1  0.78  0.0  0.0  1.0

data_CoHg2Sb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.42
_cell_length_b   4.62
_cell_length_c   6.19
_cell_angle_alpha   110.8
_cell_angle_beta   104.56
_cell_angle_gamma   93.77
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CoHg2Sb
_chemical_formula_sum   'Co1 Hg2 Sb1'
_cell_volume   87.09
_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
  Co  Co0  1  0.0  0.0  0.0  1.0
  Hg  Hg1  1  0.23  0.23  0.63  1.0
  Hg  Hg2  1  0.77  0.77  0.16  1.0
  Sb  Sb3  1  0.0  0.0  0.78  1.0

Co Hg Hg Sb
CoHg2Sb crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one CoHg2Sb cluster. Co(1) is bonded in a distorted bent 150 degrees geometry to one Hg(2) and one Sb(1) atom. The Co(1)-Hg(2) bond length is 1.94 Å. The Co(1)-Sb(1) bond length is 1.35 Å. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a distorted single-bond geometry to one Sb(1) atom. The Hg(1)-Sb(1) bond length is 1.94 Å. In the second Hg site, Hg(2) is bonded in a distorted single-bond geometry to one Co(1) atom. Sb(1) is bonded in a 2-coordinate geometry to one Co(1) and one Hg(1) atom.