data_CoHgP2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.87
_cell_length_b   4.87
_cell_length_c   4.87
_cell_angle_alpha   132.16
_cell_angle_beta   132.16
_cell_angle_gamma   69.98
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CoHgP2
_chemical_formula_sum   'Co1 Hg1 P2'
_cell_volume   62.27
_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  0.99  1.0
  Hg  Hg1  1  0.0  0.98  1.0  1.0
  P  P2  1  0.0  0.0  0.0  1.0
  P  P3  1  0.98  0.0  1.0  1.0

data_CoHgP2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.59
_cell_length_b   5.59
_cell_length_c   4.87
_cell_angle_alpha   90.0
_cell_angle_beta   124.99
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CoHgP2
_chemical_formula_sum   'Co2 Hg2 P4'
_cell_volume   124.54
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.0  0.0  0.01  1.0
  Hg  Hg1  2  0.47  0.5  0.98  1.0
  P  P2  2  0.5  0.5  0.0  1.0
  P  P3  2  0.5  0.5  0.98  1.0

Co Hg P P
CoHgP2 is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one CoHgP2 cluster. Co(1) is bonded in a single-bond geometry to one P(1) atom. The Co(1)-P(1) bond length is 0.05 Å. Hg(1) is bonded in a single-bond geometry to one P(1) atom. The Hg(1)-P(1) bond length is 0.11 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded in a 3-coordinate geometry to one Co(1), one Hg(1), and one P(2) atom. The P(1)-P(2) bond length is 0.11 Å. In the second P site, P(2) is bonded in a distorted single-bond geometry to one P(1) atom.