data_CrHgOs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.83
_cell_length_b   4.83
_cell_length_c   4.83
_cell_angle_alpha   132.3
_cell_angle_beta   132.3
_cell_angle_gamma   69.75
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrHgOs2
_chemical_formula_sum   'Cr1 Hg1 Os2'
_cell_volume   60.32
_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
  Cr  Cr0  1  0.0  0.0  0.0  1.0
  Hg  Hg1  1  0.0  0.0  0.96  1.0
  Os  Os2  1  0.0  0.95  0.98  1.0
  Os  Os3  1  0.95  0.0  0.98  1.0

data_CrHgOs2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.52
_cell_length_b   5.52
_cell_length_c   4.83
_cell_angle_alpha   90.0
_cell_angle_beta   124.88
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CrHgOs2
_chemical_formula_sum   'Cr2 Hg2 Os4'
_cell_volume   120.64
_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
  Cr  Cr0  2  0.0  0.0  0.0  1.0
  Hg  Hg1  2  0.04  0.0  0.04  1.0
  Os  Os2  4  0.5  0.48  0.97  1.0

Cr Hg Os Os
Cr Hg Os Os 0 3 - o - 0 2 o - - 0 1 o o - 
CrOs2Hg is Ammonia-derived structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two CrOs2Hg clusters. Cr(1) is bonded in a trigonal non-coplanar geometry to two equivalent Os(1) and one Hg(1) atom. Both Cr(1)-Os(1) bond lengths are 0.18 Å. The Cr(1)-Hg(1) bond length is 0.19 Å. Os(1) is bonded in a single-bond geometry to one Cr(1) atom. Hg(1) is bonded in a single-bond geometry to one Cr(1) atom.