data_TcHg2Ru
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.65
_cell_length_b   5.65
_cell_length_c   2.86
_cell_angle_alpha   103.44
_cell_angle_beta   103.44
_cell_angle_gamma   118.57
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TcHg2Ru
_chemical_formula_sum   'Tc1 Hg2 Ru1'
_cell_volume   71.3
_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
  Tc  Tc3  1  0.0  0.0  0.0  1.0
  Hg  Hg0  1  0.79  0.43  0.27  1.0
  Hg  Hg1  1  0.79  0.57  0.27  1.0
  Ru  Ru2  1  0.88  0.0  0.0  1.0

data_TcHg2Ru
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.86
_cell_length_b   5.14
_cell_length_c   5.65
_cell_angle_alpha   116.34
_cell_angle_beta   103.44
_cell_angle_gamma   92.62
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TcHg2Ru
_chemical_formula_sum   'Tc1 Hg2 Ru1'
_cell_volume   71.3
_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
  Tc  Tc0  1  0.0  0.0  0.0  1.0
  Hg  Hg1  1  0.7  0.43  0.22  1.0
  Hg  Hg2  1  0.85  0.57  0.36  1.0
  Ru  Ru3  1  0.0  0.0  0.88  1.0

Tc Hg Hg Ru
TcRuHg2 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one TcRuHg2 cluster. Tc(1) is bonded in a single-bond geometry to one Ru(1) atom. The Tc(1)-Ru(1) bond length is 0.65 Å. Ru(1) is bonded in a single-bond geometry to one Tc(1) and one Hg(1) atom. The Ru(1)-Hg(1) bond length is 2.69 Å. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a distorted single-bond geometry to one Ru(1) and one Hg(2) atom. The Hg(1)-Hg(2) bond length is 0.82 Å. In the second Hg site, Hg(2) is bonded in a distorted single-bond geometry to one Hg(1) atom.