data_YHgRu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.28
_cell_length_b   4.28
_cell_length_c   3.99
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YHgRu2
_chemical_formula_sum   'Y1 Hg1 Ru2'
_cell_volume   73.05
_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
  Y  Y3  1  0.0  0.0  0.0  1.0
  Hg  Hg0  1  0.14  0.14  0.0  1.0
  Ru  Ru1  1  0.14  0.0  1.0  1.0
  Ru  Ru2  1  0.0  0.14  1.0  1.0

data_YHgRu2
_symmetry_space_group_name_H-M   Amm2
_cell_length_a   3.99
_cell_length_b   6.05
_cell_length_c   6.05
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   38
_chemical_formula_structural   YHgRu2
_chemical_formula_sum   'Y2 Hg2 Ru4'
_cell_volume   146.1
_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, y, z'
  4  'x, -y, z'
  5  'x, y+1/2, z+1/2'
  6  '-x, -y+1/2, z+1/2'
  7  '-x, y+1/2, z+1/2'
  8  'x, -y+1/2, z+1/2'
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
  Y  Y0  2  0.0  0.0  0.0  1.0
  Hg  Hg1  2  0.0  0.0  0.14  1.0
  Ru  Ru2  4  0.0  0.07  0.07  1.0

Y Hg Ru Ru
Y Hg Ru Ru 0 2 o o - 0 3 o o - 1 3 o o - 1 2 o o - 
YRu2Hg is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two YRu2Hg clusters. Y(1) is bonded in an L-shaped geometry to two equivalent Ru(1) atoms. Both Y(1)-Ru(1) bond lengths are 0.59 Å. Ru(1) is bonded in an L-shaped geometry to one Y(1) and one Hg(1) atom. The Ru(1)-Hg(1) bond length is 0.59 Å. Hg(1) is bonded in an L-shaped geometry to two equivalent Ru(1) atoms.