data_BiBRu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.33
_cell_length_b   4.33
_cell_length_c   3.19
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BiBRu2
_chemical_formula_sum   'Bi1 B1 Ru2'
_cell_volume   59.77
_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
  Bi  Bi1  1  0.16  0.16  0.0  1.0
  B  B0  1  0.0  0.0  0.0  1.0
  Ru  Ru2  1  0.16  0.0  0.6  1.0
  Ru  Ru3  1  0.0  0.16  0.6  1.0

data_BiBRu2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.12
_cell_length_b   6.12
_cell_length_c   3.19
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BiBRu2
_chemical_formula_sum   'Bi2 B2 Ru4'
_cell_volume   119.53
_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
  Bi  Bi0  2  0.16  0.0  0.0  1.0
  B  B1  2  0.0  0.0  0.0  1.0
  Ru  Ru2  4  0.08  0.08  0.6  1.0

Bi B Ru Ru
Bi B Ru Ru 0 1 o o o 2 3 o o o 
(Ru)2BBi crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two bismuth;boron molecules and two Ru clusters. In each Ru cluster, Ru(1) is bonded in a distorted single-bond geometry to one Ru(1) atom. The Ru(1)-Ru(1) bond length is 1.00 Å.