data_Bi2AsRu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.29
_cell_length_b   5.29
_cell_length_c   5.56
_cell_angle_alpha   103.48
_cell_angle_beta   103.48
_cell_angle_gamma   38.06
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Bi2AsRu
_chemical_formula_sum   'Bi2 As1 Ru1'
_cell_volume   92.86
_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  0.18  0.0  0.92  1.0
  Bi  Bi2  1  0.44  0.0  0.46  1.0
  As  As0  1  0.0  0.0  0.0  1.0
  Ru  Ru3  1  0.31  0.0  0.69  1.0

data_Bi2AsRu
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.45
_cell_length_b   5.29
_cell_length_c   5.56
_cell_angle_alpha   103.48
_cell_angle_beta   90.0
_cell_angle_gamma   109.03
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Bi2AsRu
_chemical_formula_sum   'Bi2 As1 Ru1'
_cell_volume   92.86
_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  Bi0  1  0.0  0.56  0.54  1.0
  Bi  Bi1  1  0.0  0.82  0.08  1.0
  As  As2  1  0.0  0.0  0.0  1.0
  Ru  Ru3  1  0.0  0.69  0.31  1.0

Bi Bi As Ru
Bi Bi As Ru 0 2 o o + 0 3 o o o 1 3 o o o 
RuBi2As crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one RuBi2As cluster. Ru(1) is bonded in a linear geometry to one Bi(1) and one Bi(2) atom. The Ru(1)-Bi(1) bond length is 1.59 Å. The Ru(1)-Bi(2) bond length is 1.59 Å. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a bent 150 degrees geometry to one Ru(1) and one As(1) atom. The Bi(1)-As(1) bond length is 1.15 Å. In the second Bi site, Bi(2) is bonded in a single-bond geometry to one Ru(1) atom. As(1) is bonded in a single-bond geometry to one Bi(1) atom.