data_B3Ru4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.93
_cell_length_b   9.93
_cell_length_c   9.93
_cell_angle_alpha   164.05
_cell_angle_beta   164.05
_cell_angle_gamma   22.63
_symmetry_Int_Tables_number   1
_chemical_formula_structural   B3Ru4
_chemical_formula_sum   'B3 Ru4'
_cell_volume   73.86
_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
  B  B0  1  0.0  0.0  0.0  1.0
  B  B1  1  0.0  0.0  0.07  1.0
  B  B2  1  0.0  0.0  0.4  1.0
  Ru  Ru3  1  0.0  0.0  0.22  1.0
  Ru  Ru4  1  0.0  0.0  0.25  1.0
  Ru  Ru5  1  0.0  0.0  0.01  1.0
  Ru  Ru6  1  0.0  0.0  0.46  1.0

data_B3Ru4
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.9
_cell_length_b   3.9
_cell_length_c   9.93
_cell_angle_alpha   90.0
_cell_angle_beta   101.31
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   B3Ru4
_chemical_formula_sum   'B6 Ru8'
_cell_volume   147.72
_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
  B  B0  2  0.0  0.0  0.0  1.0
  B  B1  2  0.0  0.0  0.6  1.0
  B  B2  2  0.0  0.0  0.93  1.0
  Ru  Ru3  2  0.0  0.0  0.54  1.0
  Ru  Ru4  2  0.0  0.0  0.75  1.0
  Ru  Ru5  2  0.0  0.0  0.78  1.0
  Ru  Ru6  2  0.0  0.0  0.99  1.0

B B B Ru Ru Ru Ru
Ru4B3 is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Ru4B3 clusters. There are four inequivalent Ru sites. In the first Ru site, Ru(1) is bonded in a linear geometry to one Ru(2) and one B(2) atom. The Ru(1)-Ru(2) bond length is 0.24 Å. The Ru(1)-B(2) bond length is 1.49 Å. In the second Ru site, Ru(2) is bonded in a linear geometry to one Ru(1) and one B(3) atom. The Ru(2)-B(3) bond length is 1.49 Å. In the third Ru site, Ru(3) is bonded in a linear geometry to one B(1) and one B(2) atom. The Ru(3)-B(1) bond length is 0.11 Å. The Ru(3)-B(2) bond length is 0.61 Å. In the fourth Ru site, Ru(4) is bonded in a single-bond geometry to one B(3) atom. The Ru(4)-B(3) bond length is 0.61 Å. There are three inequivalent B sites. In the first B site, B(1) is bonded in a single-bond geometry to one Ru(3) atom. In the second B site, B(2) is bonded in a distorted linear geometry to one Ru(1) and one Ru(3) atom. In the third B site, B(3) is bonded in a distorted linear geometry to one Ru(2) and one Ru(4) atom.