data_Ta2BRu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.75
_cell_length_b   4.75
_cell_length_c   4.75
_cell_angle_alpha   140.6
_cell_angle_beta   117.48
_cell_angle_gamma   76.45
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2BRu
_chemical_formula_sum   'Ta2 B1 Ru1'
_cell_volume   58.82
_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
  Ta  Ta2  1  0.6  0.0  0.63  1.0
  Ta  Ta3  1  0.0  0.46  0.1  1.0
  B  B0  1  0.0  0.0  0.0  1.0
  Ru  Ru1  1  0.0  0.0  0.73  1.0

data_Ta2BRu
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.2
_cell_length_b   4.75
_cell_length_c   4.75
_cell_angle_alpha   62.52
_cell_angle_beta   70.3
_cell_angle_gamma   70.3
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2BRu
_chemical_formula_sum   'Ta2 B1 Ru1'
_cell_volume   58.82
_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
  Ta  Ta0  1  0.03  0.6  0.37  1.0
  Ta  Ta1  1  0.1  0.0  0.36  1.0
  B  B2  1  0.0  0.0  0.0  1.0
  Ru  Ru3  1  0.73  -0.0  0.27  1.0

Ta Ta B Ru
Ta2RuB crystallizes in the triclinic P1 space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 1-coordinate geometry to one Ru(1) and two equivalent B(1) atoms. The Ta(1)-Ru(1) bond length is 1.73 Å. There is one shorter (1.90 Å) and one longer (3.03 Å) Ta(1)-B(1) bond length. In the second Ta site, Ta(2) is bonded in a distorted bent 150 degrees geometry to two equivalent Ru(1) and two equivalent B(1) atoms. There is one shorter (1.40 Å) and one longer (1.91 Å) Ta(2)-Ru(1) bond length. There is one shorter (1.85 Å) and one longer (2.94 Å) Ta(2)-B(1) bond length. Ru(1) is bonded in a 4-coordinate geometry to one Ta(1), two equivalent Ta(2), and one B(1) atom. The Ru(1)-B(1) bond length is 1.28 Å. B(1) is bonded in a 5-coordinate geometry to two equivalent Ta(1), two equivalent Ta(2), and one Ru(1) atom.