data_TcBW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.03
_cell_length_b   4.03
_cell_length_c   4.03
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TcBW
_chemical_formula_sum   'Tc1 B1 W1'
_cell_volume   46.2
_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
  Tc  Tc1  1  0.85  0.85  0.85  1.0
  B  B0  1  0.0  0.0  0.0  1.0
  W  W2  1  0.42  0.42  0.42  1.0

data_TcBW
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.03
_cell_length_b   4.03
_cell_length_c   9.87
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   TcBW
_chemical_formula_sum   'Tc3 B3 W3'
_cell_volume   138.61
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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
  Tc  Tc0  3  0.0  0.0  0.15  1.0
  B  B1  3  0.0  0.0  0.0  1.0
  W  W2  3  0.0  0.0  0.58  1.0

Tc B W
WTcB crystallizes in the trigonal R3m space group. W(1) is bonded in a 6-coordinate geometry to three equivalent Tc(1) and three equivalent B(1) atoms. All W(1)-Tc(1) bond lengths are 2.49 Å. All W(1)-B(1) bond lengths are 2.49 Å. Tc(1) is bonded to three equivalent W(1) and one B(1) atom to form distorted TcBW3 tetrahedra that share corners with three equivalent B(1)TcW3 tetrahedra, corners with six equivalent Tc(1)BW3 tetrahedra, and edges with three equivalent B(1)TcW3 tetrahedra. The Tc(1)-B(1) bond length is 1.50 Å. B(1) is bonded to three equivalent W(1) and one Tc(1) atom to form distorted BTcW3 tetrahedra that share corners with three equivalent Tc(1)BW3 tetrahedra, corners with six equivalent B(1)TcW3 tetrahedra, and edges with three equivalent Tc(1)BW3 tetrahedra.