data_TcBOs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.74
_cell_length_b   2.74
_cell_length_c   6.54
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TcBOs2
_chemical_formula_sum   'Tc1 B1 Os2'
_cell_volume   49.13
_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  Tc3  1  0.37  0.37  0.54  1.0
  B  B0  1  0.0  0.0  0.98  1.0
  Os  Os1  1  0.37  0.37  0.19  1.0
  Os  Os2  1  0.0  0.0  0.63  1.0

data_TcBOs2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.88
_cell_length_b   3.88
_cell_length_c   6.54
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   TcBOs2
_chemical_formula_sum   'Tc2 B2 Os4'
_cell_volume   98.27
_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
  Tc  Tc0  2  0.37  0.0  0.54  1.0
  B  B1  2  0.0  0.0  0.98  1.0
  Os  Os2  2  0.0  0.0  0.63  1.0
  Os  Os3  2  0.37  0.0  0.19  1.0

Tc B Os Os
Tc B Os Os 0 3 o o o 0 2 o o o 1 2 - o + 1 2 o - + 1 2 o o + 1 3 o o o 
TcOs2B crystallizes in the monoclinic Cm space group. Tc(1) is bonded in a 5-coordinate geometry to one Os(1) and four equivalent Os(2) atoms. The Tc(1)-Os(1) bond length is 2.29 Å. There are a spread of Tc(1)-Os(2) bond distances ranging from 1.56-2.51 Å. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded in a 2-coordinate geometry to one Tc(1) and four equivalent B(1) atoms. There are a spread of Os(1)-B(1) bond distances ranging from 1.98-2.79 Å. In the second Os site, Os(2) is bonded in a 5-coordinate geometry to four equivalent Tc(1) and one B(1) atom. The Os(2)-B(1) bond length is 2.28 Å. B(1) is bonded in a 5-coordinate geometry to one Os(2) and four equivalent Os(1) atoms.