data_TaCo2Sb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.65
_cell_length_b   7.65
_cell_length_c   7.65
_cell_angle_alpha   23.85
_cell_angle_beta   23.85
_cell_angle_gamma   23.85
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TaCo2Sb
_chemical_formula_sum   'Ta1 Co2 Sb1'
_cell_volume   64.22
_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  Ta3  1  0.0  0.0  0.14  1.0
  Co  Co0  1  0.0  0.0  0.44  1.0
  Co  Co1  1  0.0  0.0  0.84  1.0
  Sb  Sb2  1  0.0  0.0  0.0  1.0

data_TaCo2Sb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.47
_cell_length_b   3.16
_cell_length_c   7.65
_cell_angle_alpha   90.0
_cell_angle_beta   103.8
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   TaCo2Sb
_chemical_formula_sum   'Ta2 Co4 Sb2'
_cell_volume   128.44
_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
  Ta  Ta0  2  0.0  0.0  0.86  1.0
  Co  Co1  2  0.0  0.0  0.16  1.0
  Co  Co2  2  0.0  0.0  0.56  1.0
  Sb  Sb3  2  0.0  0.0  0.0  1.0

Ta Co Co Sb
TaCo2Sb crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two TaCo2Sb clusters. Ta(1) is bonded in a distorted single-bond geometry to one Co(1) and one Sb(1) atom. The Ta(1)-Co(1) bond length is 2.28 Å. The Ta(1)-Sb(1) bond length is 1.07 Å. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a single-bond geometry to one Ta(1) atom. In the second Co site, Co(2) is bonded in a single-bond geometry to one Sb(1) atom. The Co(2)-Sb(1) bond length is 1.20 Å. Sb(1) is bonded in a linear geometry to one Ta(1) and one Co(2) atom.