data_NaTcBi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.14
_cell_length_b   6.14
_cell_length_c   6.14
_cell_angle_alpha   146.72
_cell_angle_beta   146.72
_cell_angle_gamma   47.77
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaTcBi
_chemical_formula_sum   'Na1 Tc1 Bi1'
_cell_volume   69.48
_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
  Na  Na1  1  0.0  0.0  0.67  1.0
  Tc  Tc2  1  0.0  0.0  0.22  1.0
  Bi  Bi0  1  0.0  0.0  0.34  1.0

data_NaTcBi
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.97
_cell_length_b   4.97
_cell_length_c   6.14
_cell_angle_alpha   90.0
_cell_angle_beta   113.89
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NaTcBi
_chemical_formula_sum   'Na2 Tc2 Bi2'
_cell_volume   138.96
_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
  Na  Na0  2  0.0  0.0  0.33  1.0
  Tc  Tc1  2  0.0  0.0  0.78  1.0
  Bi  Bi2  2  0.0  0.0  0.66  1.0

Na Tc Bi
Na Tc Bi 0 2 o o o 1 2 o o o 
NaTcBi crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two NaTcBi clusters. Na(1) is bonded in a distorted single-bond geometry to one Bi(1) atom. The Na(1)-Bi(1) bond length is 2.01 Å. Tc(1) is bonded in a single-bond geometry to one Bi(1) atom. The Tc(1)-Bi(1) bond length is 0.76 Å. Bi(1) is bonded in a linear geometry to one Na(1) and one Tc(1) atom.