data_BaCuBi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.87
_cell_length_b   3.87
_cell_length_c   8.07
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BaCuBi2
_chemical_formula_sum   'Ba1 Cu1 Bi2'
_cell_volume   121.1
_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
  Ba  Ba0  1  0.0  0.0  0.04  1.0
  Cu  Cu3  1  0.0  0.0  0.0  1.0
  Bi  Bi1  1  0.94  0.94  0.53  1.0
  Bi  Bi2  1  0.94  0.94  0.54  1.0

data_BaCuBi2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.48
_cell_length_b   5.48
_cell_length_c   8.07
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BaCuBi2
_chemical_formula_sum   'Ba2 Cu2 Bi4'
_cell_volume   242.2
_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
  Ba  Ba0  2  0.0  0.0  0.04  1.0
  Cu  Cu1  2  0.0  0.0  0.0  1.0
  Bi  Bi2  2  0.44  0.5  0.53  1.0
  Bi  Bi3  2  0.44  0.5  0.54  1.0

Ba Cu Bi Bi
BaCu(Bi)2 is Cubic alpha N2-derived structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two barium;copper molecules and two bismuth molecules.