data_Zn2CuBi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.19
_cell_length_b   5.19
_cell_length_c   5.19
_cell_angle_alpha   131.9
_cell_angle_beta   131.9
_cell_angle_gamma   70.38
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Zn2CuBi
_chemical_formula_sum   'Zn2 Cu1 Bi1'
_cell_volume   75.77
_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
  Zn  Zn2  1  0.11  0.0  0.12  1.0
  Zn  Zn3  1  0.0  0.11  0.12  1.0
  Cu  Cu1  1  0.0  0.0  0.0  1.0
  Bi  Bi0  1  0.0  0.0  0.24  1.0

data_Zn2CuBi
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.98
_cell_length_b   5.98
_cell_length_c   5.19
_cell_angle_alpha   90.0
_cell_angle_beta   125.19
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Zn2CuBi
_chemical_formula_sum   'Zn4 Cu2 Bi2'
_cell_volume   151.55
_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
  Zn  Zn0  4  0.44  0.44  0.99  1.0
  Cu  Cu1  2  0.0  0.0  0.0  1.0
  Bi  Bi2  2  0.26  0.5  0.76  1.0

Zn Zn Cu Bi
Zn Zn Cu Bi 0 2 o o o 0 3 o o o 1 2 o o o 1 3 o o o 2 3 o o o 
CuZn2Bi is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two CuZn2Bi clusters. Cu(1) is bonded in an L-shaped geometry to two equivalent Zn(1) atoms. Both Cu(1)-Zn(1) bond lengths are 0.49 Å. Zn(1) is bonded in a distorted single-bond geometry to one Cu(1) and one Bi(1) atom. The Zn(1)-Bi(1) bond length is 1.11 Å. Bi(1) is bonded in a 2-coordinate geometry to two equivalent Zn(1) atoms.