The structure described by K5Bi4 crystallizes in the monoclinic C2/m space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to two equivalent Bi(2) and five equivalent Bi(1) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to two equivalent Bi(1) and four equivalent Bi(2) atoms. In the third K site, K(3) is bonded in a distorted square co-planar geometry to four equivalent Bi(2) atoms. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 9-coordinate geometry to two equivalent K(2), five equivalent K(1), one Bi(1), and one Bi(2) atom. In the second Bi site, Bi(2) is bonded in a 9-coordinate geometry to two equivalent K(1), two equivalent K(3), four equivalent K(2), and one Bi(1) atom. is represented by the CIF card [CIF]
data_K5Bi4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.929
_cell_length_b   6.929
_cell_length_c   11.685
_cell_angle_alpha   70.661
_cell_angle_beta   70.661
_cell_angle_gamma   47.532
_symmetry_Int_Tables_number   1
_cell_volume   385.774
_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
  K  K0  1  0.905  0.905  0.388  1.0
  K  K1  1  0.095  0.095  0.612  1.0
  K  K2  1  0.244  0.244  0.166  1.0
  K  K3  1  0.756  0.756  0.834  1.0
  K  K4  1  0.000  0.000  0.000  1.0
  Bi  Bi5  1  0.610  0.610  0.392  1.0
  Bi  Bi6  1  0.390  0.390  0.608  1.0
  Bi  Bi7  1  0.544  0.544  0.171  1.0
  Bi  Bi8  1  0.456  0.456  0.829  1.0
[/CIF]
.
The structure described by K5Bi4 crystallizes in the monoclinic C2/m space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to two equivalent Bi(2) and five equivalent Bi(1) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to two equivalent Bi(1) and four equivalent Bi(2) atoms. In the third K site, K(3) is bonded in a distorted square co-planar geometry to four equivalent Bi(2) atoms. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 9-coordinate geometry to two equivalent K(2), five equivalent K(1), one Bi(1), and one Bi(2) atom. In the second Bi site, Bi(2) is bonded in a 9-coordinate geometry to two equivalent K(1), two equivalent K(3), four equivalent K(2), and one Bi(1) atom. is represented by the CIF card [CIF]
data_K5Bi4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.929
_cell_length_b   6.929
_cell_length_c   11.685
_cell_angle_alpha   70.661
_cell_angle_beta   70.661
_cell_angle_gamma   47.532
_symmetry_Int_Tables_number   1
_cell_volume   385.774
_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
  K  K0  1  0.905  0.905  0.388  1.0
  K  K1  1  0.095  0.095  0.612  1.0
  K  K2  1  0.244  0.244  0.166  1.0
  K  K3  1  0.756  0.756  0.834  1.0
  K  K4  1  0.000  0.000  0.000  1.0
  Bi  Bi5  1  0.610  0.610  0.392  1.0
  Bi  Bi6  1  0.390  0.390  0.608  1.0
  Bi  Bi7  1  0.544  0.544  0.171  1.0
  Bi  Bi8  1  0.456  0.456  0.829  1.0
[/CIF]
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