The crystal structure described by K3Bi crystallizes in the hexagonal P6_3cm space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a trigonal planar geometry to three equivalent Bi(1) atoms. In the second K site, K(2) is bonded in a trigonal planar geometry to three equivalent Bi(1) atoms. In the third K site, K(3) is bonded in a 3-coordinate geometry to three equivalent Bi(1) atoms. In the fourth K site, K(4) is bonded in a 2-coordinate geometry to four equivalent Bi(1) atoms. Bi(1) is bonded in a 10-coordinate geometry to one K(1), two equivalent K(2), three equivalent K(3), and four equivalent K(4) atoms. is represented by the CIF card [CIF]
data_K3Bi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.721
_cell_length_b   10.721
_cell_length_c   10.975
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   1092.559
_cell_formula_units_Z   6
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  0.000  0.000  0.785  1.0
  K  K1  1  0.000  0.000  0.285  1.0
  K  K2  1  0.667  0.333  0.231  1.0
  K  K3  1  0.333  0.667  0.731  1.0
  K  K4  1  0.667  0.333  0.731  1.0
  K  K5  1  0.333  0.667  0.231  1.0
  K  K6  1  0.311  0.311  0.083  1.0
  K  K7  1  0.000  0.311  0.583  1.0
  K  K8  1  0.311  0.000  0.583  1.0
  K  K9  1  0.689  0.000  0.083  1.0
  K  K10  1  0.000  0.689  0.083  1.0
  K  K11  1  0.689  0.689  0.583  1.0
  K  K12  1  0.354  0.354  0.418  1.0
  K  K13  1  0.000  0.354  0.918  1.0
  K  K14  1  0.354  0.000  0.918  1.0
  K  K15  1  0.646  0.000  0.418  1.0
  K  K16  1  0.000  0.646  0.418  1.0
  K  K17  1  0.646  0.646  0.918  1.0
  Bi  Bi18  1  0.668  0.668  0.250  1.0
  Bi  Bi19  1  0.000  0.668  0.750  1.0
  Bi  Bi20  1  0.668  0.000  0.750  1.0
  Bi  Bi21  1  0.332  0.000  0.250  1.0
  Bi  Bi22  1  0.000  0.332  0.250  1.0
  Bi  Bi23  1  0.332  0.332  0.750  1.0
[/CIF]
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The crystal structure described by K3Bi crystallizes in the hexagonal P6_3cm space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a trigonal planar geometry to three equivalent Bi(1) atoms. In the second K site, K(2) is bonded in a trigonal planar geometry to three equivalent Bi(1) atoms. In the third K site, K(3) is bonded in a 3-coordinate geometry to three equivalent Bi(1) atoms. In the fourth K site, K(4) is bonded in a 2-coordinate geometry to four equivalent Bi(1) atoms. Bi(1) is bonded in a 10-coordinate geometry to one K(1), two equivalent K(2), three equivalent K(3), and four equivalent K(4) atoms. is represented by the CIF card [CIF]
data_K3Bi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.721
_cell_length_b   10.721
_cell_length_c   10.975
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   1092.559
_cell_formula_units_Z   6
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  0.000  0.000  0.785  1.0
  K  K1  1  0.000  0.000  0.285  1.0
  K  K2  1  0.667  0.333  0.231  1.0
  K  K3  1  0.333  0.667  0.731  1.0
  K  K4  1  0.667  0.333  0.731  1.0
  K  K5  1  0.333  0.667  0.231  1.0
  K  K6  1  0.311  0.311  0.083  1.0
  K  K7  1  0.000  0.311  0.583  1.0
  K  K8  1  0.311  0.000  0.583  1.0
  K  K9  1  0.689  0.000  0.083  1.0
  K  K10  1  0.000  0.689  0.083  1.0
  K  K11  1  0.689  0.689  0.583  1.0
  K  K12  1  0.354  0.354  0.418  1.0
  K  K13  1  0.000  0.354  0.918  1.0
  K  K14  1  0.354  0.000  0.918  1.0
  K  K15  1  0.646  0.000  0.418  1.0
  K  K16  1  0.000  0.646  0.418  1.0
  K  K17  1  0.646  0.646  0.918  1.0
  Bi  Bi18  1  0.668  0.668  0.250  1.0
  Bi  Bi19  1  0.000  0.668  0.750  1.0
  Bi  Bi20  1  0.668  0.000  0.750  1.0
  Bi  Bi21  1  0.332  0.000  0.250  1.0
  Bi  Bi22  1  0.000  0.332  0.250  1.0
  Bi  Bi23  1  0.332  0.332  0.750  1.0
[/CIF]
.