The structure described by RbK2BiSe3 crystallizes in the cubic P2_13 space group. Rb(1) is bonded in a 6-coordinate geometry to six equivalent Se(1) atoms. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to six equivalent Se(1) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to six equivalent Se(1) atoms. Bi(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Se(1) atoms. Se(1) is bonded to two equivalent Rb(1), two equivalent K(1), two equivalent K(2), and one Bi(1) atom to form a mixture of distorted edge, face, and corner-sharing SeK4Rb2Bi pentagonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2RbBiSe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.092
_cell_length_b   10.092
_cell_length_c   10.092
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1027.919
_cell_formula_units_Z   4
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  0.181  0.681  0.819  1.0
  K  K1  1  0.681  0.819  0.181  1.0
  K  K2  1  0.819  0.181  0.681  1.0
  K  K3  1  0.319  0.319  0.319  1.0
  K  K4  1  0.686  0.186  0.314  1.0
  K  K5  1  0.186  0.314  0.686  1.0
  K  K6  1  0.314  0.686  0.186  1.0
  K  K7  1  0.814  0.814  0.814  1.0
  Rb  Rb8  1  0.928  0.428  0.072  1.0
  Rb  Rb9  1  0.428  0.072  0.928  1.0
  Rb  Rb10  1  0.072  0.928  0.428  1.0
  Rb  Rb11  1  0.572  0.572  0.572  1.0
  Bi  Bi12  1  0.468  0.968  0.532  1.0
  Bi  Bi13  1  0.968  0.532  0.468  1.0
  Bi  Bi14  1  0.532  0.468  0.968  1.0
  Bi  Bi15  1  0.032  0.032  0.032  1.0
  Se  Se16  1  0.003  0.777  0.106  1.0
  Se  Se17  1  0.894  0.503  0.723  1.0
  Se  Se18  1  0.277  0.394  0.997  1.0
  Se  Se19  1  0.503  0.723  0.894  1.0
  Se  Se20  1  0.394  0.997  0.277  1.0
  Se  Se21  1  0.777  0.106  0.003  1.0
  Se  Se22  1  0.997  0.277  0.394  1.0
  Se  Se23  1  0.106  0.003  0.777  1.0
  Se  Se24  1  0.723  0.894  0.503  1.0
  Se  Se25  1  0.497  0.223  0.606  1.0
  Se  Se26  1  0.606  0.497  0.223  1.0
  Se  Se27  1  0.223  0.606  0.497  1.0
[/CIF]
.
The structure described by RbK2BiSe3 crystallizes in the cubic P2_13 space group. Rb(1) is bonded in a 6-coordinate geometry to six equivalent Se(1) atoms. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to six equivalent Se(1) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to six equivalent Se(1) atoms. Bi(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Se(1) atoms. Se(1) is bonded to two equivalent Rb(1), two equivalent K(1), two equivalent K(2), and one Bi(1) atom to form a mixture of distorted edge, face, and corner-sharing SeK4Rb2Bi pentagonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2RbBiSe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.092
_cell_length_b   10.092
_cell_length_c   10.092
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1027.919
_cell_formula_units_Z   4
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  0.181  0.681  0.819  1.0
  K  K1  1  0.681  0.819  0.181  1.0
  K  K2  1  0.819  0.181  0.681  1.0
  K  K3  1  0.319  0.319  0.319  1.0
  K  K4  1  0.686  0.186  0.314  1.0
  K  K5  1  0.186  0.314  0.686  1.0
  K  K6  1  0.314  0.686  0.186  1.0
  K  K7  1  0.814  0.814  0.814  1.0
  Rb  Rb8  1  0.928  0.428  0.072  1.0
  Rb  Rb9  1  0.428  0.072  0.928  1.0
  Rb  Rb10  1  0.072  0.928  0.428  1.0
  Rb  Rb11  1  0.572  0.572  0.572  1.0
  Bi  Bi12  1  0.468  0.968  0.532  1.0
  Bi  Bi13  1  0.968  0.532  0.468  1.0
  Bi  Bi14  1  0.532  0.468  0.968  1.0
  Bi  Bi15  1  0.032  0.032  0.032  1.0
  Se  Se16  1  0.003  0.777  0.106  1.0
  Se  Se17  1  0.894  0.503  0.723  1.0
  Se  Se18  1  0.277  0.394  0.997  1.0
  Se  Se19  1  0.503  0.723  0.894  1.0
  Se  Se20  1  0.394  0.997  0.277  1.0
  Se  Se21  1  0.777  0.106  0.003  1.0
  Se  Se22  1  0.997  0.277  0.394  1.0
  Se  Se23  1  0.106  0.003  0.777  1.0
  Se  Se24  1  0.723  0.894  0.503  1.0
  Se  Se25  1  0.497  0.223  0.606  1.0
  Se  Se26  1  0.606  0.497  0.223  1.0
  Se  Se27  1  0.223  0.606  0.497  1.0
[/CIF]
.