The crystal structure described by KBiGeS4 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 8-coordinate geometry to one S(4), two equivalent S(1), two equivalent S(3), and three equivalent S(2) atoms. Ge(1) is bonded in a tetrahedral geometry to one S(1), one S(2), one S(3), and one S(4) atom. Bi(1) is bonded in a 5-coordinate geometry to one S(2), one S(3), two equivalent S(1), and two equivalent S(4) atoms. There are four inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to two equivalent K(1), one Ge(1), and two equivalent Bi(1) atoms. In the second S site, S(2) is bonded to three equivalent K(1), one Ge(1), and one Bi(1) atom to form a mixture of distorted edge and corner-sharing SK3GeBi trigonal bipyramids. In the third S site, S(3) is bonded in a 4-coordinate geometry to two equivalent K(1), one Ge(1), and one Bi(1) atom. In the fourth S site, S(4) is bonded in a distorted see-saw-like geometry to one K(1), one Ge(1), and two equivalent Bi(1) atoms. is represented by the CIF file [CIF]
data_KGeBiS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.844
_cell_length_b   6.640
_cell_length_c   17.328
_cell_angle_alpha   72.622
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   751.558
_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  0.253  0.728  0.034  1.0
  K  K1  1  0.753  0.272  0.466  1.0
  K  K2  1  0.747  0.272  0.966  1.0
  K  K3  1  0.247  0.728  0.534  1.0
  Ge  Ge4  1  0.735  0.788  0.156  1.0
  Ge  Ge5  1  0.235  0.212  0.344  1.0
  Ge  Ge6  1  0.265  0.212  0.844  1.0
  Ge  Ge7  1  0.765  0.788  0.656  1.0
  Bi  Bi8  1  0.310  0.763  0.281  1.0
  Bi  Bi9  1  0.810  0.237  0.219  1.0
  Bi  Bi10  1  0.690  0.237  0.719  1.0
  Bi  Bi11  1  0.190  0.763  0.781  1.0
  S  S12  1  0.497  0.008  0.358  1.0
  S  S13  1  0.997  0.992  0.142  1.0
  S  S14  1  0.503  0.992  0.642  1.0
  S  S15  1  0.003  0.008  0.858  1.0
  S  S16  1  0.758  0.576  0.081  1.0
  S  S17  1  0.258  0.424  0.419  1.0
  S  S18  1  0.242  0.424  0.919  1.0
  S  S19  1  0.742  0.576  0.581  1.0
  S  S20  1  0.992  0.987  0.369  1.0
  S  S21  1  0.492  0.013  0.131  1.0
  S  S22  1  0.008  0.013  0.631  1.0
  S  S23  1  0.508  0.987  0.869  1.0
  S  S24  1  0.676  0.589  0.284  1.0
  S  S25  1  0.176  0.411  0.216  1.0
  S  S26  1  0.324  0.411  0.716  1.0
  S  S27  1  0.824  0.589  0.784  1.0
[/CIF]
.
The crystal structure described by KBiGeS4 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 8-coordinate geometry to one S(4), two equivalent S(1), two equivalent S(3), and three equivalent S(2) atoms. Ge(1) is bonded in a tetrahedral geometry to one S(1), one S(2), one S(3), and one S(4) atom. Bi(1) is bonded in a 5-coordinate geometry to one S(2), one S(3), two equivalent S(1), and two equivalent S(4) atoms. There are four inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to two equivalent K(1), one Ge(1), and two equivalent Bi(1) atoms. In the second S site, S(2) is bonded to three equivalent K(1), one Ge(1), and one Bi(1) atom to form a mixture of distorted edge and corner-sharing SK3GeBi trigonal bipyramids. In the third S site, S(3) is bonded in a 4-coordinate geometry to two equivalent K(1), one Ge(1), and one Bi(1) atom. In the fourth S site, S(4) is bonded in a distorted see-saw-like geometry to one K(1), one Ge(1), and two equivalent Bi(1) atoms. is represented by the CIF file [CIF]
data_KGeBiS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.844
_cell_length_b   6.640
_cell_length_c   17.328
_cell_angle_alpha   72.622
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   751.558
_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  0.253  0.728  0.034  1.0
  K  K1  1  0.753  0.272  0.466  1.0
  K  K2  1  0.747  0.272  0.966  1.0
  K  K3  1  0.247  0.728  0.534  1.0
  Ge  Ge4  1  0.735  0.788  0.156  1.0
  Ge  Ge5  1  0.235  0.212  0.344  1.0
  Ge  Ge6  1  0.265  0.212  0.844  1.0
  Ge  Ge7  1  0.765  0.788  0.656  1.0
  Bi  Bi8  1  0.310  0.763  0.281  1.0
  Bi  Bi9  1  0.810  0.237  0.219  1.0
  Bi  Bi10  1  0.690  0.237  0.719  1.0
  Bi  Bi11  1  0.190  0.763  0.781  1.0
  S  S12  1  0.497  0.008  0.358  1.0
  S  S13  1  0.997  0.992  0.142  1.0
  S  S14  1  0.503  0.992  0.642  1.0
  S  S15  1  0.003  0.008  0.858  1.0
  S  S16  1  0.758  0.576  0.081  1.0
  S  S17  1  0.258  0.424  0.419  1.0
  S  S18  1  0.242  0.424  0.919  1.0
  S  S19  1  0.742  0.576  0.581  1.0
  S  S20  1  0.992  0.987  0.369  1.0
  S  S21  1  0.492  0.013  0.131  1.0
  S  S22  1  0.008  0.013  0.631  1.0
  S  S23  1  0.508  0.987  0.869  1.0
  S  S24  1  0.676  0.589  0.284  1.0
  S  S25  1  0.176  0.411  0.216  1.0
  S  S26  1  0.324  0.411  0.716  1.0
  S  S27  1  0.824  0.589  0.784  1.0
[/CIF]
.