The compound described by K2Ge2S5 crystallizes in the monoclinic C2/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one S(1), one S(4), one S(6), two equivalent S(2), and two equivalent S(3) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to one S(1), one S(2), one S(3), one S(5), and two equivalent S(4) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one S(1), one S(2), one S(3), and one S(6) atom to form corner-sharing GeS4 tetrahedra. In the second Ge site, Ge(2) is bonded to one S(1), one S(2), one S(4), and one S(5) atom to form corner-sharing GeS4 tetrahedra. There are six inequivalent S sites. In the first S site, S(1) is bonded in a distorted water-like geometry to one K(1), one K(2), one Ge(1), and one Ge(2) atom. In the second S site, S(2) is bonded to one K(2), two equivalent K(1), one Ge(1), and one Ge(2) atom to form distorted SK3Ge2 trigonal bipyramids that share corners with five equivalent S(4)K3Ge trigonal pyramids and  an edgeedge with one S(2)K3Ge2 trigonal bipyramid. In the third S site, S(3) is bonded in a 4-coordinate geometry to one K(2), two equivalent K(1), and one Ge(1) atom. In the fourth S site, S(4) is bonded to one K(1), two equivalent K(2), and one Ge(2) atom to form distorted SK3Ge trigonal pyramids that share corners with five equivalent S(2)K3Ge2 trigonal bipyramids and corners with two equivalent S(4)K3Ge trigonal pyramids. In the fifth S site, S(5) is bonded in a 4-coordinate geometry to two equivalent K(2) and two equivalent Ge(2) atoms. In the sixth S site, S(6) is bonded in a distorted water-like geometry to two equivalent K(1) and two equivalent Ge(1) atoms. is represented by the CIF file [CIF]
data_K2Ge2S5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.839
_cell_length_b   10.839
_cell_length_c   8.811
_cell_angle_alpha   79.876
_cell_angle_beta   79.876
_cell_angle_gamma   90.102
_symmetry_Int_Tables_number   1
_cell_volume   1002.556
_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  0.470  0.214  0.880  1.0
  K  K1  1  0.786  0.530  0.620  1.0
  K  K2  1  0.530  0.786  0.120  1.0
  K  K3  1  0.214  0.470  0.380  1.0
  K  K4  1  0.787  0.941  0.617  1.0
  K  K5  1  0.059  0.213  0.883  1.0
  K  K6  1  0.213  0.059  0.383  1.0
  K  K7  1  0.941  0.787  0.117  1.0
  Ge  Ge8  1  0.526  0.267  0.405  1.0
  Ge  Ge9  1  0.733  0.474  0.095  1.0
  Ge  Ge10  1  0.474  0.733  0.595  1.0
  Ge  Ge11  1  0.267  0.526  0.905  1.0
  Ge  Ge12  1  0.269  0.868  0.891  1.0
  Ge  Ge13  1  0.132  0.731  0.609  1.0
  Ge  Ge14  1  0.731  0.132  0.109  1.0
  Ge  Ge15  1  0.868  0.269  0.391  1.0
  S  S16  1  0.541  0.113  0.260  1.0
  S  S17  1  0.887  0.459  0.240  1.0
  S  S18  1  0.459  0.887  0.740  1.0
  S  S19  1  0.113  0.541  0.760  1.0
  S  S20  1  0.320  0.755  0.450  1.0
  S  S21  1  0.245  0.680  0.050  1.0
  S  S22  1  0.680  0.245  0.550  1.0
  S  S23  1  0.755  0.320  0.950  1.0
  S  S24  1  0.350  0.243  0.558  1.0
  S  S25  1  0.757  0.650  0.942  1.0
  S  S26  1  0.650  0.757  0.442  1.0
  S  S27  1  0.243  0.350  0.058  1.0
  S  S28  1  0.754  0.992  0.967  1.0
  S  S29  1  0.008  0.246  0.533  1.0
  S  S30  1  0.246  0.008  0.033  1.0
  S  S31  1  0.992  0.754  0.467  1.0
  S  S32  1  0.886  0.114  0.250  1.0
  S  S33  1  0.114  0.886  0.750  1.0
  S  S34  1  0.544  0.456  0.250  1.0
  S  S35  1  0.456  0.544  0.750  1.0
[/CIF]
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The compound described by K2Ge2S5 crystallizes in the monoclinic C2/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one S(1), one S(4), one S(6), two equivalent S(2), and two equivalent S(3) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to one S(1), one S(2), one S(3), one S(5), and two equivalent S(4) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one S(1), one S(2), one S(3), and one S(6) atom to form corner-sharing GeS4 tetrahedra. In the second Ge site, Ge(2) is bonded to one S(1), one S(2), one S(4), and one S(5) atom to form corner-sharing GeS4 tetrahedra. There are six inequivalent S sites. In the first S site, S(1) is bonded in a distorted water-like geometry to one K(1), one K(2), one Ge(1), and one Ge(2) atom. In the second S site, S(2) is bonded to one K(2), two equivalent K(1), one Ge(1), and one Ge(2) atom to form distorted SK3Ge2 trigonal bipyramids that share corners with five equivalent S(4)K3Ge trigonal pyramids and  an edgeedge with one S(2)K3Ge2 trigonal bipyramid. In the third S site, S(3) is bonded in a 4-coordinate geometry to one K(2), two equivalent K(1), and one Ge(1) atom. In the fourth S site, S(4) is bonded to one K(1), two equivalent K(2), and one Ge(2) atom to form distorted SK3Ge trigonal pyramids that share corners with five equivalent S(2)K3Ge2 trigonal bipyramids and corners with two equivalent S(4)K3Ge trigonal pyramids. In the fifth S site, S(5) is bonded in a 4-coordinate geometry to two equivalent K(2) and two equivalent Ge(2) atoms. In the sixth S site, S(6) is bonded in a distorted water-like geometry to two equivalent K(1) and two equivalent Ge(1) atoms. is represented by the CIF file [CIF]
data_K2Ge2S5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.839
_cell_length_b   10.839
_cell_length_c   8.811
_cell_angle_alpha   79.876
_cell_angle_beta   79.876
_cell_angle_gamma   90.102
_symmetry_Int_Tables_number   1
_cell_volume   1002.556
_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  0.470  0.214  0.880  1.0
  K  K1  1  0.786  0.530  0.620  1.0
  K  K2  1  0.530  0.786  0.120  1.0
  K  K3  1  0.214  0.470  0.380  1.0
  K  K4  1  0.787  0.941  0.617  1.0
  K  K5  1  0.059  0.213  0.883  1.0
  K  K6  1  0.213  0.059  0.383  1.0
  K  K7  1  0.941  0.787  0.117  1.0
  Ge  Ge8  1  0.526  0.267  0.405  1.0
  Ge  Ge9  1  0.733  0.474  0.095  1.0
  Ge  Ge10  1  0.474  0.733  0.595  1.0
  Ge  Ge11  1  0.267  0.526  0.905  1.0
  Ge  Ge12  1  0.269  0.868  0.891  1.0
  Ge  Ge13  1  0.132  0.731  0.609  1.0
  Ge  Ge14  1  0.731  0.132  0.109  1.0
  Ge  Ge15  1  0.868  0.269  0.391  1.0
  S  S16  1  0.541  0.113  0.260  1.0
  S  S17  1  0.887  0.459  0.240  1.0
  S  S18  1  0.459  0.887  0.740  1.0
  S  S19  1  0.113  0.541  0.760  1.0
  S  S20  1  0.320  0.755  0.450  1.0
  S  S21  1  0.245  0.680  0.050  1.0
  S  S22  1  0.680  0.245  0.550  1.0
  S  S23  1  0.755  0.320  0.950  1.0
  S  S24  1  0.350  0.243  0.558  1.0
  S  S25  1  0.757  0.650  0.942  1.0
  S  S26  1  0.650  0.757  0.442  1.0
  S  S27  1  0.243  0.350  0.058  1.0
  S  S28  1  0.754  0.992  0.967  1.0
  S  S29  1  0.008  0.246  0.533  1.0
  S  S30  1  0.246  0.008  0.033  1.0
  S  S31  1  0.992  0.754  0.467  1.0
  S  S32  1  0.886  0.114  0.250  1.0
  S  S33  1  0.114  0.886  0.750  1.0
  S  S34  1  0.544  0.456  0.250  1.0
  S  S35  1  0.456  0.544  0.750  1.0
[/CIF]
.