The compound described by Rb2Ge2S5 crystallizes in the monoclinic C2/c space group. There are two inequivalent Rb sites. In the first Rb site, Rb(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 Rb site, Rb(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 Rb(1), one Rb(2), one Ge(1), and one Ge(2) atom. In the second S site, S(2) is bonded to one Rb(2), two equivalent Rb(1), one Ge(1), and one Ge(2) atom to form distorted edge-sharing SRb3Ge2 trigonal bipyramids. In the third S site, S(3) is bonded in a 4-coordinate geometry to one Rb(2), two equivalent Rb(1), and one Ge(1) atom. In the fourth S site, S(4) is bonded in a 4-coordinate geometry to one Rb(1), two equivalent Rb(2), and one Ge(2) atom. In the fifth S site, S(5) is bonded in a distorted water-like geometry to two equivalent Rb(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 Rb(1) and two equivalent Ge(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb2Ge2S5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.028
_cell_length_b   11.028
_cell_length_c   9.163
_cell_angle_alpha   79.673
_cell_angle_beta   79.673
_cell_angle_gamma   90.166
_symmetry_Int_Tables_number   1
_cell_volume   1077.936
_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
  Rb  Rb0  1  0.476  0.210  0.873  1.0
  Rb  Rb1  1  0.790  0.524  0.627  1.0
  Rb  Rb2  1  0.524  0.790  0.127  1.0
  Rb  Rb3  1  0.210  0.476  0.373  1.0
  Rb  Rb4  1  0.791  0.943  0.626  1.0
  Rb  Rb5  1  0.057  0.209  0.874  1.0
  Rb  Rb6  1  0.209  0.057  0.374  1.0
  Rb  Rb7  1  0.943  0.791  0.126  1.0
  Ge  Ge8  1  0.526  0.267  0.400  1.0
  Ge  Ge9  1  0.733  0.474  0.100  1.0
  Ge  Ge10  1  0.474  0.733  0.600  1.0
  Ge  Ge11  1  0.267  0.526  0.900  1.0
  Ge  Ge12  1  0.270  0.864  0.886  1.0
  Ge  Ge13  1  0.136  0.730  0.614  1.0
  Ge  Ge14  1  0.730  0.136  0.114  1.0
  Ge  Ge15  1  0.864  0.270  0.386  1.0
  S  S16  1  0.543  0.116  0.260  1.0
  S  S17  1  0.884  0.457  0.240  1.0
  S  S18  1  0.457  0.884  0.740  1.0
  S  S19  1  0.116  0.543  0.760  1.0
  S  S20  1  0.322  0.755  0.461  1.0
  S  S21  1  0.245  0.678  0.039  1.0
  S  S22  1  0.678  0.245  0.539  1.0
  S  S23  1  0.755  0.322  0.961  1.0
  S  S24  1  0.353  0.243  0.548  1.0
  S  S25  1  0.757  0.647  0.952  1.0
  S  S26  1  0.647  0.757  0.452  1.0
  S  S27  1  0.243  0.353  0.048  1.0
  S  S28  1  0.753  0.003  0.972  1.0
  S  S29  1  0.997  0.247  0.528  1.0
  S  S30  1  0.247  0.997  0.028  1.0
  S  S31  1  0.003  0.753  0.472  1.0
  S  S32  1  0.883  0.117  0.250  1.0
  S  S33  1  0.117  0.883  0.750  1.0
  S  S34  1  0.547  0.453  0.250  1.0
  S  S35  1  0.453  0.547  0.750  1.0
[/CIF]
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The compound described by Rb2Ge2S5 crystallizes in the monoclinic C2/c space group. There are two inequivalent Rb sites. In the first Rb site, Rb(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 Rb site, Rb(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 Rb(1), one Rb(2), one Ge(1), and one Ge(2) atom. In the second S site, S(2) is bonded to one Rb(2), two equivalent Rb(1), one Ge(1), and one Ge(2) atom to form distorted edge-sharing SRb3Ge2 trigonal bipyramids. In the third S site, S(3) is bonded in a 4-coordinate geometry to one Rb(2), two equivalent Rb(1), and one Ge(1) atom. In the fourth S site, S(4) is bonded in a 4-coordinate geometry to one Rb(1), two equivalent Rb(2), and one Ge(2) atom. In the fifth S site, S(5) is bonded in a distorted water-like geometry to two equivalent Rb(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 Rb(1) and two equivalent Ge(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb2Ge2S5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.028
_cell_length_b   11.028
_cell_length_c   9.163
_cell_angle_alpha   79.673
_cell_angle_beta   79.673
_cell_angle_gamma   90.166
_symmetry_Int_Tables_number   1
_cell_volume   1077.936
_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
  Rb  Rb0  1  0.476  0.210  0.873  1.0
  Rb  Rb1  1  0.790  0.524  0.627  1.0
  Rb  Rb2  1  0.524  0.790  0.127  1.0
  Rb  Rb3  1  0.210  0.476  0.373  1.0
  Rb  Rb4  1  0.791  0.943  0.626  1.0
  Rb  Rb5  1  0.057  0.209  0.874  1.0
  Rb  Rb6  1  0.209  0.057  0.374  1.0
  Rb  Rb7  1  0.943  0.791  0.126  1.0
  Ge  Ge8  1  0.526  0.267  0.400  1.0
  Ge  Ge9  1  0.733  0.474  0.100  1.0
  Ge  Ge10  1  0.474  0.733  0.600  1.0
  Ge  Ge11  1  0.267  0.526  0.900  1.0
  Ge  Ge12  1  0.270  0.864  0.886  1.0
  Ge  Ge13  1  0.136  0.730  0.614  1.0
  Ge  Ge14  1  0.730  0.136  0.114  1.0
  Ge  Ge15  1  0.864  0.270  0.386  1.0
  S  S16  1  0.543  0.116  0.260  1.0
  S  S17  1  0.884  0.457  0.240  1.0
  S  S18  1  0.457  0.884  0.740  1.0
  S  S19  1  0.116  0.543  0.760  1.0
  S  S20  1  0.322  0.755  0.461  1.0
  S  S21  1  0.245  0.678  0.039  1.0
  S  S22  1  0.678  0.245  0.539  1.0
  S  S23  1  0.755  0.322  0.961  1.0
  S  S24  1  0.353  0.243  0.548  1.0
  S  S25  1  0.757  0.647  0.952  1.0
  S  S26  1  0.647  0.757  0.452  1.0
  S  S27  1  0.243  0.353  0.048  1.0
  S  S28  1  0.753  0.003  0.972  1.0
  S  S29  1  0.997  0.247  0.528  1.0
  S  S30  1  0.247  0.997  0.028  1.0
  S  S31  1  0.003  0.753  0.472  1.0
  S  S32  1  0.883  0.117  0.250  1.0
  S  S33  1  0.117  0.883  0.750  1.0
  S  S34  1  0.547  0.453  0.250  1.0
  S  S35  1  0.453  0.547  0.750  1.0
[/CIF]
.