The compound described by Rb2S5 crystallizes in the orthorhombic P2_12_12_1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 9-coordinate geometry to one S(3), one S(5), two equivalent S(2), two equivalent S(4), and three equivalent S(1) atoms. In the second Rb site, Rb(2) is bonded in a 9-coordinate geometry to one S(4), two equivalent S(1), two equivalent S(2), and four equivalent S(3) atoms. There are five inequivalent S sites. In the first S site, S(1) is bonded in a 6-coordinate geometry to two equivalent Rb(2), three equivalent Rb(1), and one S(2) atom. In the second S site, S(2) is bonded in a 6-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), one S(1), and one S(5) atom. In the third S site, S(3) is bonded to one Rb(1), four equivalent Rb(2), and one S(4) atom to form a mixture of distorted edge and corner-sharing SRb5S pentagonal pyramids. In the fourth S site, S(4) is bonded in a distorted pentagonal planar geometry to one Rb(2), two equivalent Rb(1), one S(3), and one S(5) atom. In the fifth S site, S(5) is bonded in a distorted trigonal non-coplanar geometry to one Rb(1), one S(2), and one S(4) atom. is represented by the CIF card [CIF]
data_Rb2S5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.597
_cell_length_b   6.816
_cell_length_c   18.666
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   839.371
_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  0.417  0.710  0.324  1.0
  Rb  Rb1  1  0.917  0.790  0.676  1.0
  Rb  Rb2  1  0.583  0.210  0.176  1.0
  Rb  Rb3  1  0.083  0.290  0.824  1.0
  Rb  Rb4  1  0.878  0.574  0.008  1.0
  Rb  Rb5  1  0.378  0.926  0.992  1.0
  Rb  Rb6  1  0.122  0.074  0.492  1.0
  Rb  Rb7  1  0.622  0.426  0.508  1.0
  S  S8  1  0.543  0.706  0.150  1.0
  S  S9  1  0.043  0.794  0.850  1.0
  S  S10  1  0.457  0.206  0.350  1.0
  S  S11  1  0.957  0.294  0.650  1.0
  S  S12  1  0.247  0.623  0.139  1.0
  S  S13  1  0.747  0.877  0.861  1.0
  S  S14  1  0.753  0.123  0.361  1.0
  S  S15  1  0.253  0.377  0.639  1.0
  S  S16  1  0.591  0.923  0.540  1.0
  S  S17  1  0.091  0.577  0.460  1.0
  S  S18  1  0.409  0.423  0.960  1.0
  S  S19  1  0.909  0.077  0.040  1.0
  S  S20  1  0.431  0.912  0.634  1.0
  S  S21  1  0.931  0.588  0.366  1.0
  S  S22  1  0.569  0.412  0.866  1.0
  S  S23  1  0.069  0.088  0.134  1.0
  S  S24  1  0.443  0.176  0.689  1.0
  S  S25  1  0.943  0.324  0.311  1.0
  S  S26  1  0.557  0.676  0.811  1.0
  S  S27  1  0.057  0.824  0.189  1.0
[/CIF]
.
The compound described by Rb2S5 crystallizes in the orthorhombic P2_12_12_1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 9-coordinate geometry to one S(3), one S(5), two equivalent S(2), two equivalent S(4), and three equivalent S(1) atoms. In the second Rb site, Rb(2) is bonded in a 9-coordinate geometry to one S(4), two equivalent S(1), two equivalent S(2), and four equivalent S(3) atoms. There are five inequivalent S sites. In the first S site, S(1) is bonded in a 6-coordinate geometry to two equivalent Rb(2), three equivalent Rb(1), and one S(2) atom. In the second S site, S(2) is bonded in a 6-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), one S(1), and one S(5) atom. In the third S site, S(3) is bonded to one Rb(1), four equivalent Rb(2), and one S(4) atom to form a mixture of distorted edge and corner-sharing SRb5S pentagonal pyramids. In the fourth S site, S(4) is bonded in a distorted pentagonal planar geometry to one Rb(2), two equivalent Rb(1), one S(3), and one S(5) atom. In the fifth S site, S(5) is bonded in a distorted trigonal non-coplanar geometry to one Rb(1), one S(2), and one S(4) atom. is represented by the CIF card [CIF]
data_Rb2S5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.597
_cell_length_b   6.816
_cell_length_c   18.666
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   839.371
_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  0.417  0.710  0.324  1.0
  Rb  Rb1  1  0.917  0.790  0.676  1.0
  Rb  Rb2  1  0.583  0.210  0.176  1.0
  Rb  Rb3  1  0.083  0.290  0.824  1.0
  Rb  Rb4  1  0.878  0.574  0.008  1.0
  Rb  Rb5  1  0.378  0.926  0.992  1.0
  Rb  Rb6  1  0.122  0.074  0.492  1.0
  Rb  Rb7  1  0.622  0.426  0.508  1.0
  S  S8  1  0.543  0.706  0.150  1.0
  S  S9  1  0.043  0.794  0.850  1.0
  S  S10  1  0.457  0.206  0.350  1.0
  S  S11  1  0.957  0.294  0.650  1.0
  S  S12  1  0.247  0.623  0.139  1.0
  S  S13  1  0.747  0.877  0.861  1.0
  S  S14  1  0.753  0.123  0.361  1.0
  S  S15  1  0.253  0.377  0.639  1.0
  S  S16  1  0.591  0.923  0.540  1.0
  S  S17  1  0.091  0.577  0.460  1.0
  S  S18  1  0.409  0.423  0.960  1.0
  S  S19  1  0.909  0.077  0.040  1.0
  S  S20  1  0.431  0.912  0.634  1.0
  S  S21  1  0.931  0.588  0.366  1.0
  S  S22  1  0.569  0.412  0.866  1.0
  S  S23  1  0.069  0.088  0.134  1.0
  S  S24  1  0.443  0.176  0.689  1.0
  S  S25  1  0.943  0.324  0.311  1.0
  S  S26  1  0.557  0.676  0.811  1.0
  S  S27  1  0.057  0.824  0.189  1.0
[/CIF]
.