The compound described by Rb3H(SO4)2 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 10-coordinate geometry to one O(3), three equivalent O(1), three equivalent O(2), and three equivalent O(4) atoms. In the second Rb site, Rb(2) is bonded in a 12-coordinate geometry to two equivalent H(1), two equivalent O(1), two equivalent O(2), two equivalent O(4), and four equivalent O(3) atoms. H(1) is bonded in a linear geometry to two equivalent Rb(2) and two equivalent O(3) atoms. S(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(3) is bonded in a distorted water-like geometry to one Rb(1), two equivalent Rb(2), one H(1), and one S(1) atom. In the second O site, O(4) is bonded in a distorted single-bond geometry to one Rb(2), three equivalent Rb(1), and one S(1) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to one Rb(2), three equivalent Rb(1), and one S(1) atom. In the fourth O site, O(2) is bonded in a distorted single-bond geometry to one Rb(2), three equivalent Rb(1), and one S(1) atom. is represented by the CIF file [CIF]
data_Rb3H(SO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.879
_cell_length_b   8.055
_cell_length_c   10.063
_cell_angle_alpha   101.880
_cell_angle_beta   90.000
_cell_angle_gamma   111.402
_symmetry_Int_Tables_number   1
_cell_volume   432.702
_cell_formula_units_Z   2
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  0.384  0.152  1.0
  Rb  Rb1  1  0.033  0.616  0.348  1.0
  Rb  Rb2  1  0.583  0.616  0.848  1.0
  Rb  Rb3  1  0.967  0.384  0.652  1.0
  Rb  Rb4  1  0.247  0.000  0.750  1.0
  Rb  Rb5  1  0.753  0.000  0.250  1.0
  H  H6  1  0.500  0.000  0.500  1.0
  H  H7  1  0.500  0.000  0.000  1.0
  S  S8  1  0.602  0.768  0.535  1.0
  S  S9  1  0.834  0.232  0.965  1.0
  S  S10  1  0.398  0.232  0.465  1.0
  S  S11  1  0.166  0.768  0.035  1.0
  O  O12  1  0.804  0.745  0.603  1.0
  O  O13  1  0.059  0.255  0.897  1.0
  O  O14  1  0.196  0.255  0.397  1.0
  O  O15  1  0.941  0.745  0.103  1.0
  O  O16  1  0.576  0.694  0.388  1.0
  O  O17  1  0.882  0.306  0.112  1.0
  O  O18  1  0.424  0.306  0.612  1.0
  O  O19  1  0.118  0.694  0.888  1.0
  O  O20  1  0.312  0.975  0.056  1.0
  O  O21  1  0.337  0.025  0.444  1.0
  O  O22  1  0.688  0.025  0.944  1.0
  O  O23  1  0.663  0.975  0.556  1.0
  O  O24  1  0.321  0.692  0.096  1.0
  O  O25  1  0.629  0.308  0.404  1.0
  O  O26  1  0.679  0.308  0.904  1.0
  O  O27  1  0.371  0.692  0.596  1.0
[/CIF]
.
The compound described by Rb3H(SO4)2 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 10-coordinate geometry to one O(3), three equivalent O(1), three equivalent O(2), and three equivalent O(4) atoms. In the second Rb site, Rb(2) is bonded in a 12-coordinate geometry to two equivalent H(1), two equivalent O(1), two equivalent O(2), two equivalent O(4), and four equivalent O(3) atoms. H(1) is bonded in a linear geometry to two equivalent Rb(2) and two equivalent O(3) atoms. S(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(3) is bonded in a distorted water-like geometry to one Rb(1), two equivalent Rb(2), one H(1), and one S(1) atom. In the second O site, O(4) is bonded in a distorted single-bond geometry to one Rb(2), three equivalent Rb(1), and one S(1) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to one Rb(2), three equivalent Rb(1), and one S(1) atom. In the fourth O site, O(2) is bonded in a distorted single-bond geometry to one Rb(2), three equivalent Rb(1), and one S(1) atom. is represented by the CIF file [CIF]
data_Rb3H(SO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.879
_cell_length_b   8.055
_cell_length_c   10.063
_cell_angle_alpha   101.880
_cell_angle_beta   90.000
_cell_angle_gamma   111.402
_symmetry_Int_Tables_number   1
_cell_volume   432.702
_cell_formula_units_Z   2
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  0.384  0.152  1.0
  Rb  Rb1  1  0.033  0.616  0.348  1.0
  Rb  Rb2  1  0.583  0.616  0.848  1.0
  Rb  Rb3  1  0.967  0.384  0.652  1.0
  Rb  Rb4  1  0.247  0.000  0.750  1.0
  Rb  Rb5  1  0.753  0.000  0.250  1.0
  H  H6  1  0.500  0.000  0.500  1.0
  H  H7  1  0.500  0.000  0.000  1.0
  S  S8  1  0.602  0.768  0.535  1.0
  S  S9  1  0.834  0.232  0.965  1.0
  S  S10  1  0.398  0.232  0.465  1.0
  S  S11  1  0.166  0.768  0.035  1.0
  O  O12  1  0.804  0.745  0.603  1.0
  O  O13  1  0.059  0.255  0.897  1.0
  O  O14  1  0.196  0.255  0.397  1.0
  O  O15  1  0.941  0.745  0.103  1.0
  O  O16  1  0.576  0.694  0.388  1.0
  O  O17  1  0.882  0.306  0.112  1.0
  O  O18  1  0.424  0.306  0.612  1.0
  O  O19  1  0.118  0.694  0.888  1.0
  O  O20  1  0.312  0.975  0.056  1.0
  O  O21  1  0.337  0.025  0.444  1.0
  O  O22  1  0.688  0.025  0.944  1.0
  O  O23  1  0.663  0.975  0.556  1.0
  O  O24  1  0.321  0.692  0.096  1.0
  O  O25  1  0.629  0.308  0.404  1.0
  O  O26  1  0.679  0.308  0.904  1.0
  O  O27  1  0.371  0.692  0.596  1.0
[/CIF]
.