The material described by Rb3Cr(HO)6 crystallizes in the trigonal R-3c space group. Rb(1) is bonded in a 12-coordinate geometry to four equivalent H(1) and eight equivalent O(1) atoms. Cr(1) is bonded in an octahedral geometry to six equivalent O(1) atoms. H(1) is bonded in a single-bond geometry to two equivalent Rb(1) and one O(1) atom. O(1) is bonded in a distorted single-bond geometry to four equivalent Rb(1), one Cr(1), and one H(1) atom. is represented by the CIF file [CIF]
data_Rb3Cr(HO)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.639
_cell_length_b   7.639
_cell_length_c   7.639
_cell_angle_alpha   95.437
_cell_angle_beta   95.437
_cell_angle_gamma   95.437
_symmetry_Int_Tables_number   1
_cell_volume   439.312
_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  0.626  0.874  0.250  1.0
  Rb  Rb1  1  0.874  0.250  0.626  1.0
  Rb  Rb2  1  0.250  0.626  0.874  1.0
  Rb  Rb3  1  0.126  0.750  0.374  1.0
  Rb  Rb4  1  0.750  0.374  0.126  1.0
  Rb  Rb5  1  0.374  0.126  0.750  1.0
  Cr  Cr6  1  0.500  0.500  0.500  1.0
  Cr  Cr7  1  0.000  0.000  0.000  1.0
  H  H8  1  0.075  0.124  0.312  1.0
  H  H9  1  0.124  0.312  0.075  1.0
  H  H10  1  0.312  0.075  0.124  1.0
  H  H11  1  0.575  0.812  0.624  1.0
  H  H12  1  0.812  0.624  0.575  1.0
  H  H13  1  0.624  0.575  0.812  1.0
  H  H14  1  0.925  0.876  0.688  1.0
  H  H15  1  0.876  0.688  0.925  1.0
  H  H16  1  0.688  0.925  0.876  1.0
  H  H17  1  0.425  0.188  0.376  1.0
  H  H18  1  0.188  0.376  0.425  1.0
  H  H19  1  0.376  0.425  0.188  1.0
  O  O20  1  0.957  0.095  0.252  1.0
  O  O21  1  0.095  0.252  0.957  1.0
  O  O22  1  0.252  0.957  0.095  1.0
  O  O23  1  0.457  0.752  0.595  1.0
  O  O24  1  0.752  0.595  0.457  1.0
  O  O25  1  0.595  0.457  0.752  1.0
  O  O26  1  0.043  0.905  0.748  1.0
  O  O27  1  0.905  0.748  0.043  1.0
  O  O28  1  0.748  0.043  0.905  1.0
  O  O29  1  0.543  0.248  0.405  1.0
  O  O30  1  0.248  0.405  0.543  1.0
  O  O31  1  0.405  0.543  0.248  1.0
[/CIF]
.
The material described by Rb3Cr(HO)6 crystallizes in the trigonal R-3c space group. Rb(1) is bonded in a 12-coordinate geometry to four equivalent H(1) and eight equivalent O(1) atoms. Cr(1) is bonded in an octahedral geometry to six equivalent O(1) atoms. H(1) is bonded in a single-bond geometry to two equivalent Rb(1) and one O(1) atom. O(1) is bonded in a distorted single-bond geometry to four equivalent Rb(1), one Cr(1), and one H(1) atom. is represented by the CIF file [CIF]
data_Rb3Cr(HO)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.639
_cell_length_b   7.639
_cell_length_c   7.639
_cell_angle_alpha   95.437
_cell_angle_beta   95.437
_cell_angle_gamma   95.437
_symmetry_Int_Tables_number   1
_cell_volume   439.312
_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  0.626  0.874  0.250  1.0
  Rb  Rb1  1  0.874  0.250  0.626  1.0
  Rb  Rb2  1  0.250  0.626  0.874  1.0
  Rb  Rb3  1  0.126  0.750  0.374  1.0
  Rb  Rb4  1  0.750  0.374  0.126  1.0
  Rb  Rb5  1  0.374  0.126  0.750  1.0
  Cr  Cr6  1  0.500  0.500  0.500  1.0
  Cr  Cr7  1  0.000  0.000  0.000  1.0
  H  H8  1  0.075  0.124  0.312  1.0
  H  H9  1  0.124  0.312  0.075  1.0
  H  H10  1  0.312  0.075  0.124  1.0
  H  H11  1  0.575  0.812  0.624  1.0
  H  H12  1  0.812  0.624  0.575  1.0
  H  H13  1  0.624  0.575  0.812  1.0
  H  H14  1  0.925  0.876  0.688  1.0
  H  H15  1  0.876  0.688  0.925  1.0
  H  H16  1  0.688  0.925  0.876  1.0
  H  H17  1  0.425  0.188  0.376  1.0
  H  H18  1  0.188  0.376  0.425  1.0
  H  H19  1  0.376  0.425  0.188  1.0
  O  O20  1  0.957  0.095  0.252  1.0
  O  O21  1  0.095  0.252  0.957  1.0
  O  O22  1  0.252  0.957  0.095  1.0
  O  O23  1  0.457  0.752  0.595  1.0
  O  O24  1  0.752  0.595  0.457  1.0
  O  O25  1  0.595  0.457  0.752  1.0
  O  O26  1  0.043  0.905  0.748  1.0
  O  O27  1  0.905  0.748  0.043  1.0
  O  O28  1  0.748  0.043  0.905  1.0
  O  O29  1  0.543  0.248  0.405  1.0
  O  O30  1  0.248  0.405  0.543  1.0
  O  O31  1  0.405  0.543  0.248  1.0
[/CIF]
.