The crystal structure described by Rb crystallizes in the triclinic P1 space group. There are eight inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one Rb(2), one Rb(6), one Rb(7), two equivalent Rb(3), and two equivalent Rb(8) atoms. In the second Rb site, Rb(2) is bonded in a 6-coordinate geometry to one Rb(1), one Rb(3), two equivalent Rb(4), and two equivalent Rb(6) atoms. In the third Rb site, Rb(3) is bonded in a 6-coordinate geometry to one Rb(2), one Rb(4), one Rb(6), two equivalent Rb(1), and two equivalent Rb(7) atoms. In the fourth Rb site, Rb(4) is bonded in a 6-coordinate geometry to one Rb(3), one Rb(8), two equivalent Rb(2), and two equivalent Rb(5) atoms. In the fifth Rb site, Rb(5) is bonded in a 6-coordinate geometry to one Rb(7), one Rb(8), two equivalent Rb(4), and two equivalent Rb(6) atoms. In the sixth Rb site, Rb(6) is bonded in a 7-coordinate geometry to one Rb(1), one Rb(3), one Rb(7), two equivalent Rb(2), and two equivalent Rb(5) atoms. In the seventh Rb site, Rb(7) is bonded in a 7-coordinate geometry to one Rb(1), one Rb(5), one Rb(6), two equivalent Rb(3), and two equivalent Rb(8) atoms. In the eighth Rb site, Rb(8) is bonded in a 6-coordinate geometry to one Rb(4), one Rb(5), two equivalent Rb(1), and two equivalent Rb(7) atoms. is represented by the CIF file [CIF]
data_Rb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.979
_cell_length_b   9.420
_cell_length_c   9.985
_cell_angle_alpha   102.415
_cell_angle_beta   114.108
_cell_angle_gamma   92.537
_symmetry_Int_Tables_number   1
_cell_volume   744.495
_cell_formula_units_Z   8
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  0.389  0.795  0.234  1.0
  Rb  Rb1  1  0.975  0.821  0.782  1.0
  Rb  Rb2  1  0.895  0.600  0.269  1.0
  Rb  Rb3  1  0.780  0.299  0.751  1.0
  Rb  Rb4  1  0.273  0.289  0.733  1.0
  Rb  Rb5  1  0.453  0.782  0.726  1.0
  Rb  Rb6  1  0.849  0.089  0.230  1.0
  Rb  Rb7  1  0.364  0.303  0.250  1.0
[/CIF]
.
The crystal structure described by Rb crystallizes in the triclinic P1 space group. There are eight inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one Rb(2), one Rb(6), one Rb(7), two equivalent Rb(3), and two equivalent Rb(8) atoms. In the second Rb site, Rb(2) is bonded in a 6-coordinate geometry to one Rb(1), one Rb(3), two equivalent Rb(4), and two equivalent Rb(6) atoms. In the third Rb site, Rb(3) is bonded in a 6-coordinate geometry to one Rb(2), one Rb(4), one Rb(6), two equivalent Rb(1), and two equivalent Rb(7) atoms. In the fourth Rb site, Rb(4) is bonded in a 6-coordinate geometry to one Rb(3), one Rb(8), two equivalent Rb(2), and two equivalent Rb(5) atoms. In the fifth Rb site, Rb(5) is bonded in a 6-coordinate geometry to one Rb(7), one Rb(8), two equivalent Rb(4), and two equivalent Rb(6) atoms. In the sixth Rb site, Rb(6) is bonded in a 7-coordinate geometry to one Rb(1), one Rb(3), one Rb(7), two equivalent Rb(2), and two equivalent Rb(5) atoms. In the seventh Rb site, Rb(7) is bonded in a 7-coordinate geometry to one Rb(1), one Rb(5), one Rb(6), two equivalent Rb(3), and two equivalent Rb(8) atoms. In the eighth Rb site, Rb(8) is bonded in a 6-coordinate geometry to one Rb(4), one Rb(5), two equivalent Rb(1), and two equivalent Rb(7) atoms. is represented by the CIF file [CIF]
data_Rb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.979
_cell_length_b   9.420
_cell_length_c   9.985
_cell_angle_alpha   102.415
_cell_angle_beta   114.108
_cell_angle_gamma   92.537
_symmetry_Int_Tables_number   1
_cell_volume   744.495
_cell_formula_units_Z   8
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  0.389  0.795  0.234  1.0
  Rb  Rb1  1  0.975  0.821  0.782  1.0
  Rb  Rb2  1  0.895  0.600  0.269  1.0
  Rb  Rb3  1  0.780  0.299  0.751  1.0
  Rb  Rb4  1  0.273  0.289  0.733  1.0
  Rb  Rb5  1  0.453  0.782  0.726  1.0
  Rb  Rb6  1  0.849  0.089  0.230  1.0
  Rb  Rb7  1  0.364  0.303  0.250  1.0
[/CIF]
.