The material structure described by Rb8C4O7 crystallizes in the monoclinic Pm space group. There are five inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a distorted T-shaped geometry to one C(3) and two equivalent O(1) atoms. In the second Rb site, Rb(2) is bonded in a 2-coordinate geometry to two equivalent O(3) atoms. In the third Rb site, Rb(3) is bonded in a distorted L-shaped geometry to one C(3), one O(1), and one O(4) atom. In the fourth Rb site, Rb(4) is bonded in a 6-coordinate geometry to one C(1), one C(2), one O(1), one O(2), one O(3), and one O(4) atom. In the fifth Rb site, Rb(5) is bonded in a 4-coordinate geometry to one O(1), one O(3), and two equivalent O(4) atoms. There are three inequivalent C sites. In the first C site, C(1) is bonded in a bent 120 degrees geometry to one Rb(4), one O(1), and one O(4) atom. In the second C site, C(2) is bonded in a single-bond geometry to two equivalent Rb(4) and one O(2) atom. In the third C site, C(3) is bonded in a 3-coordinate geometry to one Rb(1) and two equivalent Rb(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to one Rb(1), one Rb(3), one Rb(4), one Rb(5), and one C(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to two equivalent Rb(4) and one C(2) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Rb(2), one Rb(4), and one Rb(5) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Rb(3), one Rb(4), two equivalent Rb(5), and one C(1) atom. is represented by the CIF file [CIF]
data_Rb8C4O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   15.103
_cell_length_b   5.998
_cell_length_c   6.030
_cell_angle_alpha   65.402
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   496.663
_cell_formula_units_Z   1
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  0.000  0.358  0.336  1.0
  Rb  Rb1  1  0.500  0.408  0.405  1.0
  Rb  Rb2  1  0.132  0.006  0.989  1.0
  Rb  Rb3  1  0.868  0.006  0.989  1.0
  Rb  Rb4  1  0.627  0.004  0.086  1.0
  Rb  Rb5  1  0.373  0.004  0.086  1.0
  Rb  Rb6  1  0.238  0.686  0.653  1.0
  Rb  Rb7  1  0.762  0.686  0.653  1.0
  C  C8  1  0.743  0.384  0.275  1.0
  C  C9  1  0.257  0.384  0.275  1.0
  C  C10  1  0.500  0.815  0.585  1.0
  C  C11  1  0.000  0.795  0.651  1.0
  O  O12  1  0.800  0.222  0.287  1.0
  O  O13  1  0.200  0.222  0.287  1.0
  O  O14  1  0.500  0.796  0.784  1.0
  O  O15  1  0.360  0.373  0.685  1.0
  O  O16  1  0.640  0.373  0.685  1.0
  O  O17  1  0.241  0.614  0.189  1.0
  O  O18  1  0.759  0.614  0.189  1.0
[/CIF]
.
The material structure described by Rb8C4O7 crystallizes in the monoclinic Pm space group. There are five inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a distorted T-shaped geometry to one C(3) and two equivalent O(1) atoms. In the second Rb site, Rb(2) is bonded in a 2-coordinate geometry to two equivalent O(3) atoms. In the third Rb site, Rb(3) is bonded in a distorted L-shaped geometry to one C(3), one O(1), and one O(4) atom. In the fourth Rb site, Rb(4) is bonded in a 6-coordinate geometry to one C(1), one C(2), one O(1), one O(2), one O(3), and one O(4) atom. In the fifth Rb site, Rb(5) is bonded in a 4-coordinate geometry to one O(1), one O(3), and two equivalent O(4) atoms. There are three inequivalent C sites. In the first C site, C(1) is bonded in a bent 120 degrees geometry to one Rb(4), one O(1), and one O(4) atom. In the second C site, C(2) is bonded in a single-bond geometry to two equivalent Rb(4) and one O(2) atom. In the third C site, C(3) is bonded in a 3-coordinate geometry to one Rb(1) and two equivalent Rb(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 1-coordinate geometry to one Rb(1), one Rb(3), one Rb(4), one Rb(5), and one C(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to two equivalent Rb(4) and one C(2) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Rb(2), one Rb(4), and one Rb(5) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Rb(3), one Rb(4), two equivalent Rb(5), and one C(1) atom. is represented by the CIF file [CIF]
data_Rb8C4O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   15.103
_cell_length_b   5.998
_cell_length_c   6.030
_cell_angle_alpha   65.402
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   496.663
_cell_formula_units_Z   1
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  0.000  0.358  0.336  1.0
  Rb  Rb1  1  0.500  0.408  0.405  1.0
  Rb  Rb2  1  0.132  0.006  0.989  1.0
  Rb  Rb3  1  0.868  0.006  0.989  1.0
  Rb  Rb4  1  0.627  0.004  0.086  1.0
  Rb  Rb5  1  0.373  0.004  0.086  1.0
  Rb  Rb6  1  0.238  0.686  0.653  1.0
  Rb  Rb7  1  0.762  0.686  0.653  1.0
  C  C8  1  0.743  0.384  0.275  1.0
  C  C9  1  0.257  0.384  0.275  1.0
  C  C10  1  0.500  0.815  0.585  1.0
  C  C11  1  0.000  0.795  0.651  1.0
  O  O12  1  0.800  0.222  0.287  1.0
  O  O13  1  0.200  0.222  0.287  1.0
  O  O14  1  0.500  0.796  0.784  1.0
  O  O15  1  0.360  0.373  0.685  1.0
  O  O16  1  0.640  0.373  0.685  1.0
  O  O17  1  0.241  0.614  0.189  1.0
  O  O18  1  0.759  0.614  0.189  1.0
[/CIF]
.