The material structure described by RbC crystallizes in the orthorhombic Pnma space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded to two equivalent C(1) and three equivalent C(2) atoms to form distorted edge-sharing RbC5 square pyramids. In the second Rb site, Rb(2) is bonded in a 7-coordinate geometry to three equivalent C(2) and four equivalent C(1) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a 7-coordinate geometry to two equivalent Rb(1), four equivalent Rb(2), and one C(2) atom. In the second C site, C(2) is bonded in a 7-coordinate geometry to three equivalent Rb(1), three equivalent Rb(2), and one C(1) atom. is represented by the CIF file [CIF]
data_RbC
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.801
_cell_length_b   9.475
_cell_length_c   9.855
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   448.252
_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  0.250  0.987  0.669  1.0
  Rb  Rb1  1  0.750  0.013  0.331  1.0
  Rb  Rb2  1  0.250  0.487  0.831  1.0
  Rb  Rb3  1  0.750  0.513  0.169  1.0
  Rb  Rb4  1  0.250  0.339  0.428  1.0
  Rb  Rb5  1  0.750  0.661  0.572  1.0
  Rb  Rb6  1  0.250  0.839  0.072  1.0
  Rb  Rb7  1  0.750  0.161  0.928  1.0
  C  C8  1  0.250  0.669  0.353  1.0
  C  C9  1  0.750  0.331  0.647  1.0
  C  C10  1  0.250  0.169  0.147  1.0
  C  C11  1  0.750  0.831  0.853  1.0
  C  C12  1  0.250  0.789  0.409  1.0
  C  C13  1  0.750  0.211  0.591  1.0
  C  C14  1  0.250  0.289  0.091  1.0
  C  C15  1  0.750  0.711  0.909  1.0
[/CIF]
.
The material structure described by RbC crystallizes in the orthorhombic Pnma space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded to two equivalent C(1) and three equivalent C(2) atoms to form distorted edge-sharing RbC5 square pyramids. In the second Rb site, Rb(2) is bonded in a 7-coordinate geometry to three equivalent C(2) and four equivalent C(1) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a 7-coordinate geometry to two equivalent Rb(1), four equivalent Rb(2), and one C(2) atom. In the second C site, C(2) is bonded in a 7-coordinate geometry to three equivalent Rb(1), three equivalent Rb(2), and one C(1) atom. is represented by the CIF file [CIF]
data_RbC
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.801
_cell_length_b   9.475
_cell_length_c   9.855
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   448.252
_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  0.250  0.987  0.669  1.0
  Rb  Rb1  1  0.750  0.013  0.331  1.0
  Rb  Rb2  1  0.250  0.487  0.831  1.0
  Rb  Rb3  1  0.750  0.513  0.169  1.0
  Rb  Rb4  1  0.250  0.339  0.428  1.0
  Rb  Rb5  1  0.750  0.661  0.572  1.0
  Rb  Rb6  1  0.250  0.839  0.072  1.0
  Rb  Rb7  1  0.750  0.161  0.928  1.0
  C  C8  1  0.250  0.669  0.353  1.0
  C  C9  1  0.750  0.331  0.647  1.0
  C  C10  1  0.250  0.169  0.147  1.0
  C  C11  1  0.750  0.831  0.853  1.0
  C  C12  1  0.250  0.789  0.409  1.0
  C  C13  1  0.750  0.211  0.591  1.0
  C  C14  1  0.250  0.289  0.091  1.0
  C  C15  1  0.750  0.711  0.909  1.0
[/CIF]
.