data_Rb2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.5
_cell_length_b   8.5
_cell_length_c   8.5
_cell_angle_alpha   152.77
_cell_angle_beta   152.77
_cell_angle_gamma   38.88
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Rb2C
_chemical_formula_sum   'Rb2 C1'
_cell_volume   128.52
_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  Rb1  1  0.0  0.0  0.72  1.0
  Rb  Rb2  1  0.0  0.0  0.32  1.0
  C  C0  1  0.0  0.0  0.0  1.0

data_Rb2C
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.66
_cell_length_b   5.66
_cell_length_c   8.5
_cell_angle_alpha   90.0
_cell_angle_beta   109.44
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Rb2C
_chemical_formula_sum   'Rb4 C2'
_cell_volume   257.05
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.0  0.0  0.28  1.0
  Rb  Rb1  2  0.0  0.0  0.68  1.0
  C  C2  2  0.0  0.0  0.0  1.0

Rb Rb C
Rb Rb C 0 2 o o + 1 2 o o o 