data_Rb2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.68
_cell_length_b   4.68
_cell_length_c   7.59
_cell_angle_alpha   90.52
_cell_angle_beta   90.52
_cell_angle_gamma   59.97
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Rb2C
_chemical_formula_sum   'Rb2 C1'
_cell_volume   143.79
_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  0.32  0.0  0.03  1.0
  Rb  Rb2  1  0.7  0.0  0.56  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   4.68
_cell_length_b   8.1
_cell_length_c   7.59
_cell_angle_alpha   90.0
_cell_angle_beta   90.52
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Rb2C
_chemical_formula_sum   'Rb4 C2'
_cell_volume   287.58
_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  0.18  0.5  0.97  1.0
  Rb  Rb1  2  0.3  0.0  0.44  1.0
  C  C2  2  0.0  0.0  0.0  1.0

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