data_RbC4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.19
_cell_length_b   5.19
_cell_length_c   6.27
_cell_angle_alpha   93.72
_cell_angle_beta   93.72
_cell_angle_gamma   31.24
_symmetry_Int_Tables_number   1
_chemical_formula_structural   RbC4
_chemical_formula_sum   'Rb1 C4'
_cell_volume   87.55
_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  Rb4  1  0.0  0.0  0.0  1.0
  C  C0  1  0.72  0.0  0.75  1.0
  C  C1  1  0.86  0.0  0.51  1.0
  C  C2  1  0.15  0.0  0.46  1.0
  C  C3  1  0.43  0.0  0.8  1.0

data_RbC4
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.8
_cell_length_b   5.19
_cell_length_c   6.27
_cell_angle_alpha   93.72
_cell_angle_beta   90.0
_cell_angle_gamma   105.62
_symmetry_Int_Tables_number   1
_chemical_formula_structural   RbC4
_chemical_formula_sum   'Rb1 C4'
_cell_volume   87.55
_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  0.0  0.0  0.0  1.0
  C  C1  1  0.0  0.14  0.49  1.0
  C  C2  1  0.0  0.28  0.25  1.0
  C  C3  1  0.0  0.57  0.2  1.0
  C  C4  1  0.0  0.85  0.54  1.0

Rb C C C C
Rb C C C C 0 1 - o - 1 4 o o o 1 2 o o o 2 3 + o o 