data_BiC4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.0
_cell_length_b   7.0
_cell_length_c   7.0
_cell_angle_alpha   109.47
_cell_angle_beta   109.47
_cell_angle_gamma   109.47
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BiC4
_chemical_formula_sum   'Bi4 C16'
_cell_volume   263.58
_cell_formula_units_Z   4
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
  Bi  Bi0  1  0.6  0.6  0.6  1.0
  Bi  Bi1  1  0.56  0.44  0.44  1.0
  Bi  Bi2  1  0.44  0.56  0.44  1.0
  Bi  Bi3  1  0.44  0.44  0.56  1.0
  C  C4  1  0.48  0.48  0.48  1.0
  C  C5  1  0.44  0.56  0.56  1.0
  C  C6  1  0.56  0.44  0.56  1.0
  C  C7  1  0.56  0.56  0.44  1.0
  C  C8  1  0.0  0.0  0.77  1.0
  C  C9  1  0.0  0.0  0.3  1.0
  C  C10  1  0.0  0.77  0.0  1.0
  C  C11  1  0.0  0.3  0.0  1.0
  C  C12  1  0.77  0.0  0.0  1.0
  C  C13  1  0.3  0.0  0.0  1.0
  C  C14  1  0.04  0.0  0.24  1.0
  C  C15  1  0.0  0.04  0.8  1.0
  C  C16  1  0.0  0.24  0.04  1.0
  C  C17  1  0.04  0.8  0.0  1.0
  C  C18  1  0.24  0.04  0.0  1.0
  C  C19  1  0.8  0.0  0.04  1.0

data_BiC4
_symmetry_space_group_name_H-M   R3
_cell_length_a   11.42
_cell_length_b   11.42
_cell_length_c   7.0
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   146
_chemical_formula_structural   BiC4
_chemical_formula_sum   'Bi12 C48'
_cell_volume   790.73
_cell_formula_units_Z   12
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  'x+2/3, y+1/3, z+1/3'
  5  '-y+2/3, x-y+1/3, z+1/3'
  6  '-x+y+2/3, -x+1/3, z+1/3'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
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
  Bi  Bi0  9  0.08  0.04  0.48  1.0
  Bi  Bi1  3  0.0  0.0  0.6  1.0
  C  C2  9  0.04  0.08  0.52  1.0
  C  C3  9  0.05  0.14  0.95  1.0
  C  C4  9  0.08  0.15  0.92  1.0
  C  C5  9  0.14  0.09  0.09  1.0
  C  C6  9  0.2  0.1  0.1  1.0
  C  C7  3  0.0  0.0  0.48  1.0

Bi Bi Bi Bi C C C C C C C C C C C C C C C C
Bi Bi Bi Bi C C C C C C C C C C C C C C C C 0 7 o o o 0 4 o o o 0 5 o o o 0 6 o o o 1 7 o o o 1 4 o o o 1 6 o o o 2 5 o o o 2 4 o o o 2 7 o o o 3 5 o o o 3 6 o o o 3 4 o o o 4 5 o o o 4 6 o o o 4 7 o o o 8 15 o o o 9 14 o o o 10 17 o o o 11 16 o o o 12 19 o o o 13 18 o o o 