data_B2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.46
_cell_length_b   4.46
_cell_length_c   5.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   B2C
_chemical_formula_sum   'B8 C4'
_cell_volume   102.05
_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
  B  B0  1  0.0  0.0  0.96  1.0
  B  B1  1  0.0  0.0  0.0  1.0
  B  B2  1  0.35  0.36  0.44  1.0
  B  B3  1  0.88  0.51  0.48  1.0
  B  B4  1  0.65  0.36  0.44  1.0
  B  B5  1  0.0  0.01  0.44  1.0
  B  B6  1  0.23  0.85  0.48  1.0
  B  B7  1  0.58  0.51  0.48  1.0
  C  C8  1  0.23  0.29  0.17  1.0
  C  C9  1  0.0  0.58  0.13  1.0
  C  C10  1  0.0  0.58  0.75  1.0
  C  C11  1  0.23  0.29  0.79  1.0

data_B2C
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.46
_cell_length_b   4.46
_cell_length_c   5.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   B2C
_chemical_formula_sum   'B8 C4'
_cell_volume   102.05
_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
  B  B0  1  0.0  0.0  0.0  1.0
  B  B1  1  0.0  0.0  0.96  1.0
  B  B2  1  0.0  0.01  0.44  1.0
  B  B3  1  0.23  0.85  0.48  1.0
  B  B4  1  0.35  0.36  0.44  1.0
  B  B5  1  0.58  0.51  0.48  1.0
  B  B6  1  0.65  0.36  0.44  1.0
  B  B7  1  0.88  0.51  0.48  1.0
  C  C8  1  0.0  0.58  0.13  1.0
  C  C9  1  0.0  0.58  0.75  1.0
  C  C10  1  0.23  0.29  0.17  1.0
  C  C11  1  0.23  0.29  0.79  1.0

B B B B B B B B C C C C
B B B B B B B B C C C C 0 1 o o + 0 8 o o + 0 9 o - + 0 11 o o o 1 8 o o o 1 9 o - o 1 11 o o - 2 7 o o o 2 5 o o o 2 8 o o o 3 4 o o o 3 6 + o o 3 9 + o o 3 10 + o o 4 7 o o o 4 9 + o o 5 6 o - o 6 9 o o o 6 10 o o o 8 9 o o o 9 10 o o - 10 11 o o o 