data_Pr(BC)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.83
_cell_length_b   3.83
_cell_length_c   7.81
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Pr(BC)2
_chemical_formula_sum   'Pr2 B4 C4'
_cell_volume   114.72
_cell_formula_units_Z   2
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
  Pr  Pr0  1  0.0  0.0  0.95  1.0
  Pr  Pr1  1  0.0  0.0  0.86  1.0
  B  B2  1  0.83  0.92  0.91  1.0
  B  B3  1  0.0  0.92  0.91  1.0
  B  B4  1  0.92  0.83  0.0  1.0
  B  B5  1  0.92  0.0  0.0  1.0
  C  C6  1  0.92  0.72  0.91  1.0
  C  C7  1  0.92  0.12  0.91  1.0
  C  C8  1  0.12  0.92  0.0  1.0
  C  C9  1  0.72  0.92  0.0  1.0

data_Pr(BC)2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.83
_cell_length_b   3.83
_cell_length_c   7.81
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Pr(BC)2
_chemical_formula_sum   'Pr2 B4 C4'
_cell_volume   114.72
_cell_formula_units_Z   2
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
  Pr  Pr0  1  0.0  0.0  0.86  1.0
  Pr  Pr1  1  0.0  0.0  0.95  1.0
  B  B2  1  0.0  0.92  0.91  1.0
  B  B3  1  0.83  0.92  0.91  1.0
  B  B4  1  0.92  0.0  0.0  1.0
  B  B5  1  0.92  0.83  0.0  1.0
  C  C6  1  0.12  0.92  0.0  1.0
  C  C7  1  0.72  0.92  0.0  1.0
  C  C8  1  0.92  0.12  0.91  1.0
  C  C9  1  0.92  0.72  0.91  1.0

Pr Pr B B B B C C C C