data_MnReB2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.71
_cell_length_b   2.71
_cell_length_c   5.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MnReB2
_chemical_formula_sum   'Mn1 Re1 B2'
_cell_volume   37.53
_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
  Mn  Mn2  1  0.0  0.0  0.26  1.0
  Re  Re3  1  0.35  0.35  0.02  1.0
  B  B0  1  0.0  0.0  0.24  1.0
  B  B1  1  0.35  0.35  0.17  1.0

data_MnReB2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.83
_cell_length_b   3.83
_cell_length_c   5.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   MnReB2
_chemical_formula_sum   'Mn2 Re2 B4'
_cell_volume   75.05
_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
  Mn  Mn0  2  0.0  0.0  0.26  1.0
  Re  Re1  2  0.35  0.0  0.02  1.0
  B  B2  2  0.0  0.0  0.24  1.0
  B  B3  2  0.35  0.0  0.17  1.0

Mn Re B B
ReBMnB is gamma nitrogen-derived structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two boranylidynerhenium molecules and two boron;manganese molecules.