data_BMoRh2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.75
_cell_length_b   2.75
_cell_length_c   6.64
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BMoRh2
_chemical_formula_sum   'B1 Mo1 Rh2'
_cell_volume   50.18
_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
  B  B0  1  0.0  0.0  0.18  1.0
  Mo  Mo1  1  0.37  0.37  0.74  1.0
  Rh  Rh2  1  0.0  0.0  0.61  1.0
  Rh  Rh3  1  0.37  0.37  0.07  1.0

data_BMoRh2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.89
_cell_length_b   3.89
_cell_length_c   6.64
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BMoRh2
_chemical_formula_sum   'B2 Mo2 Rh4'
_cell_volume   100.37
_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
  B  B0  2  0.0  0.0  0.18  1.0
  Mo  Mo1  2  0.37  0.0  0.74  1.0
  Rh  Rh2  2  0.0  0.0  0.61  1.0
  Rh  Rh3  2  0.37  0.0  0.07  1.0

B Mo Rh Rh
MoRh2B crystallizes in the monoclinic Cm space group. Mo(1) is bonded in a 4-coordinate geometry to one Rh(2) and three equivalent Rh(1) atoms. The Mo(1)-Rh(2) bond length is 2.17 Å. There is one shorter (1.69 Å) and two longer (2.18 Å) Mo(1)-Rh(1) bond lengths. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 1-coordinate geometry to three equivalent Mo(1) and one B(1) atom. The Rh(1)-B(1) bond length is 2.87 Å. In the second Rh site, Rh(2) is bonded in a 5-coordinate geometry to one Mo(1) and four equivalent B(1) atoms. There are a spread of Rh(2)-B(1) bond distances ranging from 1.63-2.54 Å. B(1) is bonded in a 5-coordinate geometry to one Rh(1) and four equivalent Rh(2) atoms.