The material structure described by Rh7B3 crystallizes in the hexagonal P6_3mc space group. There are three inequivalent Rh sites. In the first Rh site, Rh(2) is bonded in a 3-coordinate geometry to three equivalent B(1) atoms. In the second Rh site, Rh(1) is bonded in a 3-coordinate geometry to three equivalent B(1) atoms. In the third Rh site, Rh(3) is bonded in a distorted water-like geometry to two equivalent B(1) atoms. B(1) is bonded in a 6-coordinate geometry to one Rh(1), two equivalent Rh(3), and three equivalent Rh(2) atoms. is represented by the CIF file [CIF]
data_B3Rh7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.459
_cell_length_b   7.459
_cell_length_c   4.827
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   232.600
_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
  B  B0  1  0.189  0.378  0.834  1.0
  B  B1  1  0.622  0.811  0.834  1.0
  B  B2  1  0.189  0.811  0.834  1.0
  B  B3  1  0.811  0.622  0.334  1.0
  B  B4  1  0.378  0.189  0.334  1.0
  B  B5  1  0.811  0.189  0.334  1.0
  Rh  Rh6  1  0.667  0.333  0.577  1.0
  Rh  Rh7  1  0.333  0.667  0.077  1.0
  Rh  Rh8  1  0.877  0.755  0.726  1.0
  Rh  Rh9  1  0.245  0.123  0.726  1.0
  Rh  Rh10  1  0.877  0.123  0.726  1.0
  Rh  Rh11  1  0.123  0.245  0.226  1.0
  Rh  Rh12  1  0.755  0.877  0.226  1.0
  Rh  Rh13  1  0.123  0.877  0.226  1.0
  Rh  Rh14  1  0.456  0.912  0.585  1.0
  Rh  Rh15  1  0.088  0.544  0.585  1.0
  Rh  Rh16  1  0.456  0.544  0.585  1.0
  Rh  Rh17  1  0.544  0.088  0.085  1.0
  Rh  Rh18  1  0.912  0.456  0.085  1.0
  Rh  Rh19  1  0.544  0.456  0.085  1.0
[/CIF]
.
The material structure described by Rh7B3 crystallizes in the hexagonal P6_3mc space group. There are three inequivalent Rh sites. In the first Rh site, Rh(2) is bonded in a 3-coordinate geometry to three equivalent B(1) atoms. In the second Rh site, Rh(1) is bonded in a 3-coordinate geometry to three equivalent B(1) atoms. In the third Rh site, Rh(3) is bonded in a distorted water-like geometry to two equivalent B(1) atoms. B(1) is bonded in a 6-coordinate geometry to one Rh(1), two equivalent Rh(3), and three equivalent Rh(2) atoms. is represented by the CIF file [CIF]
data_B3Rh7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.459
_cell_length_b   7.459
_cell_length_c   4.827
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   232.600
_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
  B  B0  1  0.189  0.378  0.834  1.0
  B  B1  1  0.622  0.811  0.834  1.0
  B  B2  1  0.189  0.811  0.834  1.0
  B  B3  1  0.811  0.622  0.334  1.0
  B  B4  1  0.378  0.189  0.334  1.0
  B  B5  1  0.811  0.189  0.334  1.0
  Rh  Rh6  1  0.667  0.333  0.577  1.0
  Rh  Rh7  1  0.333  0.667  0.077  1.0
  Rh  Rh8  1  0.877  0.755  0.726  1.0
  Rh  Rh9  1  0.245  0.123  0.726  1.0
  Rh  Rh10  1  0.877  0.123  0.726  1.0
  Rh  Rh11  1  0.123  0.245  0.226  1.0
  Rh  Rh12  1  0.755  0.877  0.226  1.0
  Rh  Rh13  1  0.123  0.877  0.226  1.0
  Rh  Rh14  1  0.456  0.912  0.585  1.0
  Rh  Rh15  1  0.088  0.544  0.585  1.0
  Rh  Rh16  1  0.456  0.544  0.585  1.0
  Rh  Rh17  1  0.544  0.088  0.085  1.0
  Rh  Rh18  1  0.912  0.456  0.085  1.0
  Rh  Rh19  1  0.544  0.456  0.085  1.0
[/CIF]
.