The compound described by BaRh2Si9 is Magnesium tetraboride-derived structured and crystallizes in the monoclinic C2/c space group. Ba(1) is bonded in a 18-coordinate geometry to two equivalent Si(4), four equivalent Si(5), six equivalent Si(1), and six equivalent Si(2) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 8-coordinate geometry to two equivalent Si(1), two equivalent Si(4), and four equivalent Si(3) atoms. In the second Rh site, Rh(2) is bonded in a 8-coordinate geometry to two equivalent Si(2), two equivalent Si(3), and four equivalent Si(4) atoms. There are five inequivalent Si sites. In the first Si site, Si(1) is bonded in a 1-coordinate geometry to three equivalent Ba(1), one Rh(1), one Si(3), and one Si(5) atom. In the second Si site, Si(2) is bonded in a 1-coordinate geometry to three equivalent Ba(1), one Rh(2), one Si(3), and one Si(5) atom. In the third Si site, Si(3) is bonded in a 8-coordinate geometry to one Rh(2), two equivalent Rh(1), one Si(1), one Si(2), one Si(4), and two equivalent Si(3) atoms. In the fourth Si site, Si(4) is bonded in a 6-coordinate geometry to one Ba(1), one Rh(1), two equivalent Rh(2), one Si(3), and one Si(4) atom. In the fifth Si site, Si(5) is bonded in a 8-coordinate geometry to four equivalent Ba(1), two equivalent Si(1), and two equivalent Si(2) atoms. is represented by the CIF card [CIF]
data_BaSi9Rh2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.215
_cell_length_b   11.215
_cell_length_c   6.278
_cell_angle_alpha   89.919
_cell_angle_beta   89.919
_cell_angle_gamma   147.572
_symmetry_Int_Tables_number   1
_cell_volume   423.458
_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
  Ba  Ba0  1  0.687  0.313  0.750  1.0
  Ba  Ba1  1  0.313  0.687  0.250  1.0
  Si  Si2  1  0.160  0.839  0.524  1.0
  Si  Si3  1  0.161  0.840  0.976  1.0
  Si  Si4  1  0.840  0.161  0.476  1.0
  Si  Si5  1  0.839  0.160  0.024  1.0
  Si  Si6  1  0.114  0.432  0.753  1.0
  Si  Si7  1  0.568  0.886  0.747  1.0
  Si  Si8  1  0.886  0.568  0.247  1.0
  Si  Si9  1  0.432  0.114  0.253  1.0
  Si  Si10  1  0.084  0.173  0.611  1.0
  Si  Si11  1  0.827  0.916  0.889  1.0
  Si  Si12  1  0.916  0.827  0.389  1.0
  Si  Si13  1  0.173  0.084  0.111  1.0
  Si  Si14  1  0.672  0.583  0.889  1.0
  Si  Si15  1  0.417  0.328  0.611  1.0
  Si  Si16  1  0.328  0.417  0.111  1.0
  Si  Si17  1  0.583  0.672  0.389  1.0
  Si  Si18  1  0.251  0.749  0.750  1.0
  Si  Si19  1  0.749  0.251  0.250  1.0
  Rh  Rh20  1  0.070  0.930  0.750  1.0
  Rh  Rh21  1  0.930  0.070  0.250  1.0
  Rh  Rh22  1  0.432  0.568  0.750  1.0
  Rh  Rh23  1  0.568  0.432  0.250  1.0
[/CIF]
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The compound described by BaRh2Si9 is Magnesium tetraboride-derived structured and crystallizes in the monoclinic C2/c space group. Ba(1) is bonded in a 18-coordinate geometry to two equivalent Si(4), four equivalent Si(5), six equivalent Si(1), and six equivalent Si(2) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 8-coordinate geometry to two equivalent Si(1), two equivalent Si(4), and four equivalent Si(3) atoms. In the second Rh site, Rh(2) is bonded in a 8-coordinate geometry to two equivalent Si(2), two equivalent Si(3), and four equivalent Si(4) atoms. There are five inequivalent Si sites. In the first Si site, Si(1) is bonded in a 1-coordinate geometry to three equivalent Ba(1), one Rh(1), one Si(3), and one Si(5) atom. In the second Si site, Si(2) is bonded in a 1-coordinate geometry to three equivalent Ba(1), one Rh(2), one Si(3), and one Si(5) atom. In the third Si site, Si(3) is bonded in a 8-coordinate geometry to one Rh(2), two equivalent Rh(1), one Si(1), one Si(2), one Si(4), and two equivalent Si(3) atoms. In the fourth Si site, Si(4) is bonded in a 6-coordinate geometry to one Ba(1), one Rh(1), two equivalent Rh(2), one Si(3), and one Si(4) atom. In the fifth Si site, Si(5) is bonded in a 8-coordinate geometry to four equivalent Ba(1), two equivalent Si(1), and two equivalent Si(2) atoms. is represented by the CIF card [CIF]
data_BaSi9Rh2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.215
_cell_length_b   11.215
_cell_length_c   6.278
_cell_angle_alpha   89.919
_cell_angle_beta   89.919
_cell_angle_gamma   147.572
_symmetry_Int_Tables_number   1
_cell_volume   423.458
_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
  Ba  Ba0  1  0.687  0.313  0.750  1.0
  Ba  Ba1  1  0.313  0.687  0.250  1.0
  Si  Si2  1  0.160  0.839  0.524  1.0
  Si  Si3  1  0.161  0.840  0.976  1.0
  Si  Si4  1  0.840  0.161  0.476  1.0
  Si  Si5  1  0.839  0.160  0.024  1.0
  Si  Si6  1  0.114  0.432  0.753  1.0
  Si  Si7  1  0.568  0.886  0.747  1.0
  Si  Si8  1  0.886  0.568  0.247  1.0
  Si  Si9  1  0.432  0.114  0.253  1.0
  Si  Si10  1  0.084  0.173  0.611  1.0
  Si  Si11  1  0.827  0.916  0.889  1.0
  Si  Si12  1  0.916  0.827  0.389  1.0
  Si  Si13  1  0.173  0.084  0.111  1.0
  Si  Si14  1  0.672  0.583  0.889  1.0
  Si  Si15  1  0.417  0.328  0.611  1.0
  Si  Si16  1  0.328  0.417  0.111  1.0
  Si  Si17  1  0.583  0.672  0.389  1.0
  Si  Si18  1  0.251  0.749  0.750  1.0
  Si  Si19  1  0.749  0.251  0.250  1.0
  Rh  Rh20  1  0.070  0.930  0.750  1.0
  Rh  Rh21  1  0.930  0.070  0.250  1.0
  Rh  Rh22  1  0.432  0.568  0.750  1.0
  Rh  Rh23  1  0.568  0.432  0.250  1.0
[/CIF]
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