The structure described by Y4Rh9Si5 crystallizes in the trigonal R-3m space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 20-coordinate geometry to one Y(1), one Y(2), six equivalent Rh(1), six equivalent Rh(2), three equivalent Si(1), and three equivalent Si(3) atoms. In the second Y site, Y(2) is bonded in a 9-coordinate geometry to one Y(1) and nine equivalent Rh(1) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 12-coordinate geometry to two equivalent Y(1), three equivalent Y(2), four equivalent Rh(1), one Si(1), one Si(2), and one Si(3) atom. In the second Rh site, Rh(2) is bonded in a 4-coordinate geometry to four equivalent Y(1), two equivalent Si(1), and two equivalent Si(3) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 6-coordinate geometry to three equivalent Y(1), three equivalent Rh(1), and three equivalent Rh(2) atoms. In the second Si site, Si(2) is bonded in a distorted cuboctahedral geometry to six equivalent Rh(1) atoms. In the third Si site, Si(3) is bonded in a 6-coordinate geometry to three equivalent Y(1), three equivalent Rh(1), and three equivalent Rh(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Y4Si5Rh9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.606
_cell_length_b   11.606
_cell_length_c   11.606
_cell_angle_alpha   27.469
_cell_angle_beta   27.469
_cell_angle_gamma   27.469
_symmetry_Int_Tables_number   1
_cell_volume   293.597
_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
  Y  Y0  1  0.949  0.949  0.949  1.0
  Y  Y1  1  0.851  0.851  0.851  1.0
  Y  Y2  1  0.149  0.149  0.149  1.0
  Y  Y3  1  0.051  0.051  0.051  1.0
  Si  Si4  1  0.278  0.278  0.278  1.0
  Si  Si5  1  0.500  0.500  0.500  1.0
  Si  Si6  1  0.388  0.388  0.388  1.0
  Si  Si7  1  0.722  0.722  0.722  1.0
  Si  Si8  1  0.612  0.612  0.612  1.0
  Rh  Rh9  1  0.608  0.608  0.109  1.0
  Rh  Rh10  1  0.891  0.392  0.392  1.0
  Rh  Rh11  1  0.500  0.000  0.500  1.0
  Rh  Rh12  1  0.392  0.891  0.392  1.0
  Rh  Rh13  1  0.500  0.500  0.000  1.0
  Rh  Rh14  1  0.109  0.608  0.608  1.0
  Rh  Rh15  1  0.000  0.500  0.500  1.0
  Rh  Rh16  1  0.392  0.392  0.891  1.0
  Rh  Rh17  1  0.608  0.109  0.608  1.0
[/CIF]
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The structure described by Y4Rh9Si5 crystallizes in the trigonal R-3m space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 20-coordinate geometry to one Y(1), one Y(2), six equivalent Rh(1), six equivalent Rh(2), three equivalent Si(1), and three equivalent Si(3) atoms. In the second Y site, Y(2) is bonded in a 9-coordinate geometry to one Y(1) and nine equivalent Rh(1) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 12-coordinate geometry to two equivalent Y(1), three equivalent Y(2), four equivalent Rh(1), one Si(1), one Si(2), and one Si(3) atom. In the second Rh site, Rh(2) is bonded in a 4-coordinate geometry to four equivalent Y(1), two equivalent Si(1), and two equivalent Si(3) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 6-coordinate geometry to three equivalent Y(1), three equivalent Rh(1), and three equivalent Rh(2) atoms. In the second Si site, Si(2) is bonded in a distorted cuboctahedral geometry to six equivalent Rh(1) atoms. In the third Si site, Si(3) is bonded in a 6-coordinate geometry to three equivalent Y(1), three equivalent Rh(1), and three equivalent Rh(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Y4Si5Rh9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.606
_cell_length_b   11.606
_cell_length_c   11.606
_cell_angle_alpha   27.469
_cell_angle_beta   27.469
_cell_angle_gamma   27.469
_symmetry_Int_Tables_number   1
_cell_volume   293.597
_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
  Y  Y0  1  0.949  0.949  0.949  1.0
  Y  Y1  1  0.851  0.851  0.851  1.0
  Y  Y2  1  0.149  0.149  0.149  1.0
  Y  Y3  1  0.051  0.051  0.051  1.0
  Si  Si4  1  0.278  0.278  0.278  1.0
  Si  Si5  1  0.500  0.500  0.500  1.0
  Si  Si6  1  0.388  0.388  0.388  1.0
  Si  Si7  1  0.722  0.722  0.722  1.0
  Si  Si8  1  0.612  0.612  0.612  1.0
  Rh  Rh9  1  0.608  0.608  0.109  1.0
  Rh  Rh10  1  0.891  0.392  0.392  1.0
  Rh  Rh11  1  0.500  0.000  0.500  1.0
  Rh  Rh12  1  0.392  0.891  0.392  1.0
  Rh  Rh13  1  0.500  0.500  0.000  1.0
  Rh  Rh14  1  0.109  0.608  0.608  1.0
  Rh  Rh15  1  0.000  0.500  0.500  1.0
  Rh  Rh16  1  0.392  0.392  0.891  1.0
  Rh  Rh17  1  0.608  0.109  0.608  1.0
[/CIF]
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