The crystal structure described by Rb3Rh is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded to four equivalent Rb(2) and four equivalent Rh(1) atoms to form distorted RbRb4Rh4 tetrahedra that share corners with eight equivalent Rb(2)Rb8Rh4 cuboctahedra, corners with eight equivalent Rb(1)Rb4Rh4 tetrahedra, edges with four equivalent Rb(2)Rb8Rh4 cuboctahedra, edges with twelve equivalent Rb(1)Rb4Rh4 tetrahedra, and faces with six equivalent Rb(1)Rb4Rh4 tetrahedra. In the second Rb site, Rb(2) is bonded to eight equivalent Rb(1) and four equivalent Rh(1) atoms to form distorted RbRb8Rh4 cuboctahedra that share corners with four equivalent Rb(2)Rb8Rh4 cuboctahedra, corners with sixteen equivalent Rb(1)Rb4Rh4 tetrahedra, edges with eight equivalent Rb(2)Rb8Rh4 cuboctahedra, edges with eight equivalent Rb(1)Rb4Rh4 tetrahedra, and faces with four equivalent Rb(2)Rb8Rh4 cuboctahedra. Rh(1) is bonded in a distorted body-centered cubic geometry to four equivalent Rb(2) and eight equivalent Rb(1) atoms. is represented by the CIF file [CIF]
data_Rb3Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.076
_cell_length_b   6.076
_cell_length_c   6.076
_cell_angle_alpha   121.333
_cell_angle_beta   121.333
_cell_angle_gamma   87.706
_symmetry_Int_Tables_number   1
_cell_volume   155.295
_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
  Rb  Rb0  1  0.750  0.250  0.500  1.0
  Rb  Rb1  1  0.250  0.750  0.500  1.0
  Rb  Rb2  1  0.500  0.500  0.000  1.0
  Rh  Rh3  1  0.000  0.000  0.000  1.0
[/CIF]
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The crystal structure described by Rb3Rh is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded to four equivalent Rb(2) and four equivalent Rh(1) atoms to form distorted RbRb4Rh4 tetrahedra that share corners with eight equivalent Rb(2)Rb8Rh4 cuboctahedra, corners with eight equivalent Rb(1)Rb4Rh4 tetrahedra, edges with four equivalent Rb(2)Rb8Rh4 cuboctahedra, edges with twelve equivalent Rb(1)Rb4Rh4 tetrahedra, and faces with six equivalent Rb(1)Rb4Rh4 tetrahedra. In the second Rb site, Rb(2) is bonded to eight equivalent Rb(1) and four equivalent Rh(1) atoms to form distorted RbRb8Rh4 cuboctahedra that share corners with four equivalent Rb(2)Rb8Rh4 cuboctahedra, corners with sixteen equivalent Rb(1)Rb4Rh4 tetrahedra, edges with eight equivalent Rb(2)Rb8Rh4 cuboctahedra, edges with eight equivalent Rb(1)Rb4Rh4 tetrahedra, and faces with four equivalent Rb(2)Rb8Rh4 cuboctahedra. Rh(1) is bonded in a distorted body-centered cubic geometry to four equivalent Rb(2) and eight equivalent Rb(1) atoms. is represented by the CIF file [CIF]
data_Rb3Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.076
_cell_length_b   6.076
_cell_length_c   6.076
_cell_angle_alpha   121.333
_cell_angle_beta   121.333
_cell_angle_gamma   87.706
_symmetry_Int_Tables_number   1
_cell_volume   155.295
_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
  Rb  Rb0  1  0.750  0.250  0.500  1.0
  Rb  Rb1  1  0.250  0.750  0.500  1.0
  Rb  Rb2  1  0.500  0.500  0.000  1.0
  Rh  Rh3  1  0.000  0.000  0.000  1.0
[/CIF]
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