The crystal structure described by ErRh5 crystallizes in the hexagonal P6/mmm space group. Er(1) is bonded in a distorted hexagonal planar geometry to six equivalent Rh(2) and twelve equivalent Rh(1) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded to four equivalent Er(1), four equivalent Rh(1), and four equivalent Rh(2) atoms to form a mixture of face, corner, and edge-sharing RhEr4Rh8 cuboctahedra. In the second Rh site, Rh(2) is bonded in a 12-coordinate geometry to three equivalent Er(1), three equivalent Rh(2), and six equivalent Rh(1) atoms. is represented by the CIF card [CIF]
data_ErRh5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.227
_cell_length_b   5.227
_cell_length_c   4.338
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   102.626
_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
  Er  Er0  1  0.000  0.000  0.000  1.0
  Rh  Rh1  1  0.000  0.500  0.500  1.0
  Rh  Rh2  1  0.333  0.667  0.000  1.0
  Rh  Rh3  1  0.667  0.333  0.000  1.0
  Rh  Rh4  1  0.500  0.000  0.500  1.0
  Rh  Rh5  1  0.500  0.500  0.500  1.0
[/CIF]
.
The crystal structure described by ErRh5 crystallizes in the hexagonal P6/mmm space group. Er(1) is bonded in a distorted hexagonal planar geometry to six equivalent Rh(2) and twelve equivalent Rh(1) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded to four equivalent Er(1), four equivalent Rh(1), and four equivalent Rh(2) atoms to form a mixture of face, corner, and edge-sharing RhEr4Rh8 cuboctahedra. In the second Rh site, Rh(2) is bonded in a 12-coordinate geometry to three equivalent Er(1), three equivalent Rh(2), and six equivalent Rh(1) atoms. is represented by the CIF card [CIF]
data_ErRh5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.227
_cell_length_b   5.227
_cell_length_c   4.338
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   102.626
_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
  Er  Er0  1  0.000  0.000  0.000  1.0
  Rh  Rh1  1  0.000  0.500  0.500  1.0
  Rh  Rh2  1  0.333  0.667  0.000  1.0
  Rh  Rh3  1  0.667  0.333  0.000  1.0
  Rh  Rh4  1  0.500  0.000  0.500  1.0
  Rh  Rh5  1  0.500  0.500  0.500  1.0
[/CIF]
.