The structure described by CeIr5 crystallizes in the hexagonal P6/mmm space group. Ce(1) is bonded in a distorted hexagonal planar geometry to six equivalent Ir(1) and twelve equivalent Ir(2) atoms. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 12-coordinate geometry to three equivalent Ce(1), three equivalent Ir(1), and six equivalent Ir(2) atoms. In the second Ir site, Ir(2) is bonded to four equivalent Ce(1), four equivalent Ir(1), and four equivalent Ir(2) atoms to form a mixture of corner, face, and edge-sharing IrCe4Ir8 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_CeIr5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.274
_cell_length_b   5.274
_cell_length_c   4.341
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   104.573
_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
  Ce  Ce0  1  0.000  0.000  0.000  1.0
  Ir  Ir1  1  0.333  0.667  0.000  1.0
  Ir  Ir2  1  0.667  0.333  0.000  1.0
  Ir  Ir3  1  0.500  0.000  0.500  1.0
  Ir  Ir4  1  0.500  0.500  0.500  1.0
  Ir  Ir5  1  0.000  0.500  0.500  1.0
[/CIF]
.
The structure described by CeIr5 crystallizes in the hexagonal P6/mmm space group. Ce(1) is bonded in a distorted hexagonal planar geometry to six equivalent Ir(1) and twelve equivalent Ir(2) atoms. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 12-coordinate geometry to three equivalent Ce(1), three equivalent Ir(1), and six equivalent Ir(2) atoms. In the second Ir site, Ir(2) is bonded to four equivalent Ce(1), four equivalent Ir(1), and four equivalent Ir(2) atoms to form a mixture of corner, face, and edge-sharing IrCe4Ir8 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_CeIr5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.274
_cell_length_b   5.274
_cell_length_c   4.341
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   104.573
_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
  Ce  Ce0  1  0.000  0.000  0.000  1.0
  Ir  Ir1  1  0.333  0.667  0.000  1.0
  Ir  Ir2  1  0.667  0.333  0.000  1.0
  Ir  Ir3  1  0.500  0.000  0.500  1.0
  Ir  Ir4  1  0.500  0.500  0.500  1.0
  Ir  Ir5  1  0.000  0.500  0.500  1.0
[/CIF]
.