The structure described by Ce5Ir4 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 7-coordinate geometry to one Ir(3), two equivalent Ir(1), and four equivalent Ir(2) atoms. In the second Ce site, Ce(2) is bonded to two equivalent Ir(1), two equivalent Ir(2), and two equivalent Ir(3) atoms to form distorted corner-sharing CeIr6 octahedra. The corner-sharing octahedral tilt angles range from 49-52°. In the third Ce site, Ce(3) is bonded in a 6-coordinate geometry to one Ir(1), two equivalent Ir(3), and three equivalent Ir(2) atoms. There are three inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 9-coordinate geometry to two equivalent Ce(2), two equivalent Ce(3), four equivalent Ce(1), and one Ir(3) atom. In the second Ir site, Ir(2) is bonded in a 8-coordinate geometry to one Ce(2), three equivalent Ce(3), and four equivalent Ce(1) atoms. In the third Ir site, Ir(3) is bonded in a 9-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), four equivalent Ce(3), and one Ir(1) atom. is represented by the CIF file [CIF]
data_Ce5Ir4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.384
_cell_length_b   7.593
_cell_length_c   14.861
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   833.247
_cell_formula_units_Z   4
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  0.511  0.321  0.907  1.0
  Ce  Ce1  1  0.321  0.021  0.750  1.0
  Ce  Ce2  1  0.341  0.166  0.379  1.0
  Ce  Ce3  1  0.659  0.834  0.879  1.0
  Ce  Ce4  1  0.011  0.179  0.907  1.0
  Ce  Ce5  1  0.159  0.666  0.879  1.0
  Ce  Ce6  1  0.989  0.821  0.407  1.0
  Ce  Ce7  1  0.821  0.479  0.750  1.0
  Ce  Ce8  1  0.841  0.334  0.379  1.0
  Ce  Ce9  1  0.489  0.679  0.093  1.0
  Ce  Ce10  1  0.489  0.679  0.407  1.0
  Ce  Ce11  1  0.659  0.834  0.621  1.0
  Ce  Ce12  1  0.841  0.334  0.121  1.0
  Ce  Ce13  1  0.511  0.321  0.593  1.0
  Ce  Ce14  1  0.011  0.179  0.593  1.0
  Ce  Ce15  1  0.679  0.979  0.250  1.0
  Ce  Ce16  1  0.989  0.821  0.093  1.0
  Ce  Ce17  1  0.341  0.166  0.121  1.0
  Ce  Ce18  1  0.179  0.521  0.250  1.0
  Ce  Ce19  1  0.159  0.666  0.621  1.0
  Ir  Ir20  1  0.692  0.140  0.750  1.0
  Ir  Ir21  1  0.314  0.963  0.962  1.0
  Ir  Ir22  1  0.686  0.037  0.038  1.0
  Ir  Ir23  1  0.814  0.537  0.538  1.0
  Ir  Ir24  1  0.308  0.860  0.250  1.0
  Ir  Ir25  1  0.186  0.463  0.038  1.0
  Ir  Ir26  1  0.460  0.621  0.750  1.0
  Ir  Ir27  1  0.040  0.121  0.250  1.0
  Ir  Ir28  1  0.960  0.879  0.750  1.0
  Ir  Ir29  1  0.314  0.963  0.538  1.0
  Ir  Ir30  1  0.540  0.379  0.250  1.0
  Ir  Ir31  1  0.808  0.640  0.250  1.0
  Ir  Ir32  1  0.686  0.037  0.462  1.0
  Ir  Ir33  1  0.192  0.360  0.750  1.0
  Ir  Ir34  1  0.814  0.537  0.962  1.0
  Ir  Ir35  1  0.186  0.463  0.462  1.0
[/CIF]
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The structure described by Ce5Ir4 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 7-coordinate geometry to one Ir(3), two equivalent Ir(1), and four equivalent Ir(2) atoms. In the second Ce site, Ce(2) is bonded to two equivalent Ir(1), two equivalent Ir(2), and two equivalent Ir(3) atoms to form distorted corner-sharing CeIr6 octahedra. The corner-sharing octahedral tilt angles range from 49-52°. In the third Ce site, Ce(3) is bonded in a 6-coordinate geometry to one Ir(1), two equivalent Ir(3), and three equivalent Ir(2) atoms. There are three inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 9-coordinate geometry to two equivalent Ce(2), two equivalent Ce(3), four equivalent Ce(1), and one Ir(3) atom. In the second Ir site, Ir(2) is bonded in a 8-coordinate geometry to one Ce(2), three equivalent Ce(3), and four equivalent Ce(1) atoms. In the third Ir site, Ir(3) is bonded in a 9-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), four equivalent Ce(3), and one Ir(1) atom. is represented by the CIF file [CIF]
data_Ce5Ir4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.384
_cell_length_b   7.593
_cell_length_c   14.861
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   833.247
_cell_formula_units_Z   4
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  0.511  0.321  0.907  1.0
  Ce  Ce1  1  0.321  0.021  0.750  1.0
  Ce  Ce2  1  0.341  0.166  0.379  1.0
  Ce  Ce3  1  0.659  0.834  0.879  1.0
  Ce  Ce4  1  0.011  0.179  0.907  1.0
  Ce  Ce5  1  0.159  0.666  0.879  1.0
  Ce  Ce6  1  0.989  0.821  0.407  1.0
  Ce  Ce7  1  0.821  0.479  0.750  1.0
  Ce  Ce8  1  0.841  0.334  0.379  1.0
  Ce  Ce9  1  0.489  0.679  0.093  1.0
  Ce  Ce10  1  0.489  0.679  0.407  1.0
  Ce  Ce11  1  0.659  0.834  0.621  1.0
  Ce  Ce12  1  0.841  0.334  0.121  1.0
  Ce  Ce13  1  0.511  0.321  0.593  1.0
  Ce  Ce14  1  0.011  0.179  0.593  1.0
  Ce  Ce15  1  0.679  0.979  0.250  1.0
  Ce  Ce16  1  0.989  0.821  0.093  1.0
  Ce  Ce17  1  0.341  0.166  0.121  1.0
  Ce  Ce18  1  0.179  0.521  0.250  1.0
  Ce  Ce19  1  0.159  0.666  0.621  1.0
  Ir  Ir20  1  0.692  0.140  0.750  1.0
  Ir  Ir21  1  0.314  0.963  0.962  1.0
  Ir  Ir22  1  0.686  0.037  0.038  1.0
  Ir  Ir23  1  0.814  0.537  0.538  1.0
  Ir  Ir24  1  0.308  0.860  0.250  1.0
  Ir  Ir25  1  0.186  0.463  0.038  1.0
  Ir  Ir26  1  0.460  0.621  0.750  1.0
  Ir  Ir27  1  0.040  0.121  0.250  1.0
  Ir  Ir28  1  0.960  0.879  0.750  1.0
  Ir  Ir29  1  0.314  0.963  0.538  1.0
  Ir  Ir30  1  0.540  0.379  0.250  1.0
  Ir  Ir31  1  0.808  0.640  0.250  1.0
  Ir  Ir32  1  0.686  0.037  0.462  1.0
  Ir  Ir33  1  0.192  0.360  0.750  1.0
  Ir  Ir34  1  0.814  0.537  0.962  1.0
  Ir  Ir35  1  0.186  0.463  0.462  1.0
[/CIF]
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