The material described by UIr2 is Cubic Laves structured and crystallizes in the cubic Fd-3m space group. U(1) is bonded in a 12-coordinate geometry to twelve equivalent Ir(1) atoms. Ir(1) is bonded to six equivalent U(1) and six equivalent Ir(1) atoms to form a mixture of edge, face, and corner-sharing IrU6Ir6 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_UIr2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.329
_cell_length_b   5.329
_cell_length_c   5.329
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   107.039
_cell_formula_units_Z   2
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
  U  U0  1  0.750  0.750  0.750  1.0
  U  U1  1  0.500  0.500  0.500  1.0
  Ir  Ir2  1  0.125  0.625  0.125  1.0
  Ir  Ir3  1  0.125  0.125  0.625  1.0
  Ir  Ir4  1  0.625  0.125  0.125  1.0
  Ir  Ir5  1  0.125  0.125  0.125  1.0
[/CIF]
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The material described by UIr2 is Cubic Laves structured and crystallizes in the cubic Fd-3m space group. U(1) is bonded in a 12-coordinate geometry to twelve equivalent Ir(1) atoms. Ir(1) is bonded to six equivalent U(1) and six equivalent Ir(1) atoms to form a mixture of edge, face, and corner-sharing IrU6Ir6 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_UIr2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.329
_cell_length_b   5.329
_cell_length_c   5.329
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   107.039
_cell_formula_units_Z   2
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
  U  U0  1  0.750  0.750  0.750  1.0
  U  U1  1  0.500  0.500  0.500  1.0
  Ir  Ir2  1  0.125  0.625  0.125  1.0
  Ir  Ir3  1  0.125  0.125  0.625  1.0
  Ir  Ir4  1  0.625  0.125  0.125  1.0
  Ir  Ir5  1  0.125  0.125  0.125  1.0
[/CIF]
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