The compound described by UIr crystallizes in the triclinic P-1 space group. There are four inequivalent U sites. In the first U site, U(1) is bonded in a 8-coordinate geometry to one U(4), two equivalent U(3), one Ir(1), one Ir(2), one Ir(4), and two equivalent Ir(3) atoms. In the second U site, U(2) is bonded in a 8-coordinate geometry to one U(4), one Ir(3), two equivalent Ir(1), two equivalent Ir(2), and two equivalent Ir(4) atoms. In the third U site, U(3) is bonded in a 5-coordinate geometry to one U(3), two equivalent U(1), one Ir(3), and one Ir(4) atom. In the fourth U site, U(4) is bonded in a 3-coordinate geometry to one U(1), one U(2), and one Ir(4) atom. There are four inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 1-coordinate geometry to one U(1), two equivalent U(2), two equivalent Ir(2), two equivalent Ir(4), and three equivalent Ir(3) atoms. In the second Ir site, Ir(2) is bonded in a 10-coordinate geometry to one U(1), two equivalent U(2), one Ir(2), two equivalent Ir(1), two equivalent Ir(3), and two equivalent Ir(4) atoms. In the third Ir site, Ir(3) is bonded in a 11-coordinate geometry to one U(2), one U(3), two equivalent U(1), one Ir(3), one Ir(4), two equivalent Ir(2), and three equivalent Ir(1) atoms. In the fourth Ir site, Ir(4) is bonded in a 10-coordinate geometry to one U(1), one U(3), one U(4), two equivalent U(2), one Ir(3), two equivalent Ir(1), and two equivalent Ir(2) atoms. is represented by the CIF card [CIF]
data_UIr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.676
_cell_length_b   6.746
_cell_length_c   10.258
_cell_angle_alpha   79.780
_cell_angle_beta   82.313
_cell_angle_gamma   78.265
_symmetry_Int_Tables_number   1
_cell_volume   310.196
_cell_formula_units_Z   8
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  0.751  0.968  0.271  1.0
  U  U1  1  0.249  0.032  0.729  1.0
  U  U2  1  0.391  0.540  0.256  1.0
  U  U3  1  0.609  0.460  0.744  1.0
  U  U4  1  0.810  0.007  0.596  1.0
  U  U5  1  0.190  0.993  0.404  1.0
  U  U6  1  0.233  0.395  0.593  1.0
  U  U7  1  0.767  0.605  0.407  1.0
  Ir  Ir8  1  0.105  0.273  0.914  1.0
  Ir  Ir9  1  0.895  0.727  0.086  1.0
  Ir  Ir10  1  0.432  0.698  0.952  1.0
  Ir  Ir11  1  0.568  0.302  0.048  1.0
  Ir  Ir12  1  0.699  0.021  0.884  1.0
  Ir  Ir13  1  0.301  0.979  0.116  1.0
  Ir  Ir14  1  0.984  0.671  0.811  1.0
  Ir  Ir15  1  0.016  0.329  0.189  1.0
[/CIF]
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The compound described by UIr crystallizes in the triclinic P-1 space group. There are four inequivalent U sites. In the first U site, U(1) is bonded in a 8-coordinate geometry to one U(4), two equivalent U(3), one Ir(1), one Ir(2), one Ir(4), and two equivalent Ir(3) atoms. In the second U site, U(2) is bonded in a 8-coordinate geometry to one U(4), one Ir(3), two equivalent Ir(1), two equivalent Ir(2), and two equivalent Ir(4) atoms. In the third U site, U(3) is bonded in a 5-coordinate geometry to one U(3), two equivalent U(1), one Ir(3), and one Ir(4) atom. In the fourth U site, U(4) is bonded in a 3-coordinate geometry to one U(1), one U(2), and one Ir(4) atom. There are four inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 1-coordinate geometry to one U(1), two equivalent U(2), two equivalent Ir(2), two equivalent Ir(4), and three equivalent Ir(3) atoms. In the second Ir site, Ir(2) is bonded in a 10-coordinate geometry to one U(1), two equivalent U(2), one Ir(2), two equivalent Ir(1), two equivalent Ir(3), and two equivalent Ir(4) atoms. In the third Ir site, Ir(3) is bonded in a 11-coordinate geometry to one U(2), one U(3), two equivalent U(1), one Ir(3), one Ir(4), two equivalent Ir(2), and three equivalent Ir(1) atoms. In the fourth Ir site, Ir(4) is bonded in a 10-coordinate geometry to one U(1), one U(3), one U(4), two equivalent U(2), one Ir(3), two equivalent Ir(1), and two equivalent Ir(2) atoms. is represented by the CIF card [CIF]
data_UIr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.676
_cell_length_b   6.746
_cell_length_c   10.258
_cell_angle_alpha   79.780
_cell_angle_beta   82.313
_cell_angle_gamma   78.265
_symmetry_Int_Tables_number   1
_cell_volume   310.196
_cell_formula_units_Z   8
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  0.751  0.968  0.271  1.0
  U  U1  1  0.249  0.032  0.729  1.0
  U  U2  1  0.391  0.540  0.256  1.0
  U  U3  1  0.609  0.460  0.744  1.0
  U  U4  1  0.810  0.007  0.596  1.0
  U  U5  1  0.190  0.993  0.404  1.0
  U  U6  1  0.233  0.395  0.593  1.0
  U  U7  1  0.767  0.605  0.407  1.0
  Ir  Ir8  1  0.105  0.273  0.914  1.0
  Ir  Ir9  1  0.895  0.727  0.086  1.0
  Ir  Ir10  1  0.432  0.698  0.952  1.0
  Ir  Ir11  1  0.568  0.302  0.048  1.0
  Ir  Ir12  1  0.699  0.021  0.884  1.0
  Ir  Ir13  1  0.301  0.979  0.116  1.0
  Ir  Ir14  1  0.984  0.671  0.811  1.0
  Ir  Ir15  1  0.016  0.329  0.189  1.0
[/CIF]
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