The compound described by K2U3(O5I)4 crystallizes in the triclinic P-1 space group. K(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(3), one O(4), one O(5), one O(6), and two equivalent O(9) atoms. There are two inequivalent U sites. In the first U site, U(1) is bonded to one O(2), one O(5), one O(7), one O(8), one O(9), and two equivalent O(1) atoms to form distorted edge-sharing UO7 pentagonal bipyramids. In the second U site, U(2) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(4), and two equivalent O(7) atoms. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one K(1), one U(2), and two equivalent U(1) atoms. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one U(1) and one I(2) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one K(1) and one I(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one K(1) and one U(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(1) and one U(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one K(1), one I(1), and one I(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one U(1), one U(2), and one I(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one U(1) and one I(1) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to two equivalent K(1) and one U(1) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one K(1), one I(1), and one I(2) atom. There are two inequivalent I sites. In the first I site, I(1) is bonded in a 3-coordinate geometry to one O(10), one O(3), one O(6), and one O(8) atom. In the second I site, I(2) is bonded in a distorted see-saw-like geometry to one O(10), one O(2), one O(6), and one O(7) atom. is represented by the CIF file [CIF]
data_K2U3(IO5)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.024
_cell_length_b   7.855
_cell_length_c   9.010
_cell_angle_alpha   92.716
_cell_angle_beta   105.322
_cell_angle_gamma   91.428
_symmetry_Int_Tables_number   1
_cell_volume   478.549
_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
  K  K0  1  0.750  0.398  0.161  1.0
  K  K1  1  0.250  0.602  0.839  1.0
  U  U2  1  0.550  0.915  0.194  1.0
  U  U3  1  0.450  0.085  0.806  1.0
  U  U4  1  0.000  0.000  0.000  1.0
  I  I5  1  0.293  0.349  0.433  1.0
  I  I6  1  0.707  0.651  0.567  1.0
  I  I7  1  0.876  0.204  0.619  1.0
  I  I8  1  0.124  0.796  0.381  1.0
  O  O9  1  0.309  0.986  0.985  1.0
  O  O10  1  0.691  0.014  0.015  1.0
  O  O11  1  0.892  0.893  0.290  1.0
  O  O12  1  0.652  0.470  0.429  1.0
  O  O13  1  0.951  0.783  0.917  1.0
  O  O14  1  0.348  0.530  0.571  1.0
  O  O15  1  0.573  0.133  0.278  1.0
  O  O16  1  0.087  0.591  0.280  1.0
  O  O17  1  0.773  0.096  0.763  1.0
  O  O18  1  0.108  0.107  0.710  1.0
  O  O19  1  0.427  0.189  0.557  1.0
  O  O20  1  0.529  0.695  0.114  1.0
  O  O21  1  0.573  0.811  0.443  1.0
  O  O22  1  0.044  0.284  0.441  1.0
  O  O23  1  0.471  0.305  0.886  1.0
  O  O24  1  0.427  0.867  0.722  1.0
  O  O25  1  0.049  0.217  0.083  1.0
  O  O26  1  0.227  0.904  0.237  1.0
  O  O27  1  0.956  0.716  0.559  1.0
  O  O28  1  0.913  0.409  0.720  1.0
[/CIF]
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The compound described by K2U3(O5I)4 crystallizes in the triclinic P-1 space group. K(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(3), one O(4), one O(5), one O(6), and two equivalent O(9) atoms. There are two inequivalent U sites. In the first U site, U(1) is bonded to one O(2), one O(5), one O(7), one O(8), one O(9), and two equivalent O(1) atoms to form distorted edge-sharing UO7 pentagonal bipyramids. In the second U site, U(2) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(4), and two equivalent O(7) atoms. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one K(1), one U(2), and two equivalent U(1) atoms. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one U(1) and one I(2) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one K(1) and one I(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one K(1) and one U(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(1) and one U(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one K(1), one I(1), and one I(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one U(1), one U(2), and one I(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one U(1) and one I(1) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to two equivalent K(1) and one U(1) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one K(1), one I(1), and one I(2) atom. There are two inequivalent I sites. In the first I site, I(1) is bonded in a 3-coordinate geometry to one O(10), one O(3), one O(6), and one O(8) atom. In the second I site, I(2) is bonded in a distorted see-saw-like geometry to one O(10), one O(2), one O(6), and one O(7) atom. is represented by the CIF file [CIF]
data_K2U3(IO5)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.024
_cell_length_b   7.855
_cell_length_c   9.010
_cell_angle_alpha   92.716
_cell_angle_beta   105.322
_cell_angle_gamma   91.428
_symmetry_Int_Tables_number   1
_cell_volume   478.549
_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
  K  K0  1  0.750  0.398  0.161  1.0
  K  K1  1  0.250  0.602  0.839  1.0
  U  U2  1  0.550  0.915  0.194  1.0
  U  U3  1  0.450  0.085  0.806  1.0
  U  U4  1  0.000  0.000  0.000  1.0
  I  I5  1  0.293  0.349  0.433  1.0
  I  I6  1  0.707  0.651  0.567  1.0
  I  I7  1  0.876  0.204  0.619  1.0
  I  I8  1  0.124  0.796  0.381  1.0
  O  O9  1  0.309  0.986  0.985  1.0
  O  O10  1  0.691  0.014  0.015  1.0
  O  O11  1  0.892  0.893  0.290  1.0
  O  O12  1  0.652  0.470  0.429  1.0
  O  O13  1  0.951  0.783  0.917  1.0
  O  O14  1  0.348  0.530  0.571  1.0
  O  O15  1  0.573  0.133  0.278  1.0
  O  O16  1  0.087  0.591  0.280  1.0
  O  O17  1  0.773  0.096  0.763  1.0
  O  O18  1  0.108  0.107  0.710  1.0
  O  O19  1  0.427  0.189  0.557  1.0
  O  O20  1  0.529  0.695  0.114  1.0
  O  O21  1  0.573  0.811  0.443  1.0
  O  O22  1  0.044  0.284  0.441  1.0
  O  O23  1  0.471  0.305  0.886  1.0
  O  O24  1  0.427  0.867  0.722  1.0
  O  O25  1  0.049  0.217  0.083  1.0
  O  O26  1  0.227  0.904  0.237  1.0
  O  O27  1  0.956  0.716  0.559  1.0
  O  O28  1  0.913  0.409  0.720  1.0
[/CIF]
.