The material structure described by Na2UI6 is trigonal omega-derived structured and crystallizes in the cubic Pn-3m space group. Na(1) is bonded in a 6-coordinate geometry to six equivalent I(1) atoms. U(1) is bonded in an octahedral geometry to six equivalent I(1) atoms. I(1) is bonded in a T-shaped geometry to two equivalent Na(1) and one U(1) atom. is represented by the CIF card [CIF]
data_Na2UI6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.902
_cell_length_b   9.902
_cell_length_c   9.902
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   970.966
_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
  Na  Na0  1  0.250  0.750  0.250  1.0
  Na  Na1  1  0.750  0.250  0.250  1.0
  Na  Na2  1  0.750  0.750  0.750  1.0
  Na  Na3  1  0.250  0.250  0.750  1.0
  U  U4  1  0.000  0.000  0.000  1.0
  U  U5  1  0.500  0.500  0.500  1.0
  I  I6  1  0.303  0.000  0.000  1.0
  I  I7  1  0.000  0.303  0.000  1.0
  I  I8  1  0.500  0.500  0.197  1.0
  I  I9  1  0.000  0.697  0.000  1.0
  I  I10  1  0.500  0.803  0.500  1.0
  I  I11  1  0.803  0.500  0.500  1.0
  I  I12  1  0.197  0.500  0.500  1.0
  I  I13  1  0.000  0.000  0.303  1.0
  I  I14  1  0.000  0.000  0.697  1.0
  I  I15  1  0.500  0.197  0.500  1.0
  I  I16  1  0.697  0.000  0.000  1.0
  I  I17  1  0.500  0.500  0.803  1.0
[/CIF]
.
The material structure described by Na2UI6 is trigonal omega-derived structured and crystallizes in the cubic Pn-3m space group. Na(1) is bonded in a 6-coordinate geometry to six equivalent I(1) atoms. U(1) is bonded in an octahedral geometry to six equivalent I(1) atoms. I(1) is bonded in a T-shaped geometry to two equivalent Na(1) and one U(1) atom. is represented by the CIF card [CIF]
data_Na2UI6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.902
_cell_length_b   9.902
_cell_length_c   9.902
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   970.966
_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
  Na  Na0  1  0.250  0.750  0.250  1.0
  Na  Na1  1  0.750  0.250  0.250  1.0
  Na  Na2  1  0.750  0.750  0.750  1.0
  Na  Na3  1  0.250  0.250  0.750  1.0
  U  U4  1  0.000  0.000  0.000  1.0
  U  U5  1  0.500  0.500  0.500  1.0
  I  I6  1  0.303  0.000  0.000  1.0
  I  I7  1  0.000  0.303  0.000  1.0
  I  I8  1  0.500  0.500  0.197  1.0
  I  I9  1  0.000  0.697  0.000  1.0
  I  I10  1  0.500  0.803  0.500  1.0
  I  I11  1  0.803  0.500  0.500  1.0
  I  I12  1  0.197  0.500  0.500  1.0
  I  I13  1  0.000  0.000  0.303  1.0
  I  I14  1  0.000  0.000  0.697  1.0
  I  I15  1  0.500  0.197  0.500  1.0
  I  I16  1  0.697  0.000  0.000  1.0
  I  I17  1  0.500  0.500  0.803  1.0
[/CIF]
.