The material described by K(USe3)2 crystallizes in the orthorhombic Immm space group. K(1) is bonded in a distorted body-centered cubic geometry to eight equivalent Se(2) atoms. U(1) is bonded in a 8-coordinate geometry to four equivalent Se(1) and four equivalent Se(2) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded to four equivalent U(1) atoms to form a mixture of distorted corner and edge-sharing SeU4 trigonal pyramids. In the second Se site, Se(2) is bonded in a 6-coordinate geometry to two equivalent K(1), two equivalent U(1), and two equivalent Se(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_K(USe3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.557
_cell_length_b   11.557
_cell_length_c   11.557
_cell_angle_alpha   159.564
_cell_angle_beta   152.358
_cell_angle_gamma   34.621
_symmetry_Int_Tables_number   1
_cell_volume   249.802
_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  0.000  0.000  0.000  1.0
  U  U1  1  0.321  0.821  0.500  1.0
  U  U2  1  0.679  0.179  0.500  1.0
  Se  Se3  1  0.771  0.771  0.000  1.0
  Se  Se4  1  0.850  0.605  0.245  1.0
  Se  Se5  1  0.150  0.395  0.755  1.0
  Se  Se6  1  0.229  0.229  0.000  1.0
  Se  Se7  1  0.360  0.605  0.755  1.0
  Se  Se8  1  0.640  0.395  0.245  1.0
[/CIF]
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The material described by K(USe3)2 crystallizes in the orthorhombic Immm space group. K(1) is bonded in a distorted body-centered cubic geometry to eight equivalent Se(2) atoms. U(1) is bonded in a 8-coordinate geometry to four equivalent Se(1) and four equivalent Se(2) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded to four equivalent U(1) atoms to form a mixture of distorted corner and edge-sharing SeU4 trigonal pyramids. In the second Se site, Se(2) is bonded in a 6-coordinate geometry to two equivalent K(1), two equivalent U(1), and two equivalent Se(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_K(USe3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.557
_cell_length_b   11.557
_cell_length_c   11.557
_cell_angle_alpha   159.564
_cell_angle_beta   152.358
_cell_angle_gamma   34.621
_symmetry_Int_Tables_number   1
_cell_volume   249.802
_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  0.000  0.000  0.000  1.0
  U  U1  1  0.321  0.821  0.500  1.0
  U  U2  1  0.679  0.179  0.500  1.0
  Se  Se3  1  0.771  0.771  0.000  1.0
  Se  Se4  1  0.850  0.605  0.245  1.0
  Se  Se5  1  0.150  0.395  0.755  1.0
  Se  Se6  1  0.229  0.229  0.000  1.0
  Se  Se7  1  0.360  0.605  0.755  1.0
  Se  Se8  1  0.640  0.395  0.245  1.0
[/CIF]
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