The crystal structure described by US2 crystallizes in the hexagonal P-62m space group. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 9-coordinate geometry to three equivalent S(2) and six equivalent S(1) atoms. In the second U site, U(2) is bonded in a 9-coordinate geometry to three equivalent S(1) and six equivalent S(2) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded to one U(2) and four equivalent U(1) atoms to form distorted SU5 trigonal bipyramids that share corners with six equivalent S(2)U4 tetrahedra, corners with ten equivalent S(1)U5 trigonal bipyramids, edges with six equivalent S(2)U4 tetrahedra, and edges with six equivalent S(1)U5 trigonal bipyramids. In the second S site, S(2) is bonded to two equivalent U(1) and two equivalent U(2) atoms to form SU4 tetrahedra that share corners with ten equivalent S(2)U4 tetrahedra, corners with six equivalent S(1)U5 trigonal bipyramids, edges with two equivalent S(2)U4 tetrahedra, and edges with six equivalent S(1)U5 trigonal bipyramids. is represented by the CIF card [CIF]
data_US2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.287
_cell_length_b   7.287
_cell_length_c   4.058
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   186.609
_cell_formula_units_Z   3
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  0.667  0.333  0.500  1.0
  U  U1  1  0.333  0.667  0.500  1.0
  U  U2  1  0.000  0.000  0.000  1.0
  S  S3  1  0.000  0.594  0.000  1.0
  S  S4  1  0.406  0.406  0.000  1.0
  S  S5  1  0.594  1.000  0.000  1.0
  S  S6  1  0.259  0.000  0.500  1.0
  S  S7  1  0.741  0.741  0.500  1.0
  S  S8  1  1.000  0.259  0.500  1.0
[/CIF]
.
The crystal structure described by US2 crystallizes in the hexagonal P-62m space group. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 9-coordinate geometry to three equivalent S(2) and six equivalent S(1) atoms. In the second U site, U(2) is bonded in a 9-coordinate geometry to three equivalent S(1) and six equivalent S(2) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded to one U(2) and four equivalent U(1) atoms to form distorted SU5 trigonal bipyramids that share corners with six equivalent S(2)U4 tetrahedra, corners with ten equivalent S(1)U5 trigonal bipyramids, edges with six equivalent S(2)U4 tetrahedra, and edges with six equivalent S(1)U5 trigonal bipyramids. In the second S site, S(2) is bonded to two equivalent U(1) and two equivalent U(2) atoms to form SU4 tetrahedra that share corners with ten equivalent S(2)U4 tetrahedra, corners with six equivalent S(1)U5 trigonal bipyramids, edges with two equivalent S(2)U4 tetrahedra, and edges with six equivalent S(1)U5 trigonal bipyramids. is represented by the CIF card [CIF]
data_US2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.287
_cell_length_b   7.287
_cell_length_c   4.058
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   186.609
_cell_formula_units_Z   3
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  0.667  0.333  0.500  1.0
  U  U1  1  0.333  0.667  0.500  1.0
  U  U2  1  0.000  0.000  0.000  1.0
  S  S3  1  0.000  0.594  0.000  1.0
  S  S4  1  0.406  0.406  0.000  1.0
  S  S5  1  0.594  1.000  0.000  1.0
  S  S6  1  0.259  0.000  0.500  1.0
  S  S7  1  0.741  0.741  0.500  1.0
  S  S8  1  1.000  0.259  0.500  1.0
[/CIF]
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