The crystal structure described by USiS is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. U(1) is bonded in a 9-coordinate geometry to five equivalent Si(1) and four equivalent S(1) atoms. Si(1) is bonded to five equivalent U(1) atoms to form distorted SiU5 trigonal bipyramids that share corners with twelve equivalent S(1)U4 tetrahedra, corners with four equivalent Si(1)U5 trigonal bipyramids, edges with four equivalent S(1)U4 tetrahedra, and edges with eight equivalent Si(1)U5 trigonal bipyramids. S(1) is bonded to four equivalent U(1) atoms to form distorted SU4 tetrahedra that share corners with four equivalent S(1)U4 tetrahedra, corners with twelve equivalent Si(1)U5 trigonal bipyramids, edges with four equivalent S(1)U4 tetrahedra, and edges with four equivalent Si(1)U5 trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_USiS
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.063
_cell_length_b   4.063
_cell_length_c   7.161
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   118.226
_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
  U  U0  1  0.000  0.500  0.751  1.0
  U  U1  1  0.500  0.000  0.249  1.0
  Si  Si2  1  0.000  0.500  0.365  1.0
  Si  Si3  1  0.500  0.000  0.635  1.0
  S  S4  1  0.500  0.500  0.000  1.0
  S  S5  1  0.000  0.000  0.000  1.0
[/CIF]
.
The crystal structure described by USiS is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. U(1) is bonded in a 9-coordinate geometry to five equivalent Si(1) and four equivalent S(1) atoms. Si(1) is bonded to five equivalent U(1) atoms to form distorted SiU5 trigonal bipyramids that share corners with twelve equivalent S(1)U4 tetrahedra, corners with four equivalent Si(1)U5 trigonal bipyramids, edges with four equivalent S(1)U4 tetrahedra, and edges with eight equivalent Si(1)U5 trigonal bipyramids. S(1) is bonded to four equivalent U(1) atoms to form distorted SU4 tetrahedra that share corners with four equivalent S(1)U4 tetrahedra, corners with twelve equivalent Si(1)U5 trigonal bipyramids, edges with four equivalent S(1)U4 tetrahedra, and edges with four equivalent Si(1)U5 trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_USiS
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.063
_cell_length_b   4.063
_cell_length_c   7.161
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   118.226
_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
  U  U0  1  0.000  0.500  0.751  1.0
  U  U1  1  0.500  0.000  0.249  1.0
  Si  Si2  1  0.000  0.500  0.365  1.0
  Si  Si3  1  0.500  0.000  0.635  1.0
  S  S4  1  0.500  0.500  0.000  1.0
  S  S5  1  0.000  0.000  0.000  1.0
[/CIF]
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