The compound described by UOSe is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. U(1) is bonded in a 4-coordinate geometry to five equivalent Se(1) and four equivalent O(1) atoms. Se(1) is bonded in a 5-coordinate geometry to five equivalent U(1) atoms. O(1) is bonded to four equivalent U(1) atoms to form a mixture of corner and edge-sharing OU4 tetrahedra. is represented by the CIF file [CIF]
data_USeO
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.927
_cell_length_b   3.927
_cell_length_c   6.968
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   107.425
_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  0.818  1.0
  U  U1  1  0.500  0.000  0.182  1.0
  Se  Se2  1  0.500  0.000  0.636  1.0
  Se  Se3  1  0.000  0.500  0.364  1.0
  O  O4  1  0.500  0.500  0.000  1.0
  O  O5  1  0.000  0.000  0.000  1.0
[/CIF]
.
The compound described by UOSe is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. U(1) is bonded in a 4-coordinate geometry to five equivalent Se(1) and four equivalent O(1) atoms. Se(1) is bonded in a 5-coordinate geometry to five equivalent U(1) atoms. O(1) is bonded to four equivalent U(1) atoms to form a mixture of corner and edge-sharing OU4 tetrahedra. is represented by the CIF file [CIF]
data_USeO
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.927
_cell_length_b   3.927
_cell_length_c   6.968
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   107.425
_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  0.818  1.0
  U  U1  1  0.500  0.000  0.182  1.0
  Se  Se2  1  0.500  0.000  0.636  1.0
  Se  Se3  1  0.000  0.500  0.364  1.0
  O  O4  1  0.500  0.500  0.000  1.0
  O  O5  1  0.000  0.000  0.000  1.0
[/CIF]
.