The compound described by UYb2O2Se3 crystallizes in the tetragonal I4mm space group. U(1) is bonded in a 4-coordinate geometry to four equivalent Se(2) and four equivalent O(1) atoms. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 6-coordinate geometry to one Se(1), one Se(2), and four equivalent Se(3) atoms. In the second Yb site, Yb(2) is bonded in a 8-coordinate geometry to four equivalent Se(1) and four equivalent O(1) atoms. There are three inequivalent Se sites. In the first Se site, Se(1) is bonded in a 5-coordinate geometry to one Yb(1) and four equivalent Yb(2) atoms. In the second Se site, Se(2) is bonded in a 5-coordinate geometry to four equivalent U(1) and one Yb(1) atom. In the third Se site, Se(3) is bonded in a 4-coordinate geometry to four equivalent Yb(1) atoms. O(1) is bonded to two equivalent U(1) and two equivalent Yb(2) atoms to form a mixture of corner and edge-sharing OYb2U2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Yb2USe3O2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.200
_cell_length_b   11.200
_cell_length_c   11.200
_cell_angle_alpha   160.084
_cell_angle_beta   160.084
_cell_angle_gamma   28.310
_symmetry_Int_Tables_number   1
_cell_volume   162.950
_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
  Yb  Yb0  1  0.993  0.993  0.000  1.0
  Yb  Yb1  1  0.308  0.308  0.000  1.0
  U  U2  1  0.696  0.696  0.000  1.0
  Se  Se3  1  0.862  0.862  0.000  1.0
  Se  Se4  1  0.128  0.128  0.000  1.0
  Se  Se5  1  0.534  0.534  0.000  1.0
  O  O6  1  0.740  0.240  0.500  1.0
  O  O7  1  0.240  0.740  0.500  1.0
[/CIF]
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The compound described by UYb2O2Se3 crystallizes in the tetragonal I4mm space group. U(1) is bonded in a 4-coordinate geometry to four equivalent Se(2) and four equivalent O(1) atoms. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 6-coordinate geometry to one Se(1), one Se(2), and four equivalent Se(3) atoms. In the second Yb site, Yb(2) is bonded in a 8-coordinate geometry to four equivalent Se(1) and four equivalent O(1) atoms. There are three inequivalent Se sites. In the first Se site, Se(1) is bonded in a 5-coordinate geometry to one Yb(1) and four equivalent Yb(2) atoms. In the second Se site, Se(2) is bonded in a 5-coordinate geometry to four equivalent U(1) and one Yb(1) atom. In the third Se site, Se(3) is bonded in a 4-coordinate geometry to four equivalent Yb(1) atoms. O(1) is bonded to two equivalent U(1) and two equivalent Yb(2) atoms to form a mixture of corner and edge-sharing OYb2U2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Yb2USe3O2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.200
_cell_length_b   11.200
_cell_length_c   11.200
_cell_angle_alpha   160.084
_cell_angle_beta   160.084
_cell_angle_gamma   28.310
_symmetry_Int_Tables_number   1
_cell_volume   162.950
_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
  Yb  Yb0  1  0.993  0.993  0.000  1.0
  Yb  Yb1  1  0.308  0.308  0.000  1.0
  U  U2  1  0.696  0.696  0.000  1.0
  Se  Se3  1  0.862  0.862  0.000  1.0
  Se  Se4  1  0.128  0.128  0.000  1.0
  Se  Se5  1  0.534  0.534  0.000  1.0
  O  O6  1  0.740  0.240  0.500  1.0
  O  O7  1  0.240  0.740  0.500  1.0
[/CIF]
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