The compound described by UF3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. U(1) is bonded in a distorted body-centered cubic geometry to six equivalent F(2) and eight equivalent F(1) atoms. There are two inequivalent F sites. In the first F site, F(1) is bonded to four equivalent U(1) atoms to form FU4 tetrahedra that share corners with twelve equivalent F(2)U6 octahedra, corners with sixteen equivalent F(1)U4 tetrahedra, edges with six equivalent F(1)U4 tetrahedra, and faces with four equivalent F(2)U6 octahedra. The corner-sharing octahedral tilt angles are 55°. In the second F site, F(2) is bonded to six equivalent U(1) atoms to form FU6 octahedra that share corners with six equivalent F(2)U6 octahedra, corners with twenty-four equivalent F(1)U4 tetrahedra, edges with twelve equivalent F(2)U6 octahedra, and faces with eight equivalent F(1)U4 tetrahedra. The corner-sharing octahedra are not tilted. is represented by the CIF file [CIF]
data_UF3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.115
_cell_length_b   4.115
_cell_length_c   4.115
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   49.279
_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
  U  U0  1  0.000  0.000  0.000  1.0
  F  F1  1  0.250  0.250  0.250  1.0
  F  F2  1  0.750  0.750  0.750  1.0
  F  F3  1  0.500  0.500  0.500  1.0
[/CIF]
.
The compound described by UF3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. U(1) is bonded in a distorted body-centered cubic geometry to six equivalent F(2) and eight equivalent F(1) atoms. There are two inequivalent F sites. In the first F site, F(1) is bonded to four equivalent U(1) atoms to form FU4 tetrahedra that share corners with twelve equivalent F(2)U6 octahedra, corners with sixteen equivalent F(1)U4 tetrahedra, edges with six equivalent F(1)U4 tetrahedra, and faces with four equivalent F(2)U6 octahedra. The corner-sharing octahedral tilt angles are 55°. In the second F site, F(2) is bonded to six equivalent U(1) atoms to form FU6 octahedra that share corners with six equivalent F(2)U6 octahedra, corners with twenty-four equivalent F(1)U4 tetrahedra, edges with twelve equivalent F(2)U6 octahedra, and faces with eight equivalent F(1)U4 tetrahedra. The corner-sharing octahedra are not tilted. is represented by the CIF file [CIF]
data_UF3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.115
_cell_length_b   4.115
_cell_length_c   4.115
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   49.279
_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
  U  U0  1  0.000  0.000  0.000  1.0
  F  F1  1  0.250  0.250  0.250  1.0
  F  F2  1  0.750  0.750  0.750  1.0
  F  F3  1  0.500  0.500  0.500  1.0
[/CIF]
.