The material structure described by Na3UF8 is Fluorite-derived structured and crystallizes in the orthorhombic Immm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a body-centered cubic geometry to eight equivalent F(1) atoms. In the second Na site, Na(2) is bonded in a body-centered cubic geometry to eight equivalent F(1) atoms. U(1) is bonded in a body-centered cubic geometry to eight equivalent F(1) atoms. F(1) is bonded to one Na(1), two equivalent Na(2), and one U(1) atom to form a mixture of corner and edge-sharing FNa3U tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na3UF8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.577
_cell_length_b   6.577
_cell_length_c   6.577
_cell_angle_alpha   131.623
_cell_angle_beta   131.800
_cell_angle_gamma   70.689
_symmetry_Int_Tables_number   1
_cell_volume   155.312
_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
  Na  Na0  1  0.500  0.500  1.000  1.0
  Na  Na1  1  0.250  0.750  0.500  1.0
  Na  Na2  1  0.750  0.250  0.500  1.0
  U  U3  1  1.000  1.000  1.000  1.0
  F  F4  1  0.883  0.883  0.530  1.0
  F  F5  1  0.883  0.353  0.000  1.0
  F  F6  1  0.353  0.883  1.000  1.0
  F  F7  1  0.353  0.353  0.470  1.0
  F  F8  1  0.647  0.647  0.530  1.0
  F  F9  1  0.647  0.117  0.000  1.0
  F  F10  1  0.117  0.647  1.000  1.0
  F  F11  1  0.117  0.117  0.470  1.0
[/CIF]
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The material structure described by Na3UF8 is Fluorite-derived structured and crystallizes in the orthorhombic Immm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a body-centered cubic geometry to eight equivalent F(1) atoms. In the second Na site, Na(2) is bonded in a body-centered cubic geometry to eight equivalent F(1) atoms. U(1) is bonded in a body-centered cubic geometry to eight equivalent F(1) atoms. F(1) is bonded to one Na(1), two equivalent Na(2), and one U(1) atom to form a mixture of corner and edge-sharing FNa3U tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na3UF8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.577
_cell_length_b   6.577
_cell_length_c   6.577
_cell_angle_alpha   131.623
_cell_angle_beta   131.800
_cell_angle_gamma   70.689
_symmetry_Int_Tables_number   1
_cell_volume   155.312
_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
  Na  Na0  1  0.500  0.500  1.000  1.0
  Na  Na1  1  0.250  0.750  0.500  1.0
  Na  Na2  1  0.750  0.250  0.500  1.0
  U  U3  1  1.000  1.000  1.000  1.0
  F  F4  1  0.883  0.883  0.530  1.0
  F  F5  1  0.883  0.353  0.000  1.0
  F  F6  1  0.353  0.883  1.000  1.0
  F  F7  1  0.353  0.353  0.470  1.0
  F  F8  1  0.647  0.647  0.530  1.0
  F  F9  1  0.647  0.117  0.000  1.0
  F  F10  1  0.117  0.647  1.000  1.0
  F  F11  1  0.117  0.117  0.470  1.0
[/CIF]
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