The material structure described by U4Al crystallizes in the cubic Fd-3m space group. The structure consists of a U4Al framework. U(1) is bonded in a 4-coordinate geometry to three equivalent U(1) and one Al(1) atom. Al(1) is bonded in a tetrahedral geometry to four equivalent U(1) atoms. is represented by the CIF file [CIF]
data_U4Al
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.193
_cell_length_b   7.193
_cell_length_c   7.193
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   263.192
_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  0.409  0.409  0.409  1.0
  U  U1  1  0.409  0.409  0.773  1.0
  U  U2  1  0.409  0.773  0.409  1.0
  U  U3  1  0.841  0.841  0.477  1.0
  U  U4  1  0.841  0.841  0.841  1.0
  U  U5  1  0.773  0.409  0.409  1.0
  U  U6  1  0.841  0.477  0.841  1.0
  U  U7  1  0.477  0.841  0.841  1.0
  Al  Al8  1  0.000  0.000  0.000  1.0
  Al  Al9  1  0.250  0.250  0.250  1.0
[/CIF]
.
The material structure described by U4Al crystallizes in the cubic Fd-3m space group. The structure consists of a U4Al framework. U(1) is bonded in a 4-coordinate geometry to three equivalent U(1) and one Al(1) atom. Al(1) is bonded in a tetrahedral geometry to four equivalent U(1) atoms. is represented by the CIF file [CIF]
data_U4Al
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.193
_cell_length_b   7.193
_cell_length_c   7.193
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   263.192
_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  0.409  0.409  0.409  1.0
  U  U1  1  0.409  0.409  0.773  1.0
  U  U2  1  0.409  0.773  0.409  1.0
  U  U3  1  0.841  0.841  0.477  1.0
  U  U4  1  0.841  0.841  0.841  1.0
  U  U5  1  0.773  0.409  0.409  1.0
  U  U6  1  0.841  0.477  0.841  1.0
  U  U7  1  0.477  0.841  0.841  1.0
  Al  Al8  1  0.000  0.000  0.000  1.0
  Al  Al9  1  0.250  0.250  0.250  1.0
[/CIF]
.