The material structure described by U2Cu3Al crystallizes in the hexagonal P6_3/mmc space group. U(1) is bonded in a 10-coordinate geometry to one U(1) and nine equivalent Cu(1) atoms. Cu(1) is bonded in a 12-coordinate geometry to six equivalent U(1), four equivalent Cu(1), and two equivalent Al(1) atoms. Al(1) is bonded in a 6-coordinate geometry to six equivalent Cu(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_U2AlCu3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.451
_cell_length_b   5.451
_cell_length_c   7.671
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   197.414
_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  0.333  0.667  0.414  1.0
  U  U1  1  0.667  0.333  0.914  1.0
  U  U2  1  0.667  0.333  0.586  1.0
  U  U3  1  0.333  0.667  0.086  1.0
  Al  Al4  1  0.000  0.000  0.500  1.0
  Al  Al5  1  0.000  0.000  0.000  1.0
  Cu  Cu6  1  0.175  0.825  0.750  1.0
  Cu  Cu7  1  0.350  0.175  0.250  1.0
  Cu  Cu8  1  0.825  0.175  0.250  1.0
  Cu  Cu9  1  0.650  0.825  0.750  1.0
  Cu  Cu10  1  0.175  0.350  0.750  1.0
  Cu  Cu11  1  0.825  0.650  0.250  1.0
[/CIF]
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The material structure described by U2Cu3Al crystallizes in the hexagonal P6_3/mmc space group. U(1) is bonded in a 10-coordinate geometry to one U(1) and nine equivalent Cu(1) atoms. Cu(1) is bonded in a 12-coordinate geometry to six equivalent U(1), four equivalent Cu(1), and two equivalent Al(1) atoms. Al(1) is bonded in a 6-coordinate geometry to six equivalent Cu(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_U2AlCu3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.451
_cell_length_b   5.451
_cell_length_c   7.671
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   197.414
_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  0.333  0.667  0.414  1.0
  U  U1  1  0.667  0.333  0.914  1.0
  U  U2  1  0.667  0.333  0.586  1.0
  U  U3  1  0.333  0.667  0.086  1.0
  Al  Al4  1  0.000  0.000  0.500  1.0
  Al  Al5  1  0.000  0.000  0.000  1.0
  Cu  Cu6  1  0.175  0.825  0.750  1.0
  Cu  Cu7  1  0.350  0.175  0.250  1.0
  Cu  Cu8  1  0.825  0.175  0.250  1.0
  Cu  Cu9  1  0.650  0.825  0.750  1.0
  Cu  Cu10  1  0.175  0.350  0.750  1.0
  Cu  Cu11  1  0.825  0.650  0.250  1.0
[/CIF]
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