The material described by U2Co2Al crystallizes in the tetragonal P4/mbm space group. U(1) is bonded in a 6-coordinate geometry to six equivalent Co(1) and four equivalent Al(1) atoms. Co(1) is bonded in a 8-coordinate geometry to six equivalent U(1) and two equivalent Al(1) atoms. Al(1) is bonded to eight equivalent U(1) and four equivalent Co(1) atoms to form a mixture of face and corner-sharing AlU8Co4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_U2AlCo2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.087
_cell_length_b   7.087
_cell_length_c   3.395
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   170.484
_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  0.672  0.172  0.500  1.0
  U  U1  1  0.172  0.328  0.500  1.0
  U  U2  1  0.828  0.672  0.500  1.0
  U  U3  1  0.328  0.828  0.500  1.0
  Al  Al4  1  0.000  0.000  0.000  1.0
  Al  Al5  1  0.500  0.500  0.000  1.0
  Co  Co6  1  0.863  0.363  0.000  1.0
  Co  Co7  1  0.363  0.137  0.000  1.0
  Co  Co8  1  0.637  0.863  0.000  1.0
  Co  Co9  1  0.137  0.637  0.000  1.0
[/CIF]
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The material described by U2Co2Al crystallizes in the tetragonal P4/mbm space group. U(1) is bonded in a 6-coordinate geometry to six equivalent Co(1) and four equivalent Al(1) atoms. Co(1) is bonded in a 8-coordinate geometry to six equivalent U(1) and two equivalent Al(1) atoms. Al(1) is bonded to eight equivalent U(1) and four equivalent Co(1) atoms to form a mixture of face and corner-sharing AlU8Co4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_U2AlCo2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.087
_cell_length_b   7.087
_cell_length_c   3.395
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   170.484
_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  0.672  0.172  0.500  1.0
  U  U1  1  0.172  0.328  0.500  1.0
  U  U2  1  0.828  0.672  0.500  1.0
  U  U3  1  0.328  0.828  0.500  1.0
  Al  Al4  1  0.000  0.000  0.000  1.0
  Al  Al5  1  0.500  0.500  0.000  1.0
  Co  Co6  1  0.863  0.363  0.000  1.0
  Co  Co7  1  0.363  0.137  0.000  1.0
  Co  Co8  1  0.637  0.863  0.000  1.0
  Co  Co9  1  0.137  0.637  0.000  1.0
[/CIF]
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