The crystal structure described by YbCuAl crystallizes in the orthorhombic Imma space group. Yb(1) is bonded in a 12-coordinate geometry to six equivalent Cu(1) and six equivalent Al(1) atoms. Cu(1) is bonded to six equivalent Yb(1), two equivalent Cu(1), and four equivalent Al(1) atoms to form distorted CuYb6Al4Cu2 cuboctahedra that share corners with eight equivalent Al(1)Yb6Al2Cu4 cuboctahedra, corners with ten equivalent Cu(1)Yb6Al4Cu2 cuboctahedra, edges with six equivalent Cu(1)Yb6Al4Cu2 cuboctahedra, faces with six equivalent Cu(1)Yb6Al4Cu2 cuboctahedra, and faces with twelve equivalent Al(1)Yb6Al2Cu4 cuboctahedra. Al(1) is bonded to six equivalent Yb(1), four equivalent Cu(1), and two equivalent Al(1) atoms to form AlYb6Al2Cu4 cuboctahedra that share corners with eight equivalent Cu(1)Yb6Al4Cu2 cuboctahedra, corners with ten equivalent Al(1)Yb6Al2Cu4 cuboctahedra, edges with six equivalent Al(1)Yb6Al2Cu4 cuboctahedra, faces with six equivalent Al(1)Yb6Al2Cu4 cuboctahedra, and faces with twelve equivalent Cu(1)Yb6Al4Cu2 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_YbAlCu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.375
_cell_length_b   5.375
_cell_length_c   5.375
_cell_angle_alpha   119.246
_cell_angle_beta   118.117
_cell_angle_gamma   92.303
_symmetry_Int_Tables_number   1
_cell_volume   111.899
_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
  Yb  Yb0  1  0.381  0.131  0.250  1.0
  Yb  Yb1  1  0.619  0.869  0.750  1.0
  Al  Al2  1  0.000  0.500  0.000  1.0
  Al  Al3  1  0.000  0.000  0.500  1.0
  Cu  Cu4  1  0.500  0.500  0.000  1.0
  Cu  Cu5  1  0.000  0.500  0.500  1.0
[/CIF]
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The crystal structure described by YbCuAl crystallizes in the orthorhombic Imma space group. Yb(1) is bonded in a 12-coordinate geometry to six equivalent Cu(1) and six equivalent Al(1) atoms. Cu(1) is bonded to six equivalent Yb(1), two equivalent Cu(1), and four equivalent Al(1) atoms to form distorted CuYb6Al4Cu2 cuboctahedra that share corners with eight equivalent Al(1)Yb6Al2Cu4 cuboctahedra, corners with ten equivalent Cu(1)Yb6Al4Cu2 cuboctahedra, edges with six equivalent Cu(1)Yb6Al4Cu2 cuboctahedra, faces with six equivalent Cu(1)Yb6Al4Cu2 cuboctahedra, and faces with twelve equivalent Al(1)Yb6Al2Cu4 cuboctahedra. Al(1) is bonded to six equivalent Yb(1), four equivalent Cu(1), and two equivalent Al(1) atoms to form AlYb6Al2Cu4 cuboctahedra that share corners with eight equivalent Cu(1)Yb6Al4Cu2 cuboctahedra, corners with ten equivalent Al(1)Yb6Al2Cu4 cuboctahedra, edges with six equivalent Al(1)Yb6Al2Cu4 cuboctahedra, faces with six equivalent Al(1)Yb6Al2Cu4 cuboctahedra, and faces with twelve equivalent Cu(1)Yb6Al4Cu2 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_YbAlCu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.375
_cell_length_b   5.375
_cell_length_c   5.375
_cell_angle_alpha   119.246
_cell_angle_beta   118.117
_cell_angle_gamma   92.303
_symmetry_Int_Tables_number   1
_cell_volume   111.899
_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
  Yb  Yb0  1  0.381  0.131  0.250  1.0
  Yb  Yb1  1  0.619  0.869  0.750  1.0
  Al  Al2  1  0.000  0.500  0.000  1.0
  Al  Al3  1  0.000  0.000  0.500  1.0
  Cu  Cu4  1  0.500  0.500  0.000  1.0
  Cu  Cu5  1  0.000  0.500  0.500  1.0
[/CIF]
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