The compound described by Al3Dy is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. Dy(1) is bonded to four equivalent Al(1) and eight equivalent Al(2) atoms to form DyAl12 cuboctahedra that share corners with four equivalent Dy(1)Al12 cuboctahedra, edges with eight equivalent Dy(1)Al12 cuboctahedra, edges with sixteen equivalent Al(2)Dy4Al8 cuboctahedra, faces with four equivalent Dy(1)Al12 cuboctahedra, and faces with eight equivalent Al(2)Dy4Al8 cuboctahedra. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a square co-planar geometry to four equivalent Dy(1) and eight equivalent Al(2) atoms. In the second Al site, Al(2) is bonded to four equivalent Dy(1), four equivalent Al(1), and four equivalent Al(2) atoms to form distorted AlDy4Al8 cuboctahedra that share corners with twelve equivalent Al(2)Dy4Al8 cuboctahedra, edges with eight equivalent Dy(1)Al12 cuboctahedra, edges with eight equivalent Al(2)Dy4Al8 cuboctahedra, faces with four equivalent Dy(1)Al12 cuboctahedra, and faces with ten equivalent Al(2)Dy4Al8 cuboctahedra. is represented by the CIF card [CIF]
data_DyAl3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.465
_cell_length_b   5.465
_cell_length_c   5.465
_cell_angle_alpha   134.958
_cell_angle_beta   134.958
_cell_angle_gamma   65.596
_symmetry_Int_Tables_number   1
_cell_volume   80.522
_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
  Dy  Dy0  1  0.000  0.000  0.000  1.0
  Al  Al1  1  0.500  0.500  0.000  1.0
  Al  Al2  1  0.750  0.250  0.500  1.0
  Al  Al3  1  0.250  0.750  0.500  1.0
[/CIF]
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The compound described by Al3Dy is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. Dy(1) is bonded to four equivalent Al(1) and eight equivalent Al(2) atoms to form DyAl12 cuboctahedra that share corners with four equivalent Dy(1)Al12 cuboctahedra, edges with eight equivalent Dy(1)Al12 cuboctahedra, edges with sixteen equivalent Al(2)Dy4Al8 cuboctahedra, faces with four equivalent Dy(1)Al12 cuboctahedra, and faces with eight equivalent Al(2)Dy4Al8 cuboctahedra. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a square co-planar geometry to four equivalent Dy(1) and eight equivalent Al(2) atoms. In the second Al site, Al(2) is bonded to four equivalent Dy(1), four equivalent Al(1), and four equivalent Al(2) atoms to form distorted AlDy4Al8 cuboctahedra that share corners with twelve equivalent Al(2)Dy4Al8 cuboctahedra, edges with eight equivalent Dy(1)Al12 cuboctahedra, edges with eight equivalent Al(2)Dy4Al8 cuboctahedra, faces with four equivalent Dy(1)Al12 cuboctahedra, and faces with ten equivalent Al(2)Dy4Al8 cuboctahedra. is represented by the CIF card [CIF]
data_DyAl3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.465
_cell_length_b   5.465
_cell_length_c   5.465
_cell_angle_alpha   134.958
_cell_angle_beta   134.958
_cell_angle_gamma   65.596
_symmetry_Int_Tables_number   1
_cell_volume   80.522
_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
  Dy  Dy0  1  0.000  0.000  0.000  1.0
  Al  Al1  1  0.500  0.500  0.000  1.0
  Al  Al2  1  0.750  0.250  0.500  1.0
  Al  Al3  1  0.250  0.750  0.500  1.0
[/CIF]
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