The structure described by Dy3Al2 crystallizes in the tetragonal P4_2/mnm space group. There are three inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a distorted square co-planar geometry to four equivalent Al(1) atoms. In the second Dy site, Dy(2) is bonded in a 6-coordinate geometry to six equivalent Al(1) atoms. In the third Dy site, Dy(3) is bonded in a 6-coordinate geometry to six equivalent Al(1) atoms. Al(1) is bonded in a 10-coordinate geometry to two equivalent Dy(1), three equivalent Dy(2), three equivalent Dy(3), and two equivalent Al(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Dy3Al2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.622
_cell_length_b   8.192
_cell_length_c   8.192
_cell_angle_alpha   90.003
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   511.545
_cell_formula_units_Z   4
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  0.506  0.000  0.500  1.0
  Dy  Dy1  1  0.756  0.349  0.651  1.0
  Dy  Dy2  1  0.506  0.500  0.000  1.0
  Dy  Dy3  1  0.256  0.702  0.298  1.0
  Dy  Dy4  1  0.756  0.202  0.202  1.0
  Dy  Dy5  1  0.006  0.000  0.500  1.0
  Dy  Dy6  1  0.256  0.151  0.151  1.0
  Dy  Dy7  1  0.256  0.298  0.702  1.0
  Dy  Dy8  1  0.006  0.500  0.000  1.0
  Dy  Dy9  1  0.256  0.849  0.849  1.0
  Dy  Dy10  1  0.756  0.798  0.798  1.0
  Dy  Dy11  1  0.756  0.651  0.349  1.0
  Al  Al12  1  0.061  0.618  0.618  1.0
  Al  Al13  1  0.451  0.618  0.618  1.0
  Al  Al14  1  0.561  0.882  0.118  1.0
  Al  Al15  1  0.951  0.882  0.118  1.0
  Al  Al16  1  0.061  0.382  0.382  1.0
  Al  Al17  1  0.951  0.118  0.882  1.0
  Al  Al18  1  0.561  0.118  0.882  1.0
  Al  Al19  1  0.451  0.382  0.382  1.0
[/CIF]
.
The structure described by Dy3Al2 crystallizes in the tetragonal P4_2/mnm space group. There are three inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a distorted square co-planar geometry to four equivalent Al(1) atoms. In the second Dy site, Dy(2) is bonded in a 6-coordinate geometry to six equivalent Al(1) atoms. In the third Dy site, Dy(3) is bonded in a 6-coordinate geometry to six equivalent Al(1) atoms. Al(1) is bonded in a 10-coordinate geometry to two equivalent Dy(1), three equivalent Dy(2), three equivalent Dy(3), and two equivalent Al(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Dy3Al2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.622
_cell_length_b   8.192
_cell_length_c   8.192
_cell_angle_alpha   90.003
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   511.545
_cell_formula_units_Z   4
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  0.506  0.000  0.500  1.0
  Dy  Dy1  1  0.756  0.349  0.651  1.0
  Dy  Dy2  1  0.506  0.500  0.000  1.0
  Dy  Dy3  1  0.256  0.702  0.298  1.0
  Dy  Dy4  1  0.756  0.202  0.202  1.0
  Dy  Dy5  1  0.006  0.000  0.500  1.0
  Dy  Dy6  1  0.256  0.151  0.151  1.0
  Dy  Dy7  1  0.256  0.298  0.702  1.0
  Dy  Dy8  1  0.006  0.500  0.000  1.0
  Dy  Dy9  1  0.256  0.849  0.849  1.0
  Dy  Dy10  1  0.756  0.798  0.798  1.0
  Dy  Dy11  1  0.756  0.651  0.349  1.0
  Al  Al12  1  0.061  0.618  0.618  1.0
  Al  Al13  1  0.451  0.618  0.618  1.0
  Al  Al14  1  0.561  0.882  0.118  1.0
  Al  Al15  1  0.951  0.882  0.118  1.0
  Al  Al16  1  0.061  0.382  0.382  1.0
  Al  Al17  1  0.951  0.118  0.882  1.0
  Al  Al18  1  0.561  0.118  0.882  1.0
  Al  Al19  1  0.451  0.382  0.382  1.0
[/CIF]
.