data_DyAl2Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.45
_cell_length_b   5.45
_cell_length_c   6.82
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   136.53
_symmetry_Int_Tables_number   1
_chemical_formula_structural   DyAl2Ni
_chemical_formula_sum   'Dy2 Al4 Ni2'
_cell_volume   139.28
_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
  Dy  Dy0  1  0.02  0.57  0.71  1.0
  Dy  Dy1  1  0.02  0.43  0.12  1.0
  Al  Al2  1  0.02  0.57  0.45  1.0
  Al  Al3  1  0.02  0.43  0.04  1.0
  Al  Al4  1  0.02  0.43  0.37  1.0
  Al  Al5  1  0.02  0.57  0.78  1.0
  Ni  Ni6  1  0.02  0.11  0.12  1.0
  Ni  Ni7  1  0.02  0.89  0.71  1.0

data_DyAl2Ni
_symmetry_space_group_name_H-M   P-1
_cell_length_a   4.03
_cell_length_b   5.45
_cell_length_c   6.82
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   111.73
_symmetry_Int_Tables_number   2
_chemical_formula_structural   DyAl2Ni
_chemical_formula_sum   'Dy2 Al4 Ni2'
_cell_volume   139.28
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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  2  0.43  0.43  0.29  1.0
  Al  Al1  2  0.43  0.43  0.04  1.0
  Al  Al2  2  0.43  0.43  0.37  1.0
  Ni  Ni3  2  0.11  0.11  0.29  1.0

Dy Dy Al Al Al Al Ni Ni
DyNiAl2 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of one DyNiAl2 cluster. Dy(1) is bonded in a distorted single-bond geometry to one Ni(1), one Al(1), and one Al(2) atom. The Dy(1)-Ni(1) bond length is 1.74 Å. The Dy(1)-Al(1) bond length is 1.71 Å. The Dy(1)-Al(2) bond length is 0.49 Å. Ni(1) is bonded in a 1-coordinate geometry to one Dy(1) atom. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted bent 120 degrees geometry to one Dy(1) and one Al(1) atom. The Al(1)-Al(1) bond length is 0.99 Å. In the second Al site, Al(2) is bonded in a single-bond geometry to one Dy(1) atom.