The crystal structure described by DyNi4Al crystallizes in the orthorhombic Cmmm space group. Dy(1) is bonded in a 18-coordinate geometry to six equivalent Ni(1), eight equivalent Ni(2), and four equivalent Al(1) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to three equivalent Dy(1), four equivalent Ni(2), and two equivalent Al(1) atoms. In the second Ni site, Ni(2) is bonded to four equivalent Dy(1), two equivalent Ni(2), four equivalent Ni(1), and two equivalent Al(1) atoms to form a mixture of distorted face, corner, and edge-sharing NiDy4Al2Ni6 cuboctahedra. Al(1) is bonded in a 8-coordinate geometry to four equivalent Dy(1), four equivalent Ni(1), and four equivalent Ni(2) atoms. is represented by the CIF file [CIF]
data_DyAlNi4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.851
_cell_length_b   4.851
_cell_length_c   3.984
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   118.560
_symmetry_Int_Tables_number   1
_cell_volume   82.345
_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  0.500  0.500  0.000  1.0
  Al  Al1  1  0.000  0.000  0.500  1.0
  Ni  Ni2  1  0.168  0.832  0.000  1.0
  Ni  Ni3  1  0.832  0.168  0.000  1.0
  Ni  Ni4  1  0.000  0.500  0.500  1.0
  Ni  Ni5  1  0.500  0.000  0.500  1.0
[/CIF]
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The crystal structure described by DyNi4Al crystallizes in the orthorhombic Cmmm space group. Dy(1) is bonded in a 18-coordinate geometry to six equivalent Ni(1), eight equivalent Ni(2), and four equivalent Al(1) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to three equivalent Dy(1), four equivalent Ni(2), and two equivalent Al(1) atoms. In the second Ni site, Ni(2) is bonded to four equivalent Dy(1), two equivalent Ni(2), four equivalent Ni(1), and two equivalent Al(1) atoms to form a mixture of distorted face, corner, and edge-sharing NiDy4Al2Ni6 cuboctahedra. Al(1) is bonded in a 8-coordinate geometry to four equivalent Dy(1), four equivalent Ni(1), and four equivalent Ni(2) atoms. is represented by the CIF file [CIF]
data_DyAlNi4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.851
_cell_length_b   4.851
_cell_length_c   3.984
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   118.560
_symmetry_Int_Tables_number   1
_cell_volume   82.345
_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  0.500  0.500  0.000  1.0
  Al  Al1  1  0.000  0.000  0.500  1.0
  Ni  Ni2  1  0.168  0.832  0.000  1.0
  Ni  Ni3  1  0.832  0.168  0.000  1.0
  Ni  Ni4  1  0.000  0.500  0.500  1.0
  Ni  Ni5  1  0.500  0.000  0.500  1.0
[/CIF]
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