The material structure described by PtNi2Al3 is Heusler-like structured and crystallizes in the tetragonal P4/mmm space group. Pt(1) is bonded in a distorted body-centered cubic geometry to eight equivalent Al(1) atoms. Ni(1) is bonded in a distorted body-centered cubic geometry to four equivalent Al(1) and four equivalent Al(2) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a body-centered cubic geometry to four equivalent Pt(1) and four equivalent Ni(1) atoms. In the second Al site, Al(2) is bonded in a body-centered cubic geometry to eight equivalent Ni(1) atoms. is represented by the CIF file [CIF]
data_Al3Ni2Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.966
_cell_length_b   2.966
_cell_length_c   8.868
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   78.033
_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
  Al  Al0  1  0.500  0.500  0.184  1.0
  Al  Al1  1  0.500  0.500  0.500  1.0
  Al  Al2  1  0.500  0.500  0.816  1.0
  Ni  Ni3  1  0.000  0.000  0.334  1.0
  Ni  Ni4  1  0.000  0.000  0.666  1.0
  Pt  Pt5  1  0.000  0.000  0.000  1.0
[/CIF]
.
The material structure described by PtNi2Al3 is Heusler-like structured and crystallizes in the tetragonal P4/mmm space group. Pt(1) is bonded in a distorted body-centered cubic geometry to eight equivalent Al(1) atoms. Ni(1) is bonded in a distorted body-centered cubic geometry to four equivalent Al(1) and four equivalent Al(2) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a body-centered cubic geometry to four equivalent Pt(1) and four equivalent Ni(1) atoms. In the second Al site, Al(2) is bonded in a body-centered cubic geometry to eight equivalent Ni(1) atoms. is represented by the CIF file [CIF]
data_Al3Ni2Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.966
_cell_length_b   2.966
_cell_length_c   8.868
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   78.033
_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
  Al  Al0  1  0.500  0.500  0.184  1.0
  Al  Al1  1  0.500  0.500  0.500  1.0
  Al  Al2  1  0.500  0.500  0.816  1.0
  Ni  Ni3  1  0.000  0.000  0.334  1.0
  Ni  Ni4  1  0.000  0.000  0.666  1.0
  Pt  Pt5  1  0.000  0.000  0.000  1.0
[/CIF]
.