The material described by Li2PtAl crystallizes in the cubic F-43m space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to four equivalent Li(2), six equivalent Pt(1), and four equivalent Al(1) atoms to form distorted LiLi4Al4Pt6 tetrahedra that share corners with six equivalent Li(1)Li4Al4Pt6 tetrahedra, corners with twelve equivalent Li(2)Li4Pt4 tetrahedra, faces with four equivalent Li(2)Li4Pt4 tetrahedra, and faces with twelve equivalent Li(1)Li4Al4Pt6 tetrahedra. In the second Li site, Li(2) is bonded to four equivalent Li(1) and four equivalent Pt(1) atoms to form distorted LiLi4Pt4 tetrahedra that share corners with twelve equivalent Li(1)Li4Al4Pt6 tetrahedra, edges with twelve equivalent Li(2)Li4Pt4 tetrahedra, and faces with four equivalent Li(1)Li4Al4Pt6 tetrahedra. Pt(1) is bonded in a distorted body-centered cubic geometry to four equivalent Li(2), six equivalent Li(1), and four equivalent Al(1) atoms. Al(1) is bonded in a distorted body-centered cubic geometry to four equivalent Li(1) and four equivalent Pt(1) atoms. is represented by the CIF file [CIF]
data_Li2AlPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.244
_cell_length_b   4.244
_cell_length_c   4.244
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   54.065
_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
  Li  Li0  1  0.250  0.250  0.250  1.0
  Li  Li1  1  0.500  0.500  0.500  1.0
  Al  Al2  1  0.000  0.000  0.000  1.0
  Pt  Pt3  1  0.750  0.750  0.750  1.0
[/CIF]
.
The material described by Li2PtAl crystallizes in the cubic F-43m space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to four equivalent Li(2), six equivalent Pt(1), and four equivalent Al(1) atoms to form distorted LiLi4Al4Pt6 tetrahedra that share corners with six equivalent Li(1)Li4Al4Pt6 tetrahedra, corners with twelve equivalent Li(2)Li4Pt4 tetrahedra, faces with four equivalent Li(2)Li4Pt4 tetrahedra, and faces with twelve equivalent Li(1)Li4Al4Pt6 tetrahedra. In the second Li site, Li(2) is bonded to four equivalent Li(1) and four equivalent Pt(1) atoms to form distorted LiLi4Pt4 tetrahedra that share corners with twelve equivalent Li(1)Li4Al4Pt6 tetrahedra, edges with twelve equivalent Li(2)Li4Pt4 tetrahedra, and faces with four equivalent Li(1)Li4Al4Pt6 tetrahedra. Pt(1) is bonded in a distorted body-centered cubic geometry to four equivalent Li(2), six equivalent Li(1), and four equivalent Al(1) atoms. Al(1) is bonded in a distorted body-centered cubic geometry to four equivalent Li(1) and four equivalent Pt(1) atoms. is represented by the CIF file [CIF]
data_Li2AlPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.244
_cell_length_b   4.244
_cell_length_c   4.244
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   54.065
_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
  Li  Li0  1  0.250  0.250  0.250  1.0
  Li  Li1  1  0.500  0.500  0.500  1.0
  Al  Al2  1  0.000  0.000  0.000  1.0
  Pt  Pt3  1  0.750  0.750  0.750  1.0
[/CIF]
.