Pt3Al crystallizes in the tetragonal P4/mbm space group. There are three inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted rectangular see-saw-like geometry to four equivalent Al(1) atoms. In the second Pt site, Pt(2) is bonded in a distorted rectangular see-saw-like geometry to four equivalent Al(1) atoms. In the third Pt site, Pt(3) is bonded in a distorted water-like geometry to two equivalent Al(1) atoms. Al(1) is bonded in a 10-coordinate geometry to two equivalent Pt(3), four equivalent Pt(1), and four equivalent Pt(2) atoms.
Pt3Al crystallizes in the tetragonal P4/mbm space group. There are three inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted rectangular see-saw-like geometry to four equivalent Al(1) atoms. There are two shorter (2.61 Å) and two longer (2.76 Å) Pt(1)-Al(1) bond lengths. In the second Pt site, Pt(2) is bonded in a distorted rectangular see-saw-like geometry to four equivalent Al(1) atoms. All Pt(2)-Al(1) bond lengths are 2.74 Å. In the third Pt site, Pt(3) is bonded in a distorted water-like geometry to two equivalent Al(1) atoms. Both Pt(3)-Al(1) bond lengths are 2.54 Å. Al(1) is bonded in a 10-coordinate geometry to two equivalent Pt(3), four equivalent Pt(1), and four equivalent Pt(2) atoms.