Pb2PtO4 crystallizes in the orthorhombic Pbam space group. Pt(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form edge-sharing PtO6 octahedra. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted T-shaped geometry to one O(2) and two equivalent O(3) atoms. In the second Pb site, Pb(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Pt(1) and two equivalent Pb(2) atoms. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to two equivalent Pt(1) and one Pb(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Pt(1), one Pb(1), and one Pb(2) atom.
Pb2PtO4 crystallizes in the orthorhombic Pbam space group. Pt(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form edge-sharing PtO6 octahedra. Both Pt(1)-O(1) bond lengths are 2.04 Å. Both Pt(1)-O(2) bond lengths are 2.04 Å. Both Pt(1)-O(3) bond lengths are 2.02 Å. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted T-shaped geometry to one O(2) and two equivalent O(3) atoms. The Pb(1)-O(2) bond length is 2.33 Å. Both Pb(1)-O(3) bond lengths are 2.21 Å. In the second Pb site, Pb(2) is bonded in a distorted rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(3) atoms. There is one shorter (2.34 Å) and one longer (2.67 Å) Pb(2)-O(1) bond length. Both Pb(2)-O(3) bond lengths are 2.21 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Pt(1) and two equivalent Pb(2) atoms. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to two equivalent Pt(1) and one Pb(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Pt(1), one Pb(1), and one Pb(2) atom.