Pb3O4 crystallizes in the orthorhombic Pbam space group. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to two equivalent O(1) and two equivalent O(2) atoms. In the second Pb site, Pb(2) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form edge-sharing PbO6 octahedra. There are two inequivalent O sites. In the first O site, O(2) is bonded in a trigonal non-coplanar geometry to one Pb(2) and two equivalent Pb(1) atoms. In the second O site, O(1) is bonded to two equivalent Pb(1) and two equivalent Pb(2) atoms to form a mixture of edge and corner-sharing OPb4 trigonal pyramids.
Pb3O4 crystallizes in the orthorhombic Pbam space group. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to two equivalent O(1) and two equivalent O(2) atoms. There is one shorter (2.45 Å) and one longer (2.55 Å) Pb(1)-O(1) bond length. Both Pb(1)-O(2) bond lengths are 2.33 Å. In the second Pb site, Pb(2) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form edge-sharing PbO6 octahedra. Both Pb(2)-O(2) bond lengths are 2.17 Å. All Pb(2)-O(1) bond lengths are 2.24 Å. There are two inequivalent O sites. In the first O site, O(2) is bonded in a trigonal non-coplanar geometry to one Pb(2) and two equivalent Pb(1) atoms. In the second O site, O(1) is bonded to two equivalent Pb(1) and two equivalent Pb(2) atoms to form a mixture of edge and corner-sharing OPb4 trigonal pyramids.