Pb2CrO5 crystallizes in the monoclinic C2/m space group. Cr(1) is bonded in a tetrahedral geometry to one O(3), one O(4), and two equivalent O(2) atoms. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted pentagonal planar geometry to one O(4), two equivalent O(1), and two equivalent O(2) atoms. In the second Pb site, Pb(2) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Pb(1) and two equivalent Pb(2) atoms to form edge-sharing OPb4 tetrahedra. In the second O site, O(2) is bonded in a single-bond geometry to one Cr(1), one Pb(1), and one Pb(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Cr(1) and one Pb(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Cr(1) and one Pb(1) atom.
Pb2CrO5 crystallizes in the monoclinic C2/m space group. Cr(1) is bonded in a tetrahedral geometry to one O(3), one O(4), and two equivalent O(2) atoms. The Cr(1)-O(3) bond length is 1.66 Å. The Cr(1)-O(4) bond length is 1.65 Å. Both Cr(1)-O(2) bond lengths are 1.65 Å. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted pentagonal planar geometry to one O(4), two equivalent O(1), and two equivalent O(2) atoms. The Pb(1)-O(4) bond length is 2.50 Å. Both Pb(1)-O(1) bond lengths are 2.30 Å. Both Pb(1)-O(2) bond lengths are 2.70 Å. In the second Pb site, Pb(2) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. The Pb(2)-O(3) bond length is 2.49 Å. Both Pb(2)-O(1) bond lengths are 2.32 Å. Both Pb(2)-O(2) bond lengths are 2.79 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Pb(1) and two equivalent Pb(2) atoms to form edge-sharing OPb4 tetrahedra. In the second O site, O(2) is bonded in a single-bond geometry to one Cr(1), one Pb(1), and one Pb(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Cr(1) and one Pb(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Cr(1) and one Pb(1) atom.