PdPb2Se2(O3Cl)2 crystallizes in the monoclinic P2_1/c space group. Pd(1) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent Cl(1) atoms. Pb(1) is bonded in a 5-coordinate geometry to one O(2), two equivalent O(1), and two equivalent O(3) atoms. Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Pb(1) and one Se(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Pd(1), one Pb(1), and one Se(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Pb(1) and one Se(1) atom. Cl(1) is bonded in a single-bond geometry to one Pd(1) atom.
PdPb2Se2(O3Cl)2 crystallizes in the monoclinic P2_1/c space group. Pd(1) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent Cl(1) atoms. Both Pd(1)-O(2) bond lengths are 2.00 Å. Both Pd(1)-Cl(1) bond lengths are 2.30 Å. Pb(1) is bonded in a 5-coordinate geometry to one O(2), two equivalent O(1), and two equivalent O(3) atoms. The Pb(1)-O(2) bond length is 2.58 Å. There is one shorter (2.41 Å) and one longer (2.64 Å) Pb(1)-O(1) bond length. There is one shorter (2.51 Å) and one longer (2.67 Å) Pb(1)-O(3) bond length. Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. The Se(1)-O(1) bond length is 1.71 Å. The Se(1)-O(2) bond length is 1.74 Å. The Se(1)-O(3) bond length is 1.70 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Pb(1) and one Se(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Pd(1), one Pb(1), and one Se(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Pb(1) and one Se(1) atom. Cl(1) is bonded in a single-bond geometry to one Pd(1) atom.