VPb2Se2O8Cl crystallizes in the monoclinic P2_1 space group. V(1) is bonded to one O(1), one O(2), one O(6), one O(8), and two equivalent O(7) atoms to form distorted corner-sharing VO6 octahedra. The corner-sharing octahedral tilt angles are 28°. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(6), and one Cl(1) atom. In the second Pb site, Pb(2) is bonded in a 7-coordinate geometry to one O(3), two equivalent O(4), two equivalent O(5), and two equivalent Cl(1) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a distorted trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. In the second Se site, Se(2) is bonded in a trigonal non-coplanar geometry to one O(4), one O(5), and one O(6) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one V(1) and one Se(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one V(1), one Pb(1), and one Se(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Pb(1), one Pb(2), and one Se(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Pb(1), two equivalent Pb(2), and one Se(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Pb(1), two equivalent Pb(2), and one Se(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one V(1), one Pb(1), and one Se(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to two equivalent V(1) atoms. In the eighth O site, O(8) is bonded in a single-bond geometry to one V(1) atom. Cl(1) is bonded in a distorted T-shaped geometry to one Pb(1) and two equivalent Pb(2) atoms.
VPb2Se2O8Cl crystallizes in the monoclinic P2_1 space group. V(1) is bonded to one O(1), one O(2), one O(6), one O(8), and two equivalent O(7) atoms to form distorted corner-sharing VO6 octahedra. The corner-sharing octahedral tilt angles are 28°. The V(1)-O(1) bond length is 2.01 Å. The V(1)-O(2) bond length is 2.16 Å. The V(1)-O(6) bond length is 2.16 Å. The V(1)-O(8) bond length is 1.66 Å. There is one shorter (1.77 Å) and one longer (1.96 Å) V(1)-O(7) bond length. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(6), and one Cl(1) atom. The Pb(1)-O(2) bond length is 2.85 Å. The Pb(1)-O(3) bond length is 2.57 Å. The Pb(1)-O(4) bond length is 2.69 Å. The Pb(1)-O(5) bond length is 2.61 Å. The Pb(1)-O(6) bond length is 2.60 Å. The Pb(1)-Cl(1) bond length is 3.07 Å. In the second Pb site, Pb(2) is bonded in a 7-coordinate geometry to one O(3), two equivalent O(4), two equivalent O(5), and two equivalent Cl(1) atoms. The Pb(2)-O(3) bond length is 2.60 Å. There is one shorter (2.53 Å) and one longer (2.60 Å) Pb(2)-O(4) bond length. There is one shorter (2.75 Å) and one longer (2.84 Å) Pb(2)-O(5) bond length. There is one shorter (2.94 Å) and one longer (3.09 Å) Pb(2)-Cl(1) bond length. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a distorted trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. The Se(1)-O(1) bond length is 1.79 Å. The Se(1)-O(2) bond length is 1.74 Å. The Se(1)-O(3) bond length is 1.71 Å. In the second Se site, Se(2) is bonded in a trigonal non-coplanar geometry to one O(4), one O(5), and one O(6) atom. The Se(2)-O(4) bond length is 1.76 Å. The Se(2)-O(5) bond length is 1.73 Å. The Se(2)-O(6) bond length is 1.73 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one V(1) and one Se(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one V(1), one Pb(1), and one Se(1) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Pb(1), one Pb(2), and one Se(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Pb(1), two equivalent Pb(2), and one Se(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Pb(1), two equivalent Pb(2), and one Se(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one V(1), one Pb(1), and one Se(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to two equivalent V(1) atoms. In the eighth O site, O(8) is bonded in a single-bond geometry to one V(1) atom. Cl(1) is bonded in a distorted T-shaped geometry to one Pb(1) and two equivalent Pb(2) atoms.