Rb2PbO3 crystallizes in the orthorhombic Pnma space group. Rb(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. Pb(1) is bonded to one O(2) and four equivalent O(1) atoms to form distorted edge-sharing PbO5 trigonal bipyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Rb(1) and two equivalent Pb(1) atoms to form a mixture of distorted corner, face, and edge-sharing ORb4Pb2 octahedra. The corner-sharing octahedral tilt angles range from 37-53°. In the second O site, O(2) is bonded in a 5-coordinate geometry to four equivalent Rb(1) and one Pb(1) atom.
Rb2PbO3 crystallizes in the orthorhombic Pnma space group. Rb(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. There is one shorter (2.81 Å) and one longer (2.98 Å) Rb(1)-O(2) bond length. There are a spread of Rb(1)-O(1) bond distances ranging from 2.91-3.14 Å. Pb(1) is bonded to one O(2) and four equivalent O(1) atoms to form distorted edge-sharing PbO5 trigonal bipyramids. The Pb(1)-O(2) bond length is 2.04 Å. There are two shorter (2.18 Å) and two longer (2.21 Å) Pb(1)-O(1) bond lengths. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Rb(1) and two equivalent Pb(1) atoms to form a mixture of distorted corner, face, and edge-sharing ORb4Pb2 octahedra. The corner-sharing octahedral tilt angles range from 37-53°. In the second O site, O(2) is bonded in a 5-coordinate geometry to four equivalent Rb(1) and one Pb(1) atom.