PbGeO3 crystallizes in the trigonal R-3 space group. Pb(1) is bonded to two equivalent O(3) and three equivalent O(2) atoms to form distorted PbO5 square pyramids that share corners with two equivalent Pb(1)O5 square pyramids, corners with five equivalent Ge(1)O4 tetrahedra, and edges with three equivalent Pb(1)O5 square pyramids. Ge(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form GeO4 tetrahedra that share corners with five equivalent Pb(1)O5 square pyramids and corners with two equivalent Ge(1)O4 tetrahedra. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent Ge(1) atoms. In the second O site, O(2) is bonded in a distorted single-bond geometry to three equivalent Pb(1) and one Ge(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Pb(1) and one Ge(1) atom.
PbGeO3 crystallizes in the trigonal R-3 space group. Pb(1) is bonded to two equivalent O(3) and three equivalent O(2) atoms to form distorted PbO5 square pyramids that share corners with two equivalent Pb(1)O5 square pyramids, corners with five equivalent Ge(1)O4 tetrahedra, and edges with three equivalent Pb(1)O5 square pyramids. There is one shorter (2.28 Å) and one longer (2.46 Å) Pb(1)-O(3) bond length. There are a spread of Pb(1)-O(2) bond distances ranging from 2.45-2.57 Å. Ge(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form GeO4 tetrahedra that share corners with five equivalent Pb(1)O5 square pyramids and corners with two equivalent Ge(1)O4 tetrahedra. The Ge(1)-O(2) bond length is 1.75 Å. The Ge(1)-O(3) bond length is 1.74 Å. There is one shorter (1.77 Å) and one longer (1.78 Å) Ge(1)-O(1) bond length. There are three inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent Ge(1) atoms. In the second O site, O(2) is bonded in a distorted single-bond geometry to three equivalent Pb(1) and one Ge(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Pb(1) and one Ge(1) atom.