CdNb2O6 crystallizes in the orthorhombic Pbcn space group. Nb(1) is bonded in a 6-coordinate geometry to one O(1), two equivalent O(2), and three equivalent O(3) atoms. Cd(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form distorted edge-sharing CdO6 octahedra. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Nb(1) and two equivalent Cd(1) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to two equivalent Nb(1) and one Cd(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to three equivalent Nb(1) atoms.
CdNb2O6 crystallizes in the orthorhombic Pbcn space group. Nb(1) is bonded in a 6-coordinate geometry to one O(1), two equivalent O(2), and three equivalent O(3) atoms. The Nb(1)-O(1) bond length is 1.82 Å. There is one shorter (1.95 Å) and one longer (2.10 Å) Nb(1)-O(2) bond length. There are a spread of Nb(1)-O(3) bond distances ranging from 1.97-2.38 Å. Cd(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form distorted edge-sharing CdO6 octahedra. Both Cd(1)-O(2) bond lengths are 2.26 Å. There are two shorter (2.28 Å) and two longer (2.35 Å) Cd(1)-O(1) bond lengths. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Nb(1) and two equivalent Cd(1) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to two equivalent Nb(1) and one Cd(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to three equivalent Nb(1) atoms.