CdGe2O5 is Esseneite-derived structured and crystallizes in the triclinic P-1 space group. Cd(1) is bonded in a 8-coordinate geometry to one O(4), one O(5), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form corner-sharing GeO4 tetrahedra. The corner-sharing octahedral tilt angles range from 43-59°. In the second Ge site, Ge(2) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form GeO6 octahedra that share corners with two equivalent Ge(3)O6 octahedra and corners with four equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 39°. In the third Ge site, Ge(3) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form GeO6 octahedra that share corners with two equivalent Ge(2)O6 octahedra and corners with four equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 39°. There are five inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Cd(1), one Ge(1), and one Ge(2) atom to form a mixture of distorted corner and edge-sharing OCd2Ge2 tetrahedra. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Cd(1), one Ge(1), and one Ge(3) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Cd(1), one Ge(1), and one Ge(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Cd(1), one Ge(2), and one Ge(3) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Cd(1), one Ge(1), and one Ge(2) atom.
CdGe2O5 is Esseneite-derived structured and crystallizes in the triclinic P-1 space group. Cd(1) is bonded in a 8-coordinate geometry to one O(4), one O(5), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. The Cd(1)-O(4) bond length is 2.23 Å. The Cd(1)-O(5) bond length is 2.26 Å. There is one shorter (2.44 Å) and one longer (2.50 Å) Cd(1)-O(1) bond length. There is one shorter (2.66 Å) and one longer (2.80 Å) Cd(1)-O(2) bond length. There is one shorter (2.30 Å) and one longer (2.55 Å) Cd(1)-O(3) bond length. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form corner-sharing GeO4 tetrahedra. The corner-sharing octahedral tilt angles range from 43-59°. The Ge(1)-O(1) bond length is 1.75 Å. The Ge(1)-O(2) bond length is 1.76 Å. The Ge(1)-O(3) bond length is 1.76 Å. The Ge(1)-O(5) bond length is 1.76 Å. In the second Ge site, Ge(2) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form GeO6 octahedra that share corners with two equivalent Ge(3)O6 octahedra and corners with four equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 39°. Both Ge(2)-O(1) bond lengths are 1.94 Å. Both Ge(2)-O(4) bond lengths are 1.84 Å. Both Ge(2)-O(5) bond lengths are 1.92 Å. In the third Ge site, Ge(3) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form GeO6 octahedra that share corners with two equivalent Ge(2)O6 octahedra and corners with four equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 39°. Both Ge(3)-O(2) bond lengths are 1.93 Å. Both Ge(3)-O(3) bond lengths are 1.93 Å. Both Ge(3)-O(4) bond lengths are 1.84 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Cd(1), one Ge(1), and one Ge(2) atom to form a mixture of distorted corner and edge-sharing OCd2Ge2 tetrahedra. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Cd(1), one Ge(1), and one Ge(3) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Cd(1), one Ge(1), and one Ge(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Cd(1), one Ge(2), and one Ge(3) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Cd(1), one Ge(1), and one Ge(2) atom.