SrHf4SnO12 crystallizes in the orthorhombic Cmmm space group. Sr(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(1) and four equivalent O(4) atoms. Hf(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form corner-sharing HfO6 octahedra. The corner-sharing octahedral tilt angles range from 0-40°. Sn(1) is bonded in a square co-planar geometry to four equivalent O(2) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Sr(1) and two equivalent Hf(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Hf(1) and one Sn(1) atom. In the third O site, O(3) is bonded in a linear geometry to two equivalent Hf(1) atoms. In the fourth O site, O(4) is bonded in a distorted square co-planar geometry to two equivalent Sr(1) and two equivalent Hf(1) atoms.
SrHf4SnO12 crystallizes in the orthorhombic Cmmm space group. Sr(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(1) and four equivalent O(4) atoms. All Sr(1)-O(1) bond lengths are 2.46 Å. All Sr(1)-O(4) bond lengths are 2.82 Å. Hf(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form corner-sharing HfO6 octahedra. The corner-sharing octahedral tilt angles range from 0-40°. The Hf(1)-O(3) bond length is 2.05 Å. The Hf(1)-O(4) bond length is 2.13 Å. Both Hf(1)-O(1) bond lengths are 2.03 Å. Both Hf(1)-O(2) bond lengths are 2.16 Å. Sn(1) is bonded in a square co-planar geometry to four equivalent O(2) atoms. All Sn(1)-O(2) bond lengths are 2.12 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Sr(1) and two equivalent Hf(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Hf(1) and one Sn(1) atom. In the third O site, O(3) is bonded in a linear geometry to two equivalent Hf(1) atoms. In the fourth O site, O(4) is bonded in a distorted square co-planar geometry to two equivalent Sr(1) and two equivalent Hf(1) atoms.