SrOI2 crystallizes in the orthorhombic Pnma space group. Sr(1) is bonded in a 2-coordinate geometry to two equivalent O(1), three equivalent I(2), and four equivalent I(1) atoms. O(1) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one I(1), and one I(2) atom. There are two inequivalent I sites. In the first I site, I(2) is bonded in a 4-coordinate geometry to three equivalent Sr(1) and one O(1) atom. In the second I site, I(1) is bonded in a 5-coordinate geometry to four equivalent Sr(1) and one O(1) atom.
SrOI2 crystallizes in the orthorhombic Pnma space group. Sr(1) is bonded in a 2-coordinate geometry to two equivalent O(1), three equivalent I(2), and four equivalent I(1) atoms. Both Sr(1)-O(1) bond lengths are 2.48 Å. There is one shorter (3.44 Å) and two longer (3.51 Å) Sr(1)-I(2) bond lengths. There are a spread of Sr(1)-I(1) bond distances ranging from 3.42-4.05 Å. O(1) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one I(1), and one I(2) atom. The O(1)-I(1) bond length is 2.72 Å. The O(1)-I(2) bond length is 2.68 Å. There are two inequivalent I sites. In the first I site, I(2) is bonded in a 4-coordinate geometry to three equivalent Sr(1) and one O(1) atom. In the second I site, I(1) is bonded in a 5-coordinate geometry to four equivalent Sr(1) and one O(1) atom.