SrO3 crystallizes in the orthorhombic Pmc2_1 space group. Sr(1) is bonded in a 9-coordinate geometry to two equivalent O(2), three equivalent O(1), and four equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to three equivalent Sr(1) and two equivalent O(2) atoms. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent Sr(1), one O(3), and two equivalent O(1) atoms. In the third O site, O(3) is bonded to four equivalent Sr(1) and one O(2) atom to form a mixture of distorted corner and edge-sharing OSr4O trigonal bipyramids.
SrO3 crystallizes in the orthorhombic Pmc2_1 space group. Sr(1) is bonded in a 9-coordinate geometry to two equivalent O(2), three equivalent O(1), and four equivalent O(3) atoms. Both Sr(1)-O(2) bond lengths are 2.95 Å. There are a spread of Sr(1)-O(1) bond distances ranging from 2.42-2.51 Å. All Sr(1)-O(3) bond lengths are 2.72 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to three equivalent Sr(1) and two equivalent O(2) atoms. Both O(1)-O(2) bond lengths are 2.00 Å. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent Sr(1), one O(3), and two equivalent O(1) atoms. The O(2)-O(3) bond length is 1.39 Å. In the third O site, O(3) is bonded to four equivalent Sr(1) and one O(2) atom to form a mixture of distorted corner and edge-sharing OSr4O trigonal bipyramids.