SrSeO3 is Potassium chlorate structured and crystallizes in the monoclinic P2_1/m space group. Sr(1) is bonded in a 9-coordinate geometry to three equivalent O(2) and six equivalent O(1) atoms. Se(1) is bonded in a distorted trigonal non-coplanar geometry to one O(2) and two equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a 4-coordinate geometry to three equivalent Sr(1) and one Se(1) atom. In the second O site, O(1) is bonded to three equivalent Sr(1) and one Se(1) atom to form a mixture of distorted edge and corner-sharing OSr3Se tetrahedra.
SrSeO3 is Potassium chlorate structured and crystallizes in the monoclinic P2_1/m space group. Sr(1) is bonded in a 9-coordinate geometry to three equivalent O(2) and six equivalent O(1) atoms. There is one shorter (2.65 Å) and two longer (3.02 Å) Sr(1)-O(2) bond lengths. There are a spread of Sr(1)-O(1) bond distances ranging from 2.62-2.68 Å. Se(1) is bonded in a distorted trigonal non-coplanar geometry to one O(2) and two equivalent O(1) atoms. The Se(1)-O(2) bond length is 1.71 Å. Both Se(1)-O(1) bond lengths are 1.71 Å. There are two inequivalent O sites. In the first O site, O(2) is bonded in a 4-coordinate geometry to three equivalent Sr(1) and one Se(1) atom. In the second O site, O(1) is bonded to three equivalent Sr(1) and one Se(1) atom to form a mixture of distorted edge and corner-sharing OSr3Se tetrahedra.