Sr(O3Br)2 crystallizes in the monoclinic Cc space group. Sr(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(5), one O(6), two equivalent O(1), and two equivalent O(4) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to two equivalent Sr(1) and one Br(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Sr(1) and one Br(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Sr(1) and one Br(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent Sr(1) and one Br(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Sr(1) and one Br(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Sr(1) and one Br(2) atom. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. In the second Br site, Br(2) is bonded in a trigonal non-coplanar geometry to one O(4), one O(5), and one O(6) atom.
Sr(O3Br)2 crystallizes in the monoclinic Cc space group. Sr(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(5), one O(6), two equivalent O(1), and two equivalent O(4) atoms. The Sr(1)-O(2) bond length is 2.55 Å. The Sr(1)-O(3) bond length is 2.52 Å. The Sr(1)-O(5) bond length is 2.57 Å. The Sr(1)-O(6) bond length is 2.55 Å. There is one shorter (2.65 Å) and one longer (2.69 Å) Sr(1)-O(1) bond length. There is one shorter (2.71 Å) and one longer (2.78 Å) Sr(1)-O(4) bond length. There are six inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to two equivalent Sr(1) and one Br(1) atom. The O(1)-Br(1) bond length is 1.67 Å. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Sr(1) and one Br(1) atom. The O(2)-Br(1) bond length is 1.66 Å. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Sr(1) and one Br(1) atom. The O(3)-Br(1) bond length is 1.66 Å. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent Sr(1) and one Br(2) atom. The O(4)-Br(2) bond length is 1.68 Å. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Sr(1) and one Br(2) atom. The O(5)-Br(2) bond length is 1.67 Å. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Sr(1) and one Br(2) atom. The O(6)-Br(2) bond length is 1.66 Å. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. In the second Br site, Br(2) is bonded in a trigonal non-coplanar geometry to one O(4), one O(5), and one O(6) atom.