Materials Data on Sr(BrO3)2 by Materials Project

Abstract

Sr(O3Br)2 crystallizes in the monoclinic C2 space group. The structure is three-dimensional. Sr2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Sr–O bond distances ranging from 2.49–2.81 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Sr2+ and one Br5+ atom. The O–Br bond length is 1.75 Å. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two equivalent Br5+ atoms. Both O–Br bond lengths are 2.00 Å. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sr2+ and one Br5+ atom. The O–Br bond length is 1.67 Å. In the fourth O2- site, O2- is bonded in a trigonal planar geometry to one Sr2+ and two equivalent Br5+ atoms. Both O–Br bond lengths are 2.11 Å. Br5+ is bonded in a rectangular see-saw-like geometry to four O2- atoms.