Bi6(SeO3)3O5Br2: A new bismuth oxo-selenite bromide

► New bismuth oxo-selenite bromide was found and structurally characterized. ► Bi6(SeO3)3O5Br2 exhibit a new open framework structure type. ► BiOx or BiOyBrz polyhedrons form channels in the structure which are decorated by [SeO3E] groups.