Is febr3 binary ionic or ionic with polyatomic ion?

Iron (III) bromine, or FeBr3 is a binary ionic compound. Its ions are the metal Fe and the non-metal Br (the number of bromines per molecule doesn't influence the answer). A polyatomic ion is one which has one or more atoms of two or more elements, such as carbonate (CO3), hydroxide (OH), or nitrite (NO2), just to name a few.