Yttrium(III) bromide explained

Yttrium(III) bromide is an inorganic compound with the chemical formula YBr₃. It is a white solid. Anhydrous yttrium(III) bromide can be produced by reacting yttrium oxide or yttrium(III) bromide hydrate and ammonium bromide. The reaction proceeds via the intermediate (NH₄)₃YBr₆.^[1] Another method is to react yttrium carbide (YC₂) and elemental bromine.^[2] Yttrium(III) bromide can be reduced by yttrium metal to YBr or Y₂Br₃.^[3] It can react with osmium to produce Y₄Br₄Os.^[4]

Notes and References

1. Gerd Meyer, Siegfried Dötsch, Thomas Staffel. 1987. The ammonium-bromide route to anhydrous rare earth bromides MBr3. Journal of the Less Common Metals. en. 127. 155–160. 10.1016/0022-5088(87)90372-9.
2. Mussler, R. E.; Campbell, T. T.; Block, F. E.; Robidart, G. B. Metallothermic reduction of yttrium halides. Bureau of Mines Report of Investigations, 1963. 6259. pp 21.
3. H. Mattausch, J. B. Hendricks, R. Eger, J. D. Corbett, A. Simon. 1980. Reduced halides of yttrium with strong metal-metal bonding: yttrium monochloride, monobromide, sesquichloride, and sesquibromide. Inorganic Chemistry. en. 19. 7. 2128–2132. 10.1021/ic50209a057. 0020-1669.
4. Peter K. Dorhout, John D. Corbett. 1992. A novel structure type in reduced rare-earth metal halides. One-dimensional confacial chains based on centered square antiprismatic metal units: Y4Br4Os and Er4Br4Os. Journal of the American Chemical Society. en. 114. 5. 1697–1701. 10.1021/ja00031a024. 0002-7863.