Citation: Roll, Mark F.; Mathur, Priyanka; Takahashi, Kunio; Kampf, Jeffrey W.; Laine, R. M. (2011). [PhSiO1.5]8 promotes self-bromination to produce [o-BrPhSiO1.5]8: further bromination gives crystalline [2,5-Br2PhSiO1.5]8 with a density of 2.32 g cm−3 and a calculated refractive index of 1.7 or the tetraicosa bromo compound [Br3PhSiO1.5]8. Journal of Materials Chemistry, 21, pp. 11167-.