posted on 2016-03-14, 17:19authored byGregory Morrison, T. Thao Tran, P. Shiv Halasyamani, Hans-Conrad zur Loye
Single
crystals of K8(K5F)U6Si8O40 were grown from a mixed alkali halide flux. K8(K5F)U6Si8O40 is
the first intergrowth uranyl silicate, being composed of alternating
slabs related to two previously reported uranyl silicates: Cs2USiO6 and [Na9F2][(UO2)(UO2)2(Si2O7)2]. It exhibits intense luminescence, which is influenced by
the [(UO2)2O] dimers present in the structure.