Intercalation reactions of UTeO5 and USeO5

New intercalation compounds of the pseudo-layered oxides UVITeIVO5 and UVISeIVO5 have been prepared and characterised. At ambient temperatures products of the type AxUMO5(x⩽ 1; A = Li, Na, H, NH4) are formed by both host oxides with minimal structural change. Magnetic susceptibility measurements confirm that UV species are formed on intercalation.