Showing papers in "Journal of The Chemical Society (resumed) in 1958"

802. Infrared spectra of uranyl nitrate hydrates and rubidium uranyl nitrate

Abstract: The infrared spectra of uranyl nitrate di-, tri-, and hexahydrate have been examined from 3700 to 700 cm/sup -1/, with nitrogen of normal isotopic composition and enriched in N/sup 15/, and most of the bands are assigned. The spectrum of uranyl nitrate hexahydrate is in most respects that of a typical ionic nitrate. The spectra of uranyl nitrate di- and trihydrate are similar to the spectrum of rubldium uranyl nitrate, and all three are closely related to the fluorescence spectrum of cesium uranyl nitrate, studied by Dieke and Duncan. These spectra are all characteristlc of compounds having coordinated nitrato- groups, and structures are suggested for the molecules in crystals of the di- and the trihydrate which account for the observed splitting of many of the bands. (auth)