Hydration Phenomena in a Concentrated Aqueous Solution of Ce(NO₃)₃. X-ray Diffraction and Raman Spectroscopy

Abstract

The scattering of X-rays from a concentrated Ce(NO 3 ) 3 aqueous solution has been measured and analyzed. The experimental correlation function appears to be mainly characterized by the hydration of the cation: peaks at about 2.55 and 4.65 Å. Good agreement with experimental data is achieved through a model in which the Ce(III) ions have a first and a second hydration shell and also the nitrate group is considered hydrated. Complex formation between cation and anion is confirmed by using Raman spectroscopy.