Hydration and Ion Pair Formation in Aqueous Lu3+- Solution.

ABSTRACT: Aqueous solutions of Lu3+- perchlorate, triflate and chloride were measured by Raman spectroscopy. A weak, isotropic mode at 396 cm-1 (full width at half height (fwhh) at 50 cm-1) was observed in perchlorate and triflate solutions. This mode was assigned to the totally symmetric stretching mode of [Lu(OH₂)₈]3+, ν₁LuO₈. In Lu(ClO₄)₃ solutions in heavy water, the ν₁LuO₈ symmetric stretch of [Lu(OD₂)₈]3+ appears at 376.5 cm-1. The shift confirms the theoretical isotopic effect of this mode. In the anisotropic scattering of aqueous Lu(ClO₄)₃, five bands of very low intensity were observed at 113 cm-1, 161.6 cm-1, 231 cm-1, 261.3 cm-1 and 344 cm-1. In LuCl₃ (aq) solutions measured over a concentration range from 0.105⁻3.199 mol·L-1 a 1:1 chloro-complex was detected. Its equilibrium concentratio

SUBMITTER: Rudolph W 

PROVIDER: S-EPMC6321123 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature