On the Hydration of Heavy Rare Earth Ions: Ho³⁺, Er³⁺, Tm³⁺, Yb³⁺ and Lu³⁺-A Raman Study.

ABSTRACT: Raman spectra of aqueous Ho³⁺, Er³⁺, Tm³⁺, Yb³⁺, and Lu³⁺-perchlorate solutions were measured over a large wavenumber range from 50-4180 cm^-1. In the low wavenumber range (terahertz region), strongly polarized Raman bands were detected at 387 cm^-1, 389 cm^-1, 391 cm^-1, 394 cm^-1, and 396 cm^-1, respectively, which are fairly broad (full widths at half height at ~52 cm^-1). These isotropic Raman bands were assigned to the breathing modes, ν₁ Ln-O of the heavy rare earth (HRE) octaaqua ions, [Ln(H₂O)₈]³⁺. The strong polarization of these bands (depolarization degree ~0) reveals their totally symmetric character. The vibrat

SUBMITTER: Rudolph W 

PROVIDER: S-EPMC6572539 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature