Anion dependent ion pairing in concentrated ytterbium halide solutions

作者：Klinkhammer Christina^*; Boehm Fabian; Sharma Vinay; Schwaab Gerhard; Seitz Michael; Havenith Martina

来源：Journal of Chemical Physics, 2018, 148(22): 222802.

DOI：10.1063/1.5016549

We have studied ion pairing of ytterbium halide solutions. THz spectra (30-400 cm(-1)) of aqueous YbCl3 and YbBr3 solutions reveal fundamental differences in the hydration structures of YbCl3 and YbBr3 at high salt concentrations: While for YbBr3 no indications for a changing local hydration environment of the ions were experimentally observed within the measured concentration range, the spectra of YbCl3 pointed towards formation of weak contact ion pairs. The proposed anion specificity for ion pairing was confirmed by supplementary Raman measurements. Published by AIP Publishing.

• 出版日期2018-6-14