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Pressure stability of the first hydration shell of yttrium in aqueous YCl3 solution
High Pressure Research ( IF 2 ) Pub Date : 2020-01-02 , DOI: 10.1080/08957959.2020.1724998
M. Elbers 1 , C. Sternemann 1 , K. Julius 1 , M. Paulus 1 , G. Surmeier 1 , N. König 1 , J. Nase 1 , J. Bolle 1 , R. Wagner 2 , T. Irifune 3 , M. Tolan 1
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ABSTRACT The pressure stability of the first hydration shell of Y ions in aqueous solution has been investigated by means of extended x-ray absorption fine-structure spectroscopy at the yttrium K-edge for hydrostatic pressures up to 4.5 kbar and concentrations between 1 M and 2.5 M. We find approximately 8.4 water molecules surrounding the yttrium cation at a mean distance of 2.370 Å at ambient conditions, independent on the concentration. The yttrium hydration shell has a low compressibility in the order of Å kbar emphasizing its pressure stability in the kbar range. At the studied conditions, no indication for chloride complexation was observed.

中文翻译:

钇第一水合壳层在 YCl3 水溶液中的压力稳定性

摘要 通过在高达 4.5 kbar 的静水压力和 1 M 和 2.5 之间的浓度下,钇 K 边缘的扩展 X 射线吸收精细结构光谱研究了水溶液中 Y 离子的第一个水合壳层的压力稳定性。 M. 在环境条件下,我们发现大约 8.4 个水分子围绕着钇阳离子,平均距离为 2.370 Å,与浓度无关。钇水合壳具有 Å kbar 量级的低压缩率,强调其在 kbar 范围内的压力稳定性。在研究的条件下,没有观察到氯化物络合的迹象。
更新日期:2020-01-02
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