Ratiometric detection of Raman hydration shell spectra
Ratiometric detection of Raman hydration shell spectra
复制标题
拉曼水合壳层光谱的比例检测
DOI：
10.1002/jrs.4940
复制
发表时间：
2016
影响因子：
2.5
通讯作者：
Lin K
中科院分区：
文献类型：
--
作者：
Wang Yuxi;Zhu Weiduo;Yuan Lanfeng;Zhou Xiaoguo;Liu Shilin;Lin Ke;Zhou Xiaoguo;Yuan LF;Liu SL;Lin K
The micro-structure of hydration shell of solute in water is significant for understanding the properties of aqueous solutions. However the spectra of hydration shell are difficult to be obtained. Herein, a novel Raman ratio spectra, which is obtained through dividing the Raman spectra of aqueous solutions from the spectrum of water, was applied to deduce the spectra of hydration shell of organic (acetone-D6) and inorganic compounds (NaNO3, NaSCN, NaClO4, Na2SO4, NaCl) in water. Those spectra of the hydration shell were employed to study the micro-structures of the first hydration shells of anions, the number of water molecules in the first hydration shell of free anions and acetone-D6, and the aggregation behavior of ions in the concentrated aqueous NaNO3. The number of water molecules in the hydration shell was supported by our molecular dynamic simulations. The Raman ratio spectra can be widely employed to obtain the spectra of the first hydration shell, and it is helpful to understand the micro-structure of aqueous solutions. Copyright © 2016 John Wiley & Sons, Ltd.
