Effects of HPO42- and SCN- on the hydrogen bond network of water: femtosecond OHD-RIKES and FTIR measurements

被引：5
作者：
Hou, Mengqi [1 ]
Yu, Anchi [1 ]
Lu, Rong [1 ]
机构：
[1] Renmin Univ China, Dept Chem, Beijing 100872, Peoples R China
来源：
JOURNAL OF RAMAN SPECTROSCOPY | 2017年 / 48卷 / 01期
基金：
中国国家自然科学基金;
关键词：
KSCN; K2HPO4; hydrogen bond; stretching band; low-frequency vibration; KERR-EFFECT SPECTROSCOPY; MOLECULAR-DYNAMICS SIMULATION; LOW-FREQUENCY MODES; OPTICAL-KERR; AQUEOUS-SOLUTIONS; RAMAN-SPECTROSCOPY; ULTRAFAST DYNAMICS; LIQUID WATER; PHOSPHATE IONS; HYDRATION;
D O I：
10.1002/jrs.4989
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
The influence of an ion on the hydrogen bond (HB) structure of water is of potential interest in various aspects. Herein, we studied the effects of HPO42- and SCN- on the HB network of water in their aqueous solutions by using both femtosecond optical heterodyne-detected Raman-induced Kerr effect spectroscopy (fs OHD-RIKES) and Fourier transform infrared spectroscopy (FTIR) spectroscopy. We found that both the amplitude of the 180cm(-1) HB stretching band of water in the fs OHD-RIKES fast Fourier-transformed spectrum and the amplitude of the 3290cm(-1) HB-related stretching band of water in the FTIR spectrum are obviously enhanced in the high-concentrated K2HPO4 solution, suggesting that HPO42- has the ability to make the HB of water in its aqueous solution. On the contrary, SCN- has the ability to break the HB of water in its aqueous solution. Copyright (c) 2016 John Wiley & Sons, Ltd.
引用
收藏
页码：108 / 112
页数：5
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