Is fast relaxation water really a free water?

被引：0
|
作者：
Jeong, Jin-Young [1 ,2 ]
Jang, Jungmin [1 ,2 ]
Patra, Animesh [1 ,2 ]
Eom, Kihoon [1 ,2 ]
Park, Inkyoung [1 ,2 ]
Yang, Yuncheol [1 ,2 ]
Kim, Seonmyeong [1 ,2 ]
Di Tommaso, Devis [3 ]
Park, Gun-Sik [1 ,2 ]
机构：
[1] Seoul Natl Univ, Dept Phys & Astron, Seoul 151747, South Korea
[2] Seoul Natl Univ, Ctr THz Driven Biol Syst, Seoul 151747, South Korea
[3] Queen Mary Univ London, Sch Biol & Chem Sci, Mile End Rd, London E1 4NS, England
来源：
2017 42ND INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2017年
关键词：
DIELECTRIC-RELAXATION; HYDRATION;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The origin of fast relaxation water in the terahertz frequency range have been elusive for years. In this contribution we have experimentally investigated the change in dynamical structure of water in salt solution using broadband dielectric relaxation spectroscopy (DRS) in the GHz to THz region to study the fast water. Numerical simulations have been conducted to quantify the dynamical properties in the hydration shell of the ions, including rotational and translational residence times. As the amount of the fast water increases with salt solution concentration, the fraction of water molecules with zero or one hydrogen-bond (HB) is also increased. We can conclude that the fast water is composed of the free water and one hydrogen-bonded water.
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页数：2
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