Ion Segregation in Aqueous Solutions

	Ion Segregation in Aqueous Solutions
	Bian, Hongtao 2; Li, Jiebo 2; Zhang, Qiang 1; Chen, Hailong 2; Zhuang, Wei 1; Gao, Yi Qin 3; Zheng, Junrong 2
刊名	journal of physical chemistry b
	2012-12-13
卷号	116 期号:49 页码:14426-14432
通讯作者	庄巍 ; 高毅勤 ; 郑俊荣
产权排序	2,3
英文摘要	microscopic structures and dynamics of aqueous salt solutions were investigated with the ultrafast vibrational energy exchange method and anisotropy measurements. in kscn aqueous solutions of various concentrations, the rotational time constants of scn- anions are proportional to the viscosities of the solutions. however, the reorientation dynamics of the water molecules are only slightly affected by the solution viscosity. with the addition of strongly hydrated f- anions, the rotations of both scn- anions and water molecules slow down. with the addition of weakly hydrated i- anions, only the rotation of scn- anions slows down with that of water molecules unaffected. vibrational energy exchange measurements show that the separation among scn- anions decreases with the addition of f- and increases with the addition of i-. the series of experiments clearly demonstrate that both structures and dynamics of ion and water are segregated in the strong electrolyte aqueous solutions.
学科主题	物理化学
类目[WOS]	chemistry, physical
研究领域[WOS]	chemistry
关键词[WOS]	vibrational-relaxation dynamics ; hydrogen-bond exchange ; ultrafast dynamics ; energy relaxation ; hofmeister series ; reverse micelles ; polar-solvents ; liquid water ; hydration ; anions
收录类别	SCI
语种	英语
WOS记录号	WOS:000312176000024
公开日期	2013-10-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/118163]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Liaoning, Peoples R China 2.Rice Univ, Dept Chem, Houston, TX 77005 USA 3.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Bian, Hongtao,Li, Jiebo,Zhang, Qiang,et al. Ion Segregation in Aqueous Solutions[J]. journal of physical chemistry b,2012,116(49):14426-14432.
APA	Bian, Hongtao.,Li, Jiebo.,Zhang, Qiang.,Chen, Hailong.,Zhuang, Wei.,...&Zheng, Junrong.(2012).Ion Segregation in Aqueous Solutions.journal of physical chemistry b,116(49),14426-14432.
MLA	Bian, Hongtao,et al."Ion Segregation in Aqueous Solutions".journal of physical chemistry b 116.49(2012):14426-14432.