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学科主题物理化学
Ion Segregation in Aqueous Solutions
Bian, Hongtao2; Li, Jiebo2; Zhang, Qiang1; Chen, Hailong2; Zhuang, Wei1; Gao, Yi Qin3; Zheng, Junrong2; Zhuang W(庄巍); Gao YQ(高毅勤); Zheng JR(郑俊荣)
刊名JOURNAL OF PHYSICAL CHEMISTRY B
2012-12-13
DOI10.1021/jp310153n
116期:49页:14426-14432
收录类别SCI
文章类型Article
部门归属11
项目归属1107
产权排名2,3
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
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.
语种英语
WOS记录号WOS:000312176000024
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/118163
专题中国科学院大连化学物理研究所
通讯作者Zhuang W(庄巍); Gao YQ(高毅勤); Zheng JR(郑俊荣)
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.,...&郑俊荣.(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.
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