DICP OpenIR
Subject Area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)
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
2012-12-13
DOI10.1021/jp310153n
Volume116Issue:49Pages:14426-14432
Indexed BySCI
SubtypeArticle
Department11
Funding Project1107
Contribution Rank2,3
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordVIBRATIONAL-RELAXATION DYNAMICS ; HYDROGEN-BOND EXCHANGE ; ULTRAFAST DYNAMICS ; ENERGY RELAXATION ; HOFMEISTER SERIES ; REVERSE MICELLES ; POLAR-SOLVENTS ; LIQUID WATER ; HYDRATION ; ANIONS
AbstractMicroscopic 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.
Language英语
WOS IDWOS:000312176000024
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/118163
Collection中国科学院大连化学物理研究所
Corresponding AuthorZhuang W(庄巍); Gao YQ(高毅勤); Zheng JR(郑俊荣)
Affiliation1.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
Recommended Citation
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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