Rice Univesrity Logo
    • FAQ
    • Deposit your work
    • Login
    View Item 
    •   Rice Scholarship Home
    • Faculty & Staff Research
    • Faculty Publications
    • View Item
    •   Rice Scholarship Home
    • Faculty & Staff Research
    • Faculty Publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    The opposite effects of sodium and potassium cations on water dynamics

    Thumbnail
    Name:
    c6sc03320b.pdf
    Size:
    1.339Mb
    Format:
    PDF
    View/Open
    Author
    Zhang, Qiang; Chen, Hailong; Wu, Tianmin; Jin, Tan; Pan, Zhijun; More... Zheng, Junrong; Gao, Yiqin; Zhuang, Wei Less...
    Date
    2017
    Abstract
    Water rotational dynamics in NaSCN and KSCN solutions at a series of concentrations are investigated using femtosecond infrared spectroscopy and theory. Femtosecond infrared measurements, consistent with previous NMR observations, detect that sodium slows down while potassium accelerates the water O–H bond rotation. Results of reported neutron scattering measurements, on the other hand, suggested that these two cations have similar structure-breaking effects on water, and therefore should both accelerate water rotation through the presumably dominating large-amplitude angular jump component. To explain this discrepancy, theoretical studies with both classical and ab initio models were carried out, which indicate that both ions indeed accelerate the large-amplitude angular jump rotation of the water molecules, while the observed cation specific effect originates from the non-negligible opposite impact of the sodium and potassium cations on the diffusive rotation of water molecules.
    Citation
    Zhang, Qiang, Chen, Hailong, Wu, Tianmin, et al.. "The opposite effects of sodium and potassium cations on water dynamics." Chemical Science, (2017) Royal Society of Chemistry: http://dx.doi.org/10.1039/c6sc03320b.
    Published Version
    http://dx.doi.org/10.1039/c6sc03320b
    Type
    Journal article
    Publisher
    Royal Society of Chemistry
    Citable link to this page
    https://hdl.handle.net/1911/92729
    Rights
    This Open Access Article is licensed under a Creative Commons Attribution-Non Commercial 3.0 Unported Licence
    Link to License
    https://creativecommons.org/licenses/by-nc/3.0/
    Metadata
    Show full item record
    Collections
    • Chemistry Publications [636]
    • Faculty Publications [4990]

    Home | FAQ | Contact Us | Privacy Notice | Accessibility Statement
    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892
    Site Map

     

    Searching scope

    Browse

    Entire ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsTypeThis CollectionBy Issue DateAuthorsTitlesSubjectsType

    My Account

    Login

    Statistics

    View Usage Statistics

    Home | FAQ | Contact Us | Privacy Notice | Accessibility Statement
    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892
    Site Map