Mediating relaxation and polarization of hydrogen-bonds in water by NaCl salting and heating

Infrared spectroscopy and contact-angle measurements revealed that NaCl salting has the same effect as heating on O:H phonon softening and H–O phonon stiffening, but has the opposite effect on skin polarization of liquid water. The mechanics of thermal modulation of O–O Coulomb repulsion [Sun, et al...

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Main Authors: Zhang, Xi, Yan, Tingting, Huang, Yongli, Ma, Zengsheng, Liu, Xinjuan, Zou, Bo, Sun, Changqing
其他作者: School of Electrical and Electronic Engineering
格式: Article
語言:English
出版: 2014
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在線閱讀:https://hdl.handle.net/10356/103411
http://hdl.handle.net/10220/24508
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總結:Infrared spectroscopy and contact-angle measurements revealed that NaCl salting has the same effect as heating on O:H phonon softening and H–O phonon stiffening, but has the opposite effect on skin polarization of liquid water. The mechanics of thermal modulation of O–O Coulomb repulsion [Sun, et al., J. Phys. Chem. Lett., 2013, 4, 3238] may suggest a possible mechanism for this NaCl involved Hofmeister effect, aqueous solution modulated surface tension and its abilities in protein dissolution, from the perspective of Coulomb mediation of interaction within the O:H–O bond.