3 years ago

NaX solvation bonding dynamics:hydrogen bond and surface stress transition (X=HSO4, NO3, ClO4, SCN)

NaX solvation bonding dynamics:hydrogen bond and surface stress transition (X=HSO4, NO3, ClO4, SCN)
Raman phonon differential spectrometrics (DPS) and contact angle measurements resolved that solvation of the NaX (X=HSO4, NO3, ClO4, SCN) complex salts stiffens the HO stretching phonon from 3200 to ~3500cm1 and softens the O:H nonbond phonon from 180 to ~70cm1 with rising of solution surface stress. The solute capability of bond transition in terms of the fraction coefficient, follows the relation, fNaX(C)1-exp(−C/C0) towards saturation, with C being the solute concentration and C0 the decay constant. Observations evidence that: (i) the solute ionic field electrification aligns, stretches, and polarizes its neighboring H2O molecules, which shortens the HO bond but lengthens the O:H nonbond via OO Coulomb repulsion; (ii) the effect of X electrification on the O:HO bond relaxation varies with solute type and solute concentration. Exercises not only verify the essentiality of solvent O:HO bond cooperative relaxation and polarization but also demonstrate the power of DPS that resolves processes occurred upon solvation.

Publisher URL: www.sciencedirect.com/science

DOI: S0167732217315222

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.