Related Experiment Video
Updated: Jan 18, 2026
Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy
Published on: May 27, 2018
Hydrogen Bond Disruption-Induced Ion Rearrangement in Acetonitrile-Water-Sodium Sulfate Solutions.
Huan Jiang1,2, Jiayi Jiang1, Ying Wang3
1Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China.
Raman spectroscopy reveals how acetonitrile affects sodium sulfate solutions. Acetonitrile concentration influences ion clustering and hydration, impacting electrolyte behavior.
Area of Science:
- Physical Chemistry
- Solution Chemistry
- Spectroscopy
Background:
- Hydrogen bonding and ion-specific interactions in mixed solvents are complex.
- Understanding these interactions is crucial for electrolyte design.
Purpose of the Study:
- To investigate hydrogen bonding and ion reorganization in sodium sulfate-acetonitrile-water solutions.
- To elucidate the role of acetonitrile concentration on ion hydration and clustering.
Main Methods:
- Raman spectroscopy was used to probe molecular interactions.
- Solutions with varying concentrations of sodium sulfate and acetonitrile in water were studied.
Main Results:
- Low acetonitrile disrupted ion hydration, forming small ion clusters.
- Increased acetonitrile led to ACN self-association, forming ion pairs, then ion hydrates.
- Acetonitrile's regulatory effect on ions decreased with higher sodium sulfate concentrations.
Conclusions:
- Acetonitrile concentration dictates ion organization and hydration in aqueous solutions.
- Findings provide insights into electrolyte mechanisms and guide electrolyte optimization.
More Related Videos
06:35Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
08:40Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Related Concept Videos
02:11Leveling Effect and Non-Aqueous Acid-Base Solutions
The Leveling Effect of a Solvent
A generic acid (HA) reacts with the generic base (B-) to yield the corresponding conjugate base (A-) and conjugate acid (HB):
01:01Acid Halides to Carboxylic Acids: Hydrolysis
As shown below, the mechanism involves a nucleophilic attack by water at the carbonyl carbon to form a tetrahedral intermediate. This is followed by the reformation of the carbon–oxygen π bond along with the departure of a halide ion. A final proton transfer step yields carboxylic...
02:42Aqueous Solutions and Heats of Hydration
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...
02:28Intermolecular Forces in Solutions
When the strengths of the intermolecular forces of attraction between solute and solvent species in a solution are no different than those present in the separated components, the solution is formed with no accompanying energy change. Such a solution is called an ideal solution. A mixture of ideal gases (or gases such as helium and argon,...
03:24Common Ion Effect
02:34Regioselectivity and Stereochemistry of Acid-Catalyzed Hydration