Structural Properties of Hydrogen Fluoride in Aqueous Solution Using Reactive Force Field.

Area of Science:

• Physical Chemistry
• Computational Chemistry
• Materials Science

Background:

• Analyzing atomic-scale hydrogen fluoride (HF) in water is challenging due to HF's high reactivity.
• Understanding HF aqueous solution dynamics is crucial for advanced material applications.

Purpose of the Study:

• To investigate the geometric and energetic properties of HF in aqueous solutions.
• To elucidate the behavior and growth mechanisms of HF clusters in water.

Main Methods:

• Utilized molecular dynamics simulations with a reactive force field.
• Validated the force field's accuracy for bulk HF aqueous solutions.

Main Results:

• Confirmed stable dimer and trimer structures of HF molecules with a parallel shape.
• Observed that water molecules limit the directional growth of larger HF clusters.
• Identified planar growth patterns with two layers of fluorine atoms.

Conclusions:

• The study provides a detailed atomic-scale understanding of HF aqueous solution dynamics.
• Findings offer insights for designing nanoscale devices and improving semiconductor manufacturing.