Large-scale ab initio calculations of archetypical ionic liquids

Area of Science:

• Computational chemistry
• Materials science

Background:

• Ionic liquids are tunable solvents with diverse applications.
• Accurate computational modeling is crucial for designing ionic liquids with specific properties.
• Predicting transport properties of ionic liquids is computationally challenging.

Purpose of the Study:

• To perform fully ab initio large-scale calculations on ionic liquids.
• To validate the Fragment Molecular Orbital (FMO) approach for ionic liquid systems.
• To enable accurate prediction of ionic liquid transport properties.

Main Methods:

• Fully ab initio large-scale calculations.
• Application and validation of the Fragment Molecular Orbital (FMO) approach.
• Modeling of archetypical ionic liquids with up to eight ion pairs.

Main Results:

• Demonstrated the feasibility of large-scale ab initio calculations for ionic liquids.
• Validated the FMO approach for semi-Coulombic systems like ionic liquids.
• Established a pathway for accurate prediction of transport properties.

Conclusions:

• The Fragment Molecular Orbital (FMO) approach is a computationally efficient and accurate method for studying ionic liquids.
• This work paves the way for the in silico design and optimization of ionic liquids.
• Accurate prediction of transport properties will accelerate the development of new ionic liquid applications.