Saturn Systems.

Area of Science:

• Computational chemistry
• Supramolecular chemistry
• Materials science

Background:

• Fullerene derivatives and their supramolecular assemblies are of significant interest.
• Understanding host-guest interactions is crucial for designing novel materials.
• Density Functional Theory (DFT) is a powerful tool for studying molecular systems.

Purpose of the Study:

• To investigate the structural and electronic properties of Saturn systems using DFT.
• To compare computational results with experimental X-ray data.
• To evaluate the impact of lithium cation encapsulation on host-guest interactions.

Main Methods:

• Density Functional Theory (DFT) calculations with dispersion corrections.
• Geometry optimization and electronic structure analysis.
• Comparison of computed properties with experimental X-ray diffraction data.

Main Results:

• DFT calculations show good agreement with experimental X-ray structures for three Saturn systems.
• Binding enthalpies and free energies were computed in various solvents.
• Encapsulation of a lithium cation significantly enhances donor-acceptor interactions and charge transfer.

Conclusions:

• DFT methods, including dispersion, accurately model Saturn systems.
• Lithium encapsulation in C60-based systems leads to stronger intermolecular interactions.
• These findings have implications for the design of functional supramolecular materials.