Modeling Electron Transfers Using Quasidiabatic Hartree-Fock States

Area of Science:

• Theoretical Chemistry
• Computational Chemistry
• Materials Science

Background:

• Electron transfer is crucial in biological and commercial systems.
• Accurate ab initio modeling of electron transfer is computationally challenging.
• Existing methods struggle with complex systems and high computational costs.

Purpose of the Study:

• To develop an efficient computational method for describing electron transfer reactions.
• To utilize readily available Hartree-Fock solutions as a quasidiabatic basis.
• To investigate electron transfer in a model Grätzel-type solar cell.

Main Methods:

• Employing Hartree-Fock solutions as a quasidiabatic basis.
• Utilizing nonorthogonal configuration interaction calculations.
• Applying the Marcus framework for electron transfer analysis.

Main Results:

• Successfully described electron transfer processes using the quasidiabatic basis.
• Quantified interactions between electronic states.
• Provided accurate electron transfer description for a titanium-alizarin complex.

Conclusions:

• The proposed method offers an efficient and accurate way to study electron transfer.
• This approach facilitates the investigation of systems difficult to study experimentally.
• The findings are relevant for the development of solar cell technologies.