Journal
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
Volume 14, Issue 9, Pages 4629-4639Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jctc.8b00379
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Funding
- Royal Society [UF110161]
- Magdalene College, Cambridge
- Royal Society [UF110161] Funding Source: Royal Society
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Electron transfer processes are ubiquitous in chemistry and of great importance in many systems of biological and commercial interest. The ab initio description of these processes remains a challenge in theoretical chemistry, partly due to the high scaling of many post-Hartree-Fock computational methods. This poses a problem for systems of interest that are not easily investigated experimentally. We show that readily available Hartree-Fock solutions can be used as a quasidiabatic basis to understand electron transfer reactions in a Marcus framework. Non-orthogonal configuration interaction calculations can be used to quantify interactions between the resulting electronic states, and to investigate the adiabatic electron transfer process. When applied to a titanium-alizarin complex used as a model of a Gratzel-type solar cell, this approach yields a correct description of the electron transfer and provides information about the electronic states involved in the process.
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