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How is the redox potential related to the HOMO and LUMO frontier orbitals?

April 26, 2017Frontier homo orbitals potential redox

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How is the redox potential related to the HOMO and LUMO frontier orbitals?

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In a reduction process, an electron is added to the LUMO (Lowest Unoccupied Molecular Orbital), and whereas in an oxidation process, an electron is removed from the HOMO (Highest Occupied Molecule Orbital). Therefore, there should be a correlation between changes in the frontier orbitals and redox potentials due to changes in substitutents.