Physics, asked by tanurathor6748, 1 year ago

Explain koopmans theorem based on photoelectron spectroscopy

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Answered by Anonymous

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Koopmans' theorem applies to the removal of an electron from any occupied molecular orbital to form a positive ion. Removal of the electron from different occupied molecular orbitals leads to the ion in different electronic states. ... Excited-state ionization energies can be measured by photoelectron spectroscopy.

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