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arXiv · 1403.2640

Coulomb Pairing and Double Photoionization in Aromatic Hydrocarbons

D. L. Huber
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Abstract

Recently reported anomalies in the double-photonionization spectra of the aromatic molecules partially deuterated benzene, naphthalene, anthracene, pentacene, azulene, phenanthrene, pyrene and coronene are attributed to Coulomb-pair resonances of pi electrons. The properties of the resonance in benzene are investigated in detail. The linear behavior in the 2+/1+ ion ratio above the resonance is attributed to a two-electron transition associated with excitation from the ground state to a two-electron continuum. A similar explanation accounts for the linear behavior seen in the pentagonal rings pyrrole, furan, selenophene and thiophene which do not display resonance peaks.

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D. L. Huber. 2014-03-11. Coulomb Pairing and Double Photoionization in Aromatic Hydrocarbons. https://arxiv.org/abs/1403.2640

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