Coulomb Pairing and Double Photoionization in Aromatic Hydrocarbons
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.
Keywords
Cite
@article{arxiv.1403.2640,
title = {Coulomb Pairing and Double Photoionization in Aromatic Hydrocarbons},
author = {D. L. Huber},
journal= {arXiv preprint arXiv:1403.2640},
year = {2014}
}
Comments
6 pages. arXiv admin note: substantial text overlap with arXiv:1312.0495