A core-level photoionization study of furan

Rennie, E. E.; Hergenhahn, U.; Kugeler, O.; Rüdel, A.; Marburger, S.; Bradshaw, A. M.

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A core-level photoionization study of furan

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Rennie, E. E.
Max Planck Society;

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Hergenhahn, U.
Electron Spectroscopy Group (ELSPEC), Max Planck Institute for Plasma Physics, Max Planck Society;

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Kugeler, O.
Electron Spectroscopy Group (ELSPEC), Max Planck Institute for Plasma Physics, Max Planck Society;

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Bradshaw, A. M.
Office of the Director (DI), Max Planck Institute for Plasma Physics, Max Planck Society;

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Citation

Rennie, E. E., Hergenhahn, U., Kugeler, O., Rüdel, A., Marburger, S., & Bradshaw, A. M. (2002). A core-level photoionization study of furan. Journal of Chemical Physics, 117(14), 6524-6532.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0027-407E-3

Abstract

We have measured the vibrationally resolved C 1s photoelectron spectrum of the aromatic heterocycle furan (C4H4O). The vibrational profile appears to be dominated by a low-frequency mode, which shows an unusually high degree of excitation for ionization of the C atoms furthest from the oxygen. Our experimental results are compared with calculations, which reveal that several different vibrational modes participate in the vibrational pattern. A well resolved C 1s satellite spectrum at a photon energy of 335 eV has also been measured, and is compared to previous experimental and theoretical results. In a separate experiment the partial electron yield ("absorption") spectrum has been obtained in the region from just below the C 1s pi* resonance up to the respective ionization thresholds. A new high intensity feature has been identified on the high-energy flank of the C 1s(-1)pi(3b(1))(*) resonance. With the aid of resonant Auger spectroscopy we have tentatively assigned this feature to a Rydberg resonance. We also present the C 1s and O 1s Auger spectra of furan. (C) 2002 American Institute of Physics.