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Intramolecular penning ionization in organic molecule-rare gas clusters

✍ Scribed by W. Kamke; B. Kamke; H.U. Kiefl; Z. Wang; I.V. Hertel

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 482 KB
Volume: 128
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(86)80385-2

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✦ Synopsis

A supersonic beam of organic molecules (benzonitrile (Bn), toluene (To& benzene (Bz) and pyridine (Pyr)) seeded into Ne or Ar was ionized by VW radiation from the Berlin electron storage ring (BESSY). Photoionixation efficiency curves were measured for Bn, BnNe, BnAr, Tol, ToleAr, TolaNe, Bz, Pyr, PypAr, and PyNe. Resonance peaks in these spectra at the positions of the atomic rare gas resonance lines confirm our previous measurements on Bn seeded into Ar and Kr, showing that the excitation energy of the rare gas atom is transferred to the attached organic molecule within a heterogeneous cluster, leading to ionization of the molecule and fragmentation of the cluster.

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