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Determination of the ionization energy of the benzene-argon complex by zero kinetic energy photoelectron spectroscopy

✍ Scribed by Leslie A. Chewter; Klaus Müller-Dethlefs; Edward W. Schlag

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
353 KB
Volume
135
Category
Article
ISSN
0009-2614

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✦ Synopsis

We use high-resolution "zero kinetic energy photoelectron spectroscopy (ZEKE PES)" with two-colour two-photon resonant ionization for the investigation of the benzene-argon van der Waals complex in a supersonic skimmed jet. The ZEKE PE spectrum shows only a single peak of s 8 cm-' fwhm. We conclude that the complex undergoes only minimal geometry changes upon ionization. We determine the ionization energy of the complex from the sharp rise in the ZERE PE spectrum to be 74383 f 2 cm-', red-shifted by 172 cm-' from the parent benzene.

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