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Issue 30, 2018
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Photophysics of indole upon X-ray absorption

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Abstract

A photofragmentation study of gas-phase indole (C8H7N) upon single-photon ionization at a photon energy of 420 eV is presented. Indole was primarily inner-shell ionized at its nitrogen and carbon 1s orbitals. Electrons and ions were measured in coincidence by means of velocity map imaging. The angular relationship between ionic fragments is discussed along with the possibility to use the angle-resolved coincidence detection to perform experiments on molecules that are strongly oriented in their recoil-frame. The coincident measurement of electrons and ions revealed fragmentation-pathway-dependent electron spectra, linking the structural fragmentation dynamics to different electronic excitations. Evidence for photoelectron-impact self-ionization was observed.

Graphical abstract: Photophysics of indole upon X-ray absorption

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Article information


Submitted
08 Feb 2018
Accepted
13 Jul 2018
First published
18 Jul 2018

Phys. Chem. Chem. Phys., 2018,20, 20205-20216
Article type
Paper
Author version available

Photophysics of indole upon X-ray absorption

T. Kierspel, C. Bomme, M. Di Fraia, J. Wiese, D. Anielski, S. Bari, R. Boll, B. Erk, J. S. Kienitz, N. L. M. Müller, D. Rolles, J. Viefhaus, S. Trippel and J. Küpper, Phys. Chem. Chem. Phys., 2018, 20, 20205
DOI: 10.1039/C8CP00936H

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