Photoemission from non-polar aromatic molecules in the gas and liquid phase

• Published in: Physical chemistry chemical physics : PCCP Vol. 22; no. 7; pp. 3965 - 3974
• Main Authors: Longetti, L, Randulová, M, Ojeda, J, Mewes, L, Miseikis, L, Grilj, J, Sanchez-Gonzalez, A, Witting, T, Siegel, T, Diveki, Z, van Mourik, F, Chapman, R, Cacho, C, Yap, S, Tisch, J. W. G, Springate, E, Marangos, J. P, Slaví ek, P, Arrell, C. A, Chergui, M
• Format: Journal Article
• Language: English
• Published: England Royal Society of Chemistry 19.02.2020
• Subjects: Electrokinetics; Harmonic generations; Liquid phases; Molecular dynamics; Photoelectric emission; Photoelectrons; Spectrum analysis; Trimethylbenzene; Vapor phases
• ISSN: 1463-9076; 1463-9084
• DOI: 10.1039/c9cp06799j

The photoelectron spectra of both liquid and gas phase aromatic molecules are reported. The spectra were obtained using a 34.1 eV source produced by high harmonic generation and analysed with the help of high-level ab initio simulations using the reflection principle combined with path integral molecular dynamics simulations accounting for nuclear quantum effects for the gas phase. We demonstrate the suitability of three trimethylbenzenes (1,3,5-trimethylbenzene, 1,2,3-trimethylbenzene and 1,2,4-trimethylbenzene) as a solvent for liquid photoelectron spectroscopy of solute species. We also discuss the electrokinetic charging of a non-polar liquid jet. Photoelectron spectra of both liquid and gas phase aromatic molecules are reported.