A pulsed uniform Laval expansion coupled with single photon ionization and mass spectrometric detection for the study of large molecular aggregates

Physical Chemistry Chemical Physics : PCCP
Bernhard SchläppiRuth Signorell

Abstract

We report on a new instrument that allows for the investigation of weakly-bound molecular aggregates under equilibrium conditions (constant temperature and pressure). The aggregates are formed in a Laval nozzle and probed with time-of-flight mass spectrometry in the uniform postnozzle flow; i.e. in the equilibrium region of the flow. Aggregates over a very broad size range from the monomer to particle sizes of 10-20 nm can be generated and studied with this setup. Soft ionization of the aggregates is performed with single photons from a homemade vacuum ultraviolet laser. The mass spectrometric detection provides molecular-level information on the size and chemical composition of the aggregates. This new instrument is useful for a broad range of cluster studies that require well-defined conditions.

References

Jan 27, 2007·Science·E Vöhringer-MartinezB Abel
Oct 24, 2007·The Journal of Chemical Physics·Kristina IlandDimo Kashchiev
Mar 20, 2010·Physical Chemistry Chemical Physics : PCCP·Piotr W ForysinskiRuth Signorell
Aug 25, 2011·The Journal of Chemical Physics·Hartawan LaksmonoBarbara E Wyslouzil
Apr 3, 2014·The Review of Scientific Instruments·Oleg V Boyarkin, Vladimir Kopysov

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Citations

May 10, 2017·The Journal of Physical Chemistry. a·Satrajit ChakrabartyRuth Signorell
Nov 28, 2017·Mass Spectrometry Reviews·Michal Fárník, Jozef Lengyel
Jul 8, 2020·Physical Chemistry Chemical Physics : PCCP·Jan KrohnRuth Signorell
Jan 3, 2019·The Journal of Chemical Physics·Martina LippeRuth Signorell
Oct 24, 2019·The Journal of Chemical Physics·Kehinde E Ogunronbi, Barbara E Wyslouzil
Aug 12, 2017·The Journal of Chemical Physics·Barbara E Wyslouzil, Judith Wölk
Aug 12, 2017·The Journal of Chemical Physics·Jorge J FerreiroRuth Signorell
Jun 23, 2020·Physical Chemistry Chemical Physics : PCCP·Arnaud DelcorteKonstantin Moshkunov
Jan 27, 2021·Physical Chemistry Chemical Physics : PCCP·Daniel BeckerThomas Zeuch
Feb 2, 2021·Science Advances·Chenxi LiRuth Signorell
May 11, 2021·The Journal of Physical Chemistry Letters·Kayane K DingilianBarbara E Wyslouzil
Mar 6, 2019·The Journal of Physical Chemistry. a·Martina LippeRuth Signorell

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