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Matter-wave interference and deflection of tripeptides decorated with fluorinated alkyl chains

Schätti, J.; Köhler, V.; Mayor, M.; Fein, Y. Y.; Geyer, P.; Mairhofer, L.; Gerlich, S.; Arndt, M.

Abstract (englisch):
Studies of neutral biomolecules in the gas phase allow for the study of molecular properties in the absence of solvent and charge effects, thus complementing spectroscopic and analytical methods in solution or in ion traps. Some properties, such as the static electronic susceptibility, are best accessed in experiments that act on the motion of the neutral molecules in an electric field. Here, we screen seven peptides for their thermal stability and electron impact ionizability. We identify two tripeptides as sufficiently volatile and thermostable to be evaporated and interfered in the long‐baseline universal matter‐wave interferometer. Monitoring the deflection of the interferometric molecular nanopattern in a tailored external electric field allows us to measure the static molecular susceptibility of Ala–Trp–Ala and Ala–Ala–Trp bearing fluorinated alkyl chains at C‐ and N‐termini.

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Verlagsausgabe §
DOI: 10.5445/IR/1000119617
Veröffentlicht am 20.05.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 0030-493X, 1076-5174, 1096-9888, 2376-3884
KITopen-ID: 1000119617
HGF-Programm 43.21.04 (POF III, LK 01)
Molecular Engineering
Erschienen in Journal of mass spectrometry
Band 55
Heft 6
Seiten Article No.e4514
Vorab online veröffentlicht am 17.03.2020
Nachgewiesen in Scopus
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