Stability of high-mass molecular libraries

Autor(en)

Ugur Sezer, Philipp Schmid, Lukas Felix, Marcel Mayor, Markus Arndt

Abstrakt

Molecular beam techniques are a key to many experiments in physical chemistry and quantum optics. In particular, advanced matter-wave experiments with high-mass molecules profit from the availability of slow, neutral and mass-selected molecular beams that are sufficiently stable to remain intact during laser heating and photoionization mass spectrometry. We present experiments on the photostability with molecular libraries of tailored oligoporphyrins with masses up to 25 000 Da. We compare two fluoroalkylsulfanyl-functionalized libraries based on two different molecular cores that offer the same number of anchor points for functionalization but differ in their geometry and electronic properties. A pentaporphyrin core stabilizes a library of chemically well-defined molecules with more than 1600 atoms. They can be neutrally desorbed with velocities as low as 20 m/s and efficiently analyzed in photoionization mass spectrometry.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Universität Basel, Karlsruher Institut für Technologie

Journal

Journal of Mass Spectrometry

Band

50

Seiten

235-239

Anzahl der Seiten

5

ISSN

1076-5174

DOI

https://doi.org/10.1002/jms.3526

Publikationsdatum

01-2015

Peer-reviewed

Ja

ÖFOS 2012

104015 Organische Chemie, 103026 Quantenoptik, 104017 Physikalische Chemie, 103006 Chemische Physik

Schlagwörter

ASJC Scopus Sachgebiete

Spectroscopy

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/80292548-f804-47b6-a84e-54a856d410ed