Stability of high-mass molecular libraries
- Author(s)
- Ugur Sezer, Philipp Schmid, Lukas Felix, Marcel Mayor, Markus Arndt
- Abstract
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(s)
- Quantum Optics, Quantum Nanophysics and Quantum Information
- External organisation(s)
- Universität Basel, Karlsruher Institut für Technologie
- Journal
- Journal of Mass Spectrometry
- Volume
- 50
- Pages
- 235-239
- No. of pages
- 5
- ISSN
- 1076-5174
- DOI
- https://doi.org/10.1002/jms.3526
- Publication date
- 01-2015
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 104015 Organic chemistry, 103026 Quantum optics, 104017 Physical chemistry, 103006 Chemical physics
- Keywords
- ASJC Scopus subject areas
- Spectroscopy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/80292548-f804-47b6-a84e-54a856d410ed