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Sezer U, Schmid P, Felix L, et al. Stability of high-mass molecular libraries: the role of the oligoporphyrin core. J Mass Spectrom. 2015;50(1):235-9doi: 10.1002/jms.3526.
Sezer, U., Schmid, P., Felix, L., Mayor, M., & Arndt, M. (2015). Stability of high-mass molecular libraries: the role of the oligoporphyrin core. Journal of mass spectrometry : JMS, 50(1), 235-9. https://doi.org/10.1002/jms.3526
Sezer, Uĝur, et al. "Stability of high-mass molecular libraries: the role of the oligoporphyrin core." Journal of mass spectrometry : JMS vol. 50,1 (2015): 235-9. doi: https://doi.org/10.1002/jms.3526
Sezer U, Schmid P, Felix L, Mayor M, Arndt M. Stability of high-mass molecular libraries: the role of the oligoporphyrin core. J Mass Spectrom. 2015 Jan;50(1):235-9. doi: 10.1002/jms.3526. PMID: 25601698; PMCID: PMC4322477.
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J Mass Spectrom. 2015 Jan;50(1):235-9. doi: 10.1002/jms.3526.

Stability of high-mass molecular libraries: the role of the oligoporphyrin core.

Journal of mass spectrometry : JMS

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

Affiliations

  1. University of Vienna, Faculty of Physics, VCQ and QuNaBioS, Boltzmanngasse 5, 1090, Vienna, Austria.

PMID: 25601698 PMCID: PMC4322477 DOI: 10.1002/jms.3526

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.

© 2015 The Authors. Journal of Mass Spectrometry published by John Wiley & Sons Ltd.

Keywords: TOF-MS; laser desorption; macromolecular beams; molecular libraries; photoionization

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