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Marianne Engeser
© M. Engeser
Priv. Doz. Dr. Marianne Engeser

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Affiliations
  • Kekulé-Institut für Organische Chemie und Biochemie
  • Faculty of Mathematics and Natural Sciences
Research topics
  • Mass Spectrometry
  • Detection of reactive Intermediates
  • Reaction Mechanisms
  • Structure Elucidation
My research is in the field of supramolecular chemistry and the elucidation of reaction mechanisms using a combination of chemical synthesis, sophisticated mass spectrometric methods and electrochemistry. Modern mass spectrometry allows the targeted study of chemical properties and the reactivity of individual, mass-selected species under precisely defined conditions. Soft electrospray ionization allows access to weakly bound supramolecular aggregates accessible to this method which provides extremely valuable insights into bonding and reactivity. We currently focus on mechanistic questions in supramolecular chemistry, gold catalysis and organocatalysis, with a special interest in the direct detection and mass spectrometric characterization of reactive intermediates.
Selected publications

Willms JA, Vidic J, Barthelmes J, Steinmetz V, Bredow T, Maître P, Engeser M (2019) Probing the gas-phase structure of charge-tagged intermediates of a proline catalyzed aldol reaction – Vibrational spectroscopy distinguishes oxazolidinone from enamine species. Phys. Chem. Chem. Phys. 21:2578 - 2586.

Willms JA, Gleich H, Schrempp M, Menche D, Engeser M (2018) Investigations of the copper catalyzed oxidative cross-coupling of THIQs with diethylzinc with a combination of mass spectrometric and electrochemical methods. Chem. Eur. J. 24:2663-2668.

Lorenz Y, Gutiérrez A, Ferrer M, Engeser M (2018) Bond dissociation energies of metallosupramolecular building blocks: Insight from fragmentation of selectively self-assembled heterometallic metallo-supramolecular aggregates. Inorg. Chem. 57:7346-7354.

https://www.chemie.uni-bonn.de/oc/forschung/arbeitsgruppen/ak_en-en/publications/Publications?set_language=en

Marianne Engeser
© M. Engeser
Priv. Doz. Dr. Marianne Engeser

Website

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