Our research aims at a detailed understanding of chemical processes at the molecular level. We believe that the thus gained mechanistic insight is not only of interest in its own right, but in the long term will provide the best way for reagent and catalyst optimization as well as the development of new synthetic methods and materials
Much of our work involves organic/organometallic synthesis to prepare samples of interest, which we then analyze by various analytical methods, such as NMR spectroscopy, UV/vis spectroscopy, and electrical conductivity measurements. As a particularly useful tool to probe ionic intermediates, we employ electrospray ionization (ESI) mass spectrometry. With our optimized protocols, we can even detect highly sensitive and elusive species. To improve our experiments further, we also seek a better understanding of the ESI process. In this regard, we study the relative ESI activities of different analytes. Additionally, we investigate the effective internal energy of analyte ions by means of thermometer ions. Moreover, to study the reactivity of mass-selected ionic intermediates in the gas phase, we conduct collision-induced dissociation and ion-molecule reaction experiments by the use of a home-built substrate-inlet system. Thus, we achieve ultimate control over the probed systems and can assess how single bound solvent molecules, different ligands, and different aggregation states affect the reactivity at the molecular level. In addition, ion-mobility measurements and spectroscopic studies (with collaboration partners) help us to obtain structural information. For a detailed interpretation of the experimental results, we also use theoretical methods (quantum-chemical and statistical rate-theory calculations).
Fields of InterestOrganometallics and Catalysis
Non-Covalently Bound Complexes of Biomolecules
Novel Electrolyte Materials
Currently, we focus on six projects in our group. For further details, see the following descriptions of research projects.