Browsing Fakultät für Chemie (inkl. GAUSS) by Referee "Obenchain, Daniel Prof. Dr."
Now showing items 1-15 of 15
-
Investigation of Surface Dynamics on Oxidized Metal Surfaces Using Ion Imaging Techniques
(2025-11-12)Heterogeneous catalysis plays a pivotal role in modern life, with applications ranging from the Haber-Bosch process over ethylene epoxidation to exhaust conversion in modern three-way catalysts in automobiles. While these ... -
Sub-ns H Atom Pulses: Challenges in Pulse Duration Measurements and Their Use in Surface Scattering Experiments
(2025-08-29)Molecular and atomic beams are essential tools to study fundamental interactions and surface dynamics. Particularly in physics, chemistry, and biology these beams are widely used to study the interaction of neutral particles ... -
Exploring Transient Dialumene and Diazido-Dialane: Low Oxidation State Aluminium Chemistry based on a Hybrid Ligand
(2025-06-12)This thesis focuses on the exploration and development of the hybrid NacNac-Box-akin ligand, DippNac-Indole (DNI), and its application in stabilizing low oxidation state aluminium complexes. The study is structured to ... -
Investigation of Nuclear Hyperfine Coupling in H2 Heterodimers Using Rotational Spectroscopy
(2025-05-20)Rotational spectroscopy of gas phase compounds is a powerful technique for structure determination through the unique moments of inertia of a molecular system. It is sensitive angular momentum coupling; therefore, complicated ... -
Synthesis of Pyrrolo[1,2-c]pyrimidine-1-ylidenes: Coordination Chemistry and Application as Ancillary Ligands for Metal Catalysis
(2025-03-20)N-heterocyclic carbenes (NHCs) represent an important class of ancillary ligands for transition metal catalysis due to their strong binding character and generally simple syntheses procedures. One important feature of these ... -
Identification and Characterization of Intermediates in Transmetalation Reactions from Boron to Lithium and Copper
(2025-02-14)Transmetalation is a crucial elementary step in cross-coupling reactions. In this context, boron nucleophiles are especially popular and versatile, however, the fundamental details of transmetalation reactions involving ... -
Evaluation of a new VUV-FEL surface science end station using atomic beam surface scattering and velocity-resolved surface reaction dynamics
(2024-12-03)Abstract: 1. Atomic oxygen scattering from HOPG It has been unequivocally established that the electronic spin of a molecule significantly influences reactivity in gas phase reactions. However, the presence of clear ... -
Manganese and Ruthenium Catalysis for Sustainable C–H Functionalizations and Polymer Synthesis
(2024-10-28)The ever-growing scarcity of resources, energy crises, and environmental pollution demand the development of sustainable chemical processes for C–C bond formations and efficient post-consumer plastic waste recycling. While ... -
Mechanistic Studies on flat and stepped Palladium Single Crystal Surfaces: Experimental Evidence of Reaction Intermediates for the Decomposition of Formic Acid and Oxidation of Ammonia
(2024-10-04)In this work, experimental and theoretical investigations of formic acid desorption, decomposition and ammonia oxidation on single crystal palladium surfaces are presented. The formic acid system is investigated using a ... -
Investigation of vibrational dynamics in alcohol-acid complexes and of monohydrates via FTIR and Raman spectroscopy
(2024-08-27)The vibrational dynamics of complexes between carboxylic acids with alcohols is investigated using Raman and FTIR jet spectroscopy combined with quantum chemical calculations. These complexes bind via intermolecular ... -
Towards an Effective Synthesis of Functionalized Heptacyclo[6.6.0.02,6.03,13.04,11.05,9.010,14]tetradecane
(2024-03-14)A reassessment of the Rh-catalyzed dimerization of norbornadiene to generate heptacyclo[6.6.0.02,6.03,13.04,11.05,9.010,14]tetradecane (HCTD), a carbocyclic cage compound, has been conducted introducing novel π-acceptor ... -
Of Resonances and Radicals – Hydrate Studies for Benchmarking
(2024-02-22)Theory experiment benchmarks are a valuable tool to improve quantum numerical methods. To provide experimental data suitable for benchmarking, this work focuses on the investigation of jet cooled hydrate clusters using ... -
Inelastic Hydrogen Atom Scattering from Semiconductor Surfaces
(2023-12-11)The adiabatic approximation is widely applied to describe interactions of atoms and molecules with solid surfaces. It assumes that the electronic system stays in the lowest-energy ground state during the interaction and ... -
Weiterentwicklung diffusionsspektroskopischer NMR-Methoden für metallorganische Schlüsselverbindungen
(2023-10-02)This work has extended the development and application of NMR diffusion spectroscopic techniques for the determination of the molecular weight of compounds in solution. In the process, methylcyclohexane-d14 was added to ... -
Diols under Investigation: Benchmarking their Monomers, Dimers and Chirality Recognition
(2022-12-14)A large variety of different 1-2,-diols are investigated with regards to their monomers, dimers and chirality recognition. Jet-Raman and microwave spectroscopy are used to spectrally characterise the systems. The results ...