Dokumente Fakultät für Chemie (inkl. GAUSS) nach Gutachter "Stalke, Dietmar Prof. Dr."
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Electrochemical C–H Activation by Ruthenium and Palladium Catalysis
(2024-04-19)The emergence of direct functionalizations of C−H bonds offers efficient alternatives to traditional cross-coupling reactions, thereby saving time and costs. However, oxidative C−H activation often depends on stoichiometric ... -
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 ... -
Application of Gold Catalysis in the Synthesis of Seven-Membered Ring Systems
(2024-01-08)A novel synthetic strategy for the synthesis of seven-membered ring systems with and without heteroatoms applying an Au(I)-based catalyst was successfully established. The selectivity in the cyclization of the corresponding ... -
Plasmagestützte Syntheseverfahren zur Erzeugung von Parylene-Metall-Multilayersystemen
(2023-10-27)This dissertation comprises the investigation of new synthesis possibilities of Parylene-metal multilayer systems with all process steps united in a single Parylene coating device. For this purpose, the metal layer component ... -
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 ... -
Barriers of Protonation Reactions of Organometallics
(2023-09-20)Protonation reactions are entirely understood for simple organic and inorganic molecules and there are elaborated concepts to describe such acid-base reactions in both the solution and gas phase. For organometallic species, ... -
Method Development for Benchmarking Key Interactions in Quantum Crystallography
(2023-03-23)The thesis presents different approaches to obtain benchmarkable data from (quantum) crystallographic methods. In a first approach, it tackled structure - fluorescence relationships in anthracene derivates with a focus on ... -
Electrochemical Benzylic C−H Fluorination and 4d-Metallaelectro-Catalyzed C−H and C−C Functionalizations
(2023-03-15)Direct functionalizations of C−H and C−C bonds have emerged as time-saving and cost-effective alternatives to established cross-coupling reactions. However, oxidative coupling variants require stoichiometric amounts of ... -
Charge-density analyses of metal complexes of the bis(benzoxazol-2-yl)methanide ligand
(2023-03-03)In this thesis, several metal complexes of the bis(4-CH3-benzoxazol-2-yl)mehanide (MeBOX) ligand were investigated in charge density studies based on high-resolution single-crystal X-ray diffraction experiments. The aluminium ... -
Bis(benzoxazol-2-yl)methanides in main group organometallic syntheses and enquiry-based education
(2023-02-27)The dissertation entitled “Bis(benzoxazol-2-yl)methanides in main group organometallic syntheses and enquiry based education” constitutes three main chapters. Each chapter concerns a different project the author worked on ... -
Transition Metal- and Electro-Catalyzed C-H and B-H Activation for the Efficient Synthesis of Carborane Derivatives
(2023-01-12)The emergence and rapid development of transition metal-and electro-catalyzed C-H activation has proven to be a powerful tool in the assembly of complex molecular structures. in addition, the selective synthesis of carborane ... -
Novel Near-Infrared-Emitting (Nano)Materials for Bioimaging
(2022-12-16)The scientific interest around in vivo biomedical imaging has strongly increased in recent years due to its benefits compared to other diagnostic tools. Fluorophores that emit in the near-infrared region of the electromagnetic ... -
Synthesis and Magnetic Properties of Polyimidosulfur- and Bis(benzoxazolyl)methanide-ligated Complexes
(2022-09-30)The properties of magnetic molecules are promising centerpieces in various fields of research directed toward novel technologies, ranging from quantum computing, high-density data storage systems, and medical imaging ... -
C–H Activation via Iridium and Rhodium Electrocatalysis and Undirected Electrochemical Fluorination
(2022-06-24)In past decades, transition metal-catalyzed C–H activation has emerged as an increasingly viable toolbox for the step- and atom economic formation of C–C and C–Het bonds. However, oxidative C–H transformations heavily rely ... -
Polyimido Sulfur Compounds as Promising Ligands in Molecular Magnets
(2022-04-08)Single-molecule magnets (SMMs) are molecules that exhibit slow relaxation of the magnetization after the removal of an applied external field. Therefore, they may find potential application in high density information ... -
Searching for more π-acceptor phosphines: From α-pyridiniophosphines to α-cationic phospholes
(2022-04-07)This thesis focuses on two classes of cationic phosphines. In the first part, the previously developed cationic pyridinio-phosphines were investigated further in respect to their coordination chemistry towards Ir and their ... -
Late-Stage Peptide Functionalization by Transition Metal-free and Palladium-Catalyzed C–H Arylations
(2022-03-31)The focus of this thesis was set on the late-stage modification of peptides through transition metal-free and palladium-catalyzed C–H arylations. At first, the scope of the transition metal-free C2-arylation of the ... -
Bioinspired Iron-Carbene Models of Heme and Non-Heme Enzymes: Electronic Structure and HAA Reactivity
(2022-03-15)The fast depletion of non-renewable energy sources requires modern chemists to develop new industrial processes that are more efficient and environmentally sustainable. In this framework, the functionalization (e.g. ... -
Structure-Property Correlations in Luminescent Anthracene Derivatives
(2022-02-17)This thesis aims to investigate the structure-property relationship of luminescent Anthracene derivatives. For this purpose, the Anthracene fluorophore was functionalized in various positions and with different substituents. ... -
Earth-Abundant Transition Metal-Catalyzed Electro-Reductive Cross-Electrophile Coupling Reactions and C–H Activation by Cobaltaelectro-Catalysis
(2021-12-13)Within the last decades, immense progresses have been made with transition metal-catalyzed cross-electrophile reactions and C–H activation reactions. The merger of electrocatalysis with such powerful methods have further ...