Browsing Fakultät für Chemie (inkl. GAUSS) by Advisor & Referee "Meyer, Franc Prof. Dr."
Now showing items 1-20 of 121
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On the chemistry of sulfur: Development of NOS bridge model systems and Stereoretentive 2,3-bis(trifluoromethyl)cyclopropanation of heteroarenes via sulfonium salts
(2025-02-05)This thesis presents research conducted across two distinct projects in sulfur chemistry. The first project focused on the synthesis of model systems based on biphenyl, xanthene, and triazamacrocyclic scaffolds to investigate ... -
Reductive Small Molecule Transformations with Pyrazolate-Based Bimetallic Complexes
(2025-01-23)The activation of small molecules (NO, O2, CO, CO2, N2, etc.) is important in a multitude of fields such as biology, medicine and industrial catalysis. Many synthetic catalysts were inspired by the active sites of ... -
3d-Metall-Käfig-Komplexe als Modelle für aktive Zentren von nicht-Häm Proteinen
(2024-10-22)This thesis presents a broad study on a new ligand system, specially designed for the mimicry of the quasi-chelating coordination by amino acid side chain residues in enzymatic pockets. The ligand system is based on an ... -
Selectivity controlling factors in the reductive elimination of coinage metal complexes
(2024-07-12)In this thesis, reductive elimination reactions and their selectivity-determining factors were investigated using ESI and tandem-MS. To this matter, square-planar coordinated coinage- metalate complexes bearing ... -
Femtosecond spectroscopy of charge-transfer dynamics in self-assembled Pd(II) based donor-acceptor/host-guest cages and heterobinuclear alkyne-bridged W(II)-Ru(II) and W(II)-Ir(III) complexes
(2024-04-11)Using femtosecond UV/vis-pump-UV/vis-probe and -midIR-probe absorption spectroscopy the charge-transfer dynamics of self-assembling donor-acceptor Pd(II) coordination cages and heterobinuclear alkyne-bridged W(II)-Ru(II) ... -
Exploiting the Disulfide/Thiol Switch for Photoinduced Proton-Coupled Multielectron Transfer Reactivity
(2024-03-27)Energy storage and efficient release has become a pivotal issue for our society relying progressively on renewable energy sources. The dichotomy between harvesting the sun’s energy in daylight hours, and requiring it the ... -
Sustainable Ruthenium- and Rhodium-Catalyzed C−H Activations with Photochemistry and Electrochemistry
(2024-03-18)Cross-coupling chemistry stands out as a fundamental tool in synthetic organic chemistry for forging C‒C and C‒Het bonds. However, the necessity for substrate prefunctionalization imposes significant sustainability challenges ... -
Chemical Synthesis of Alpha-Synuclein Proteins via Solid-Phase Peptide Synthesis and Native Chemical Ligation
(2024-03-05)Parts of this chapter have already been published and have been adapted from the original publication: L. M. Gatzemeier, F. Meyer, U. Diederichsen, T. F. Outeiro, Chemical Synthesis of Alpha-Synuclein Proteins via Solid-Phase ... -
Tailoring and Exploiting Magnetic Anisotropy in Low Coordinate 3d Transition Metal Complexes.
(2023-07-04)Among 3d transition metal based SMMs, Co(II) SMMs is the most-studied group owning to the high-spin electronic configuration (CoII, d7) which yields second-order spin-orbit coupling or even first-order spin-orbit coupling. ... -
Bioinspired dioxygen activation with copper complexes supported by Bis(oxazoline) and Bis(benzimidazole) ligands
(2023-06-20)Many synthetic complexes modeling the oxy form of the tyrosinase have been developed and have shown a preference for either the side-on peroxodicopper(II) (P) or the bis(-oxo)dicopper(III) (O) core depending on the ... -
New Synthetic Analogues for Biological Fe/S Clusters
(2023-03-20)Iron-sulfur (Fe/S) clusters are omnipresent and are essential components in virtually all life forms due to their versatile structures and functions. Biological systems extensively employ Fe/S clusters, especially with ... -
Tetradentate NHC/Thiolato and NHC/Alcoholato Hybrid Scaffolds – A Nickel(II) Complex as Bidentate Metalloligand in 3d Transition Metal Chemistry
(2023-03-08)Research and development of N-heterocyclic carbene (NHC)-based ligands has flourished in recent decades. Herein, The new bis-imidazolinium proligands were designed and synthesized to serve as tetradentate bis(NHC)-dithiolato ... -
Bioinspired Dinuclear Copper Complexes for Oxygen Activation
(2022-12-06)This thesis explores new bioinspired bimetallic copper complexes for the activation of dioxygen. Therefore, two novel TACN/pyrazolate ligand scaffolds with reduced steric hindrance were introduced and successfully established. ... -
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 ... -
Electrochemical Dinitrogen Splitting and Nitride Transfer to Nitric Oxide with Rhenium Pincer Complexes
(2022-04-26)The Haber-Bosch process for the synthesis of ammonia from nitrogen and hydrogen consumes large amounts of energy and additionally relies on fossil feedstocks for the production of hydrogen. Alternative approaches for the ... -
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 ... -
Activation and transformation of small molecules at a bimetallic β-diketiminato nickel platform
(2022-03-25)This dissertation focuses on the activation and transformation of small molecules by a dinuclear nickel platform. A series of nickel-complexes based on a binucleating bis(tridentate) ligand that consists of two ß-diketiminato ... -
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. ... -
Hyperpolarisierte Kontrastmittel in der Magnetresonanz
(2022-02-24)Nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI) are powerful techniques with applications ranging from chemical analysis to medical diagnostics. However, they are limited by their low sensitivity which ... -
Metal-Mediated Coordination Cages: Endohedral Functionalization and Oligonucleotide Embedding
(2022-02-17)Supramolecular structures have become a popular motif in order to design higher order constructs from smaller organic building blocks, which are hold together by non-covalent bonds, such as hydrogen bonds, ion-ion, ion-dipole ...