Dokumente Fakultät für Chemie (inkl. GAUSS) nach Titel
Anzeige 201-220 von 702
-
Fabrication of Polymer-Metal Nanohybrids - Routes Towards Functional Materials
(2021-11-15)Within this thesis various nanohybrid systems constructed from metal nanocrystal cores and polymer shells were specifically tailored towards distinct practical applications. The first part of this work addresses the ... -
Fatty acid oxidizing enzymes in Lobosphaera incisa
(2018-04-23)Green microalgae are a model in biotechnology because of their capacity to accumulate neutral lipids, as part of a general lipid remodeling mechanism under stress. The species L. incisa is of special interest for its unique ... -
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) ... -
Femtosekunden Photodetachment- Photoelektronenspektroskopie an isolierten und massenselektierten Halogen-Edelgas-Clustern
(2010-11-22)This thesis is dedicated to the study of the energetics and dynamics of the solvation process in van-der-Waals bonded halogen rare gas clusters. To this end a high repetitive electron-/mass ... -
Femtosekunden Photolyse von Diiodmethan in überkritischen Fluiden: Konkurrenz zwischen Photodissoziation und Photoisomerisierung
(2004-01-14)This thesis deals with effects that a dense fluid environment may have on the dynamics of elementary reactions such as competition between reactant escape from a solvent cage and in-cage ... -
Femtosekunden Pump-Probe-Absorptionsspektroskopie zur Untersuchung der intramolekularen Dynamik von ß -Apo-Carotinsäuren und von Patman in verschiedenen Lösungsmitteln
(2012-01-31)Transient absorption spectroscopy was applied in order to record time resolved spectral profiles and time constants of the photokinetics of n'-β-apo-n'-carotenoic acids (n = 10, 12, 14) and ... -
Femtosekunden-Photoelektronenspektroskopie mit extrem ultravioletter Strahlung an Flüssigkeitsgrenzflächen
(2007-11-12)In this work time-resolved photoelectron spectroscopy with femtosecond laser pulses in the extrem ultraviolett has been applied to liquid interfaces for the first time. Thereby laser induced ... -
Femtosekunden-Spektroskopie zur Protontransfer-Dynamik im elektronisch angeregten Zustand von 1.8-Dihydroxy-9.10-Anthrachinon
(2003-10-17)This thesis investigates the connection between the non-radiative relaxation dynamics of 1.8-dihydroxy-9.10-anthraquinone (1.8-DHAQ) and the intramolecular proton-transfer in the first ... -
Final Elucidation of the Absolute Configuration of Hormaomycin - Total Synthesis of Hormaomycin and Analogs
(2004-09-14)This work has been focused on the synthesis of hormaomycin and analogs, and prior to that, on the assignment of the absolute structure of unusual amino acids, which comprise hormaomycin, ... -
Fixing the Conformation in Helicenes: Enantioselective Synthesis of [5]Helicenes and Synthesis of In-Fjord Substituted Expanded Helicenes
(2022-12-16)By combining the 3,3’-disubstituted BINOL-derived backbone and different cationic rests, a new family of α-cationic chiral phosphonites has been synthesized. Coordination to Au(I) afforded the corresponding precatalysts. ... -
Fluorescence based studies on neuronal processes
(2015-07-22)Synaptotagmin-1 is a calcium dependent trigger of the SNARE-fusion machinery that ultimately upon stimulation executes signal transmission between neurons. However, the actual mechanistic function and the role of ... -
Fluorescence Studies of Amine-substituted Azaanthracene Metal Complexes
(2016-07-20)Former investigations of the Stalke group focussed on the hydrocarbon fluorophore anthracene. In this thesis, two representatives of the heteroaromatic congener azaanthracene with different fluorescence properties and ... -
Fluorescent and Photochromic Fluorescent Compounds for Applications in Optical Nanoscopy
(2009-11-05)New 1,2-bis(3-thienyl)perfluorocyclopentenes, which can be reversibly switched between colorless and colored forms using near-UV (375 nm) or visible light, were synthesized, and their ... -
Fluorescent Dyes and Quenchers with Rigid Linkers
(2017-03-16)Electronic energy transfer (EET) between chromophores is of fundamental importance for many natural processes and technical applications. However, common models fall short in fully describing the process, especially in ... -
Fluorescent Dyes with Large Stokes Shifts of 80−200 nm for Optical Microscopy and Nanoscopy
(2015-07-02)Bright and photostable fluorescent dyes with large Stokes shift are rare, though they are indispensable in optical microscopy, biology and chemistry. The rapid progress in super-resolution microscopy based on stimulated ... -
Fluoreszente Sonden mit gesteigerter Signalintensität für die Lebendzell-Mikroskopie
(2021-09-02)In the past decades key findings in light microscopy has extended the possibilities of optical imaging methods. Imaging of living cells with a detailed visualization of proteins, structures and organelles has become one ... -
Fluoreszenzchemosensoren auf Basis des Anthracen-Fluorophors
(2010-07-22)Anthracene has an extended π-electron system. Beside the strong fluorescence it also yields high fluorescence efficiency. These facts promote anthracene to a very interesting research target ... -
Fluorfunktionelle 1,3-Diaza-2-sila-cyclopentene -Synthese, Reaktionen und Kristallstrukturen
(2009-02-09)The synthesis of new, unknown aluminium, gallium and amino-substituted diaza-silacyclopentenes-compounds is the point of interests of this work. Lithiumsalts react like iminosilenes with elment-compounds of the 13. main-group. ... -
From Copper to Gold: Identification and Characterization of Coinage-Metal Ate Complexes by ESI Mass Spectrometry and Gas-Phase Fragmentation Experiments
(2020-01-09)Organocuprates are important reagents with numerous applications in preparative organic chemistry, which has led to extensive investigations regarding their molecular composition. However, while lithium organocuprates have ... -
From diatomic to polyatomic quantum-state-resolved molecule-surface scattering
(2017-10-10)In this work, molecule-surface scattering is studied for the diatomic molecule nitric oxide (NO) and the polyatomic molecule formaldehyde. Following the approach of “molecular surface science”, elementary steps in the ...