Dokumente Fakultät für Chemie (inkl. GAUSS) nach Titel
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Oberflächenchemie an Silicium-Nanopartikeln
(2009-02-05)Two nanocrystalline silicon powders from industrial production that differ in their primary particle size (50-300 nm and 5-10 nm), were used for surface modifications on the nanometer scale. ... -
Oberflächenstrukturen modulierter Systeme - Darstellung von regelmäßig angeordneten, polaren Nanodomänen mittels Piezoresponse Force Microscopy
(2020-07-23)Piezo force microscopy has been used to visualize nanoscaled surface charge density waves in a modulated ferroelectric system for the first time. Those self-organized structures are found in incommensurate systems close ... -
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 ... -
Oligomer modulator anle138b and related compounds in neurodegeneration and beyond
(2020-12-10)Neurodegenerative diseases including Alzheimer’s disease, Parkinson’s disease, Creutzfeldt-Jakob disease are characterized by a progressive deterioration of brain function as a result of a gradual loss of nerve cells. Due ... -
On the dynamics of H atom scattering from metal surfaces
(2022-04-26)When a hydrogen atom collides with a surface it may either scatter or stick to the surface, depending on the energy loss the particle experiences during collision. It is established that non-adiabatic effects in form of ... -
One-pot, Two-step Queuing Cascades Involving a Heck Coupling, π-Allylpalladium Trapping and Diels-Alder Reaction
(2006-01-23)In the first part of this study, palladium catalyzed reactions of mono-substituted bicyclopropylidenes (66B E) with iodobenzene (67) in the presence of dienophiles 68a b have been performed. ... -
Optical Fusion Assay Based on Membrane-Coated Beads in a 2D Assembly
(2014-04-25)A novel assay of membrane fusion is established based on membrane-coated beads in a 2D assembly. This assay allows identifying the different stages of the fusion process. Membrane fusion driven by heterodimeric coiled coil ... -
Optimising His-tags for purification and phasing
(2011-07-26)Rekombinant expremierte Proteine können mit einer zusätzliche Aminosäuresequenz am C- und/oder N-Terminus, dem Protein-Tag, hergestellt werden. Bei einer bestimmten Gruppe dieser Tags erlaubt ... -
Organisation and Recognition of Artificial Transmembrane Peptides
(2016-11-15)A various number of cellular key functions such as signalling and transport are mediated by membrane proteins, which are either adhesively bound to the membrane surface or exhibit transmembrane domains. Many transmembrane ... -
Organoferrate als Intermediate in Eisen-Katalysierten Kreuzkupplungsreaktionen
(2019-05-24)In the context of this work a combination of ESI mass spectrometry, mößbauer spectroscopy and electrical conductometry was used to identify and characterize a large number of organoferrates. These anionic species, which ... -
Organokatalyse von Diels-Alder-Reaktionen durch neutrale Wasserstoffbrückendonoren in organischen und wässrigen Lösungsmitteln
(2001-07-30)The catalytic activity of substituted thioureas in a series of Diels-Alder reactions and 1,3-dipolar cycloadditions was studied. The kinetic data reveal that the observed relative rate ... -
Orientation-dependent energy transfer in gas-surface collisions: Scattering of vibrationally excited nitric oxide from Au(111)
(2015-07-14)The work in my thesis is a contribution to the field of chemical dynamics at surfaces. In this field we seek to develop a detailed microscopic understanding of chemical events taking place on surfaces. Progress in ...
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Oxygen Bridged Metal Systems: Heterometallic Compounds Containing Main Group Metal, Transtion Metal and f-Elements
(2011-10-31)This dissertation lays emphasis mainly on the synthesis and structural studies of oxygen bridged heterobi- and trimetallic complexes containing main group metal, transition metal and ... -
Palladium(II)-katalysierte Domino-Reaktionen zur enantioselektiven Synthese von Confluentin, Daurichromen- und Rhododaurichromansäure Untersuchungen zur Synthese von Aglaroxin A
(2011-04-28)This thesis is about Palladium(II) catalysed Domino Reactions for the enantioselective Synthesis of Confluentin, Daurichromenic and Rhododaurichromanic acid. These substances were isolated ... -
Palladium-Catalyzed Oligocyclizations of Some 2-Bromotetradec-1-ene-7,13-diynes Under Heck Reaction Conditions
(2003-12-16)Synthesis of different substituted 2-bromotetradec-1-ene-7,13-diyne precursors can be easily achieved by using 1,7-octadiyne. The cyclization outcome of these precursors depends on the type ... -
Palladium-katalysierte Domino-Reaktionen zum Aufbau bi- und tricyclischer Systeme
(2001-08-30)Domino-processes between palladium-catalyzed cross-coupling reactions - Heck-reaction and Enyne-Cycloisomerization - followed by Diels-Alder-reactions have been studied. The ... -
Palladium-katalysierte Kreuzkupplungen zu 1,2-Dialkenylcycloalkenen: Ausgangsstoffe zur Synthese vielfältiger cyclischer Kohlenstoffgerüste
(2001-10-24)Palladium-catalyzed coupling reactions of 1,2-dibromocycloalkenes with styrene and acrylates afforded 1,6-diphenyl- and 1,6-bisalkoxycarbonyl-substituted (E,Z,E)-1,3,5-hexatrienes ... -
Paramagnetisch markierte Oligonukleotide
(2009-09-11)Two methods to obtain paramagnetically tagged oligonucleotides are described. To get a biomolecule with a paramagnetic center a radical or metal moiety has to be introduced. This was done ...