Dokumente Fakultät für Chemie (inkl. GAUSS) nach Gutachter "Troe, Jürgen Prof. Dr."
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Photodissoziation von Polyhalogenmethanen in Fluiden: Kurzzeitdynamik und Mechanismen
(2008-09-19)This work investigates the molecular mechanisms of photoinduced dynamics and isomerization of polyhalomethanes in fluids by femtosecond pump-probe absorption spectroscopy. For this purpose ... -
Photolytischer Käfigeffekt von Dihalomethanen in überkritischen Lösungsmitteln
(2005-12-05)This thesis deals with the effects that a dense environment may have on chemical reactions. For this purpose a seemingly simple reaction was chosen: the photodissociation of diiodomethane ... -
Photon-Echo-Spektroskopie zur Dynamik der Solvatation in Wasser und an Lipidmembran-Wasser-Grenzschichten
(2002-07-02)The thesis focuses on the molecular mechanisms of ultrafast solvation at the interface of synthetic phospholipid-membranes. For the first time, photon-echo spectroscopy is used as a tool ... -
Polymer embedding for ultrathin slicing and optical nanoscopy of thick fluorescent samples
(2010-01-05)Optical far-field methods are frequently recruited in modern life sciences, especially because one can benefit from various kinds of specific labeling. This was forced even more when several ... -
Pressure and temperature dependence of recombination reactions of benzyl-type radicals
(2009-02-18)The combination reactions p-F-C6H4CH2 + p-F-C6H4CH2 (+M) → C14H12F2 +M), p-CH3-C6H4CH2 + p-CH3-C6H4CH2 (+M) → C16H18 (+M) and C6H5CH2 + C6H5CH2 (+M) → C14H14 (+M) have been investigated ... -
Probing vesicle dynamics within small synapses
(2006-01-27)Sustained synaptic transmission at the hippocampal synapse (Ø∼1 μm) requires continuous exocytosis and subsequent endocytosis of synaptic vesicles (Ø∼35 nm). The kinetics of this process ... -
Pump-Superkontinuum-Probe-Spektroskopie von Carotinoiden in organischen Lösungsmitteln
(2011-03-11)In the course of this PhD project, a new experiment for pump-supercontinuum-probe spectroscopy has been set up, tested, optimized and used for a number of studies on carotenoids in organic ... -
S2 State Photodissociation of Diphenylcyclopropenone, Vibrational Energy Transfer along Aliphatic Chains, and Energy Calculations of Noble Gas-Halide Clusters
(2014-06-10)In this work, three major topics are investigated. The decarbonylation of diphenylcyclopropenone from its second excited electronic state forms the first part. This reaction was investigated using pump laser pulses of ... -
Scattering of vibrationally excited NO from vanadium dioxide
(2020-01-24)This work investigates the surface dynamics of vanadium dioxide with nitric oxide in dependence of its metal-to-insulator transition (MIT) at 68 °C. At lower temperatures VO2 has a monoclinic lattice structure which has ... -
Solvatationsdynamik an biologischen Grenzschichten
(2003-12-10)The thesis focuses on the solvation dynamics at the interfaces of two representative biological model systems. A synthetic phospholipid membrane interface serves as a model for biological ... -
Stoßwellenuntersuchungen und Modellierung der Pyrolyse von Pentafluorethan und 2-H-Heptafluorpropan
(2014-02-20)The pyrolysis of C2HF5 and C3HF7 have been studied in shock waves by monitoring die UV-absorption of CF2 at 248nm and temperatures in the range of 1400 - 2000 K. Ar was used as bath gas with concentrations in the range ... -
Surface scattering dynamics of graphene and graphite
(2022-04-26)Since its first successful preparation in 2004, graphene has been extensively studied because of its outstanding mechanical, thermal and electronic properties. Graphene is an especially interesting material because of its ... -
The Dynamics of Highly Vibrationally Excited CO Scattered from Metal Surfaces
(2019-04-26)Supersonic molecular beams of highly vibrationally excited CO are scattered from atomically clean Au(111) and Ag(111) surfaces. Specifically, incident CO is prepared in the (v = 17, J = 0) state of the electronic ground ... -
Ultraschnelle, lichtinduzierte Primärprozesse im elektronisch angeregten Zustand des Grün Fluoreszierenden Proteins (GFP)
(2003-02-11)The photophysical processes of Green Fluorescent Protein (GFP) were studied by femtosecond time- and frequency-resolved as well as time-correlated single photon counting (TCSPC) experiments. ... -
Untersuchung der Reaktion von Wasserstoffatomen mit Sauerstoffmolekülen (H+O2+M → HO2+M) in weiten Druck- und Temperaturbereichen
(2004-07-20)In this work the pressure and temperature dependence of the combination reaction of hydrogen atoms with oxygen moleculesIn the experiments, the rate constants were measured at various ... -
Zeitaufgelöste Fluoreszenzspektroskopie unimolekularer Reaktionen im Überschalldüsenstrahl: <i>trans-cis</i>-Photoisomerisierung, Phenylringtorsion, intramolekularer Wasserstoffatomtransfer
(2005-11-02)In this work three types of unimolecular reactions were studied spectroscopically and theoretically with model systems: (1) the trans-cis-photoisomerization of trans-stilbene and its ...