Browsing Fakultät für Chemie (inkl. GAUSS) by Advisor & Referee "Hoyermann, Karlheinz Prof. Dr."
Now showing items 1-20 of 26
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Partikelbildung bei der Alkenozonolyse und ihre Kopplung an die Radikalchemie
(2012-08-21)Global warming is one of the most crucial and challenging problems in recent times. However, many aspects of this field are highly fraught with uncertainty, including the new particle formation in the atmosphere. Aside ... -
Totalsynthese der Mansouramycine A-E aus Streptomyces sp. und Rhodium-katalysierte 1,2-Additionen an cyclische Enone
(2009-10-02)The following thesis is divided into two sections. The first part deals with the total synthesis of Mansouramycin A-E. The second part shows a new high enantioselective rhodium catalyzed ... -
Synthesen von Organogalliumhydriden und Organogalliumhalogeniden
(2007-06-26)This dissertation describes how gallium hydride can be stabilised with arduengo carbenes. Furthermore the structure of gallium hydride vinamidine was researched. One focus was the reactivity ... -
Spektroskopische Untersuchungen zur Kinetik und Produktbildung bei Reaktionen von zyklischen und offenkettigen Kohlenwasserstoff-Radikalen
(2006-10-25)Reactions of pure and partly oxygenated hydrocarbon radicals are of major interest in two different fields: On the one hand tailored polymerisation products are of daily use in different ... -
Messung und Modellierung der Initiatoreffektivität organischer Peroxide in der Ethen-Hochdruckpolymerisation
(2006-05-31)In this thesis the initiator efficiency of assymetric dialkyl peroxides (tert-Butyl-O-O-R1) and diverse tert-alkyl peroxyesters (R2-(C=O)-O-O-R3) was determined in the high-pressure ... -
Pyrazolliganden mit Imin-Seitenarmen und ihre zweikernigen Palladium(II)- und Nickel(II)-Komplexe: neue bimetallische Katalysatoren für die Olefinpolymerisation
(2006-01-10)A series of compartmental pyrazole/imine dinucleating ligands (L) with various backbone substituents and different steric bulk of the appended aryl imine groups has been prepared. With ... -
Detailed Investigations into the Propagation and Termination Kinetics of Bulk Homo- and Copolymerization of (Meth)Acrylates
(2005-08-16)Three aspects of free-radical polymerization have been addressed: (i) the propagation rate in acrylate/methacrylate copolymerizations, (ii) the chain-length dependence of the termination ... -
Modellierung der Kinetik und Mikrostruktur radikalischer Polymerisationen bei hohen Drücken und Temperaturen
(2005-08-16)The kinetics of the homopolymerization of butyl acrylate at high pressure and temperature was investigated. Branches, terminal double bonds and the amount of trimer were analyzed quantitatively ... -
Polynukleare Cluster der d-Metalle mit chelatisierenden Liganden
(2005-05-27)This thesis describes the syntheses of polynuclear clusters of d-block-elements with chelating ligands. The used ligands where 2-(Bis(diphenyldithiophosphin))methyl-pyridin ... -
Kinetische und thermodynamische Untersuchungen der Hochdruck-Copolymerisation von Ethen mit (Meth)Acrylsäureestern
(2005-03-18)Kinetic and thermodynamic aspects of the high-pressure copolymerization of ethene and (meth)acrylic acid(esters) have been studied in wide ranges of temperature and pressure. Reactivity ... -
Synthesis, Structural Studies and Reactivity of Monomeric Organo Aluminum and Gallium Amides, Hydrogensulfides and Hydroxides Using N-Heterocyclic Carbene: Precursors for Heterobimetallic Systems
(2004-12-20)The first part of this work was focused on reactions of elemental sulfur, selenium and tellurium with LAlH 2. Phosphine catalysis has significant influence on the reaction products and such ... -
Intramolekulare Titan-vermittelte Aminocyclopropanierung als Zugang zu N-Benzyl-4-alkyl-2-azabicyclo[3.1.0]hexanen - Synthese von tri- und tetrasubstituierten Alkenen durch Palladium-katalysierte Kreuzkupplung von Alkin-Titan-Komplexen
(2004-11-02)Alkene- and alkadiene-substituted formamides were intramolecularly amino-cyclopropanated. Furthermore, titanium-complexes of unsaturated compounds were cross-coupled with severa bromobenzenes via ... -
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 ... -
Kinetik der Reaktionen des Hydroxylradikals mit ungesättigten Kohlenwasserstoffen in einer Lavaldüsenexpansion
(2004-04-06)The investigation of hydroxyl radical reactions with unsaturated hydrocarbons like ethyne, ethylene, propene and isoprene at low temperatures plays a significant role for the understanding ... -
Reaktionskinetik von Verbrennungsprozessen in der Gasphase: Spektroskopische Untersuchungen der Geschwindigkeit, Reaktionsprodukte und Mechanismen von Elementarreaktionen und die Modellierung der Oxidation von Kohlenwasserstoffen mit detaillierten Reaktionsmechanismen
(2004-01-07)The combustion of hydrocarbon fuels is still the major energy source. The optimisation of combustion processes with respect to the degree of efficiency and pollutant formation are current ... -
Terminierungskinetik radikalischer Homo- und Copolymerisationen bis zu hohen Monomerumsätzen
(2003-07-22)The termination kinetics of free-radical homo- and copolymerizations have been investigated up to high monomer conversions using the SP-PLP technique (Single Pulse-Pulsed Laser Polymerization). ... -
Untersuchungen an Flavonsäurederivaten mit hoher ß-Glukanaffinität
(2003-04-29)For the direct in vivo-detection of deep seated fungal infections a specific radiodiagnostical has been synthesised. Therefore a tyramine derivative of a stilbene-type optical brightener ... -
Mehrkernige Kupferkomplexe mit bidentalen heteroaromatischen Stickstoffdonorliganden.
(2003-04-29)This thesis describes the syntheses of di- und polynuclear copper complexes containing bis(diorganochalcogenophosphorus)amid and bidentate amine (e. g. 4,4'-bipyridine) ligands. Depending ... -
Untersuchungen zum Sekundärmetabolismus arktischer und antarktischer Meereisbakterien
(2002-09-04)In this work psychrophile bacteria from arctic and antarctic sea-ice were submitted to a chemical and biological screening and due to the results some were examined thoroughly for interesting ... -
Erzeugung, Nachweis und Reaktionen reiner, teiloxidierter und substituierter Kohlenwasserstoffradikale in der Gasphase
(2002-05-15)Products and rates of the reactions of 1,1,1-Trichlorethane, Isobutylchloride, Di-t-Butyl-Peroxide, t-Butyl-Peroxy-Pivalate and Dimethoxymethane with Fluorine atoms are examined in ...