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First Approaches to Tailor-Made Surfactants and Transition Metal Complexes of Breslow Intermediates

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First Approaches to Tailor-Made Surfactants and Transition Metal Complexes of Breslow Intermediates (Tienda española)

Tim Schreiner (Autor)

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Lectura de prueba, PDF (770 KB)
Indice, PDF (550 KB)

ISBN-13 (Impresion) 9783736971066
ISBN-13 (E-Book) 9783736961067
Idioma Inglés
Numero de paginas 190
Laminacion de la cubierta Brillante
Edicion 1.
Lugar de publicacion Göttingen
Lugar de la disertacion Köln
Fecha de publicacion 05.11.2019
Clasificacion simple Tesis doctoral
Area Química
Química orgánica
Físicoquimica
Palabras claves Tensid, Surfactant, Co-Surfactant, Amphiphile, Grenzfläche, Nanostructure, Microemulsion, Florescence, Phase Behaviour, Intermolecular Interaction, Pi-Stacking, Additive, Crystal, Complex, Incorporation, Cell Labeling, Surface Tension, Sodium Alkyl Benzene Sulfonate, Carbene, Breslow Intermediate, NHC, Cobalt, Transition Metal
Descripcion

Microemulsions are thermodynamically stable, macroscopically isotropic, nanostructured mixtures of at least three components: a polar, a non-polar and an amphiphilic; in general water, oil and surfactant. The surfactant, if optimally selected, generates an ultra-low interfacial tension and a large internal interface. Both properties are of central relevance in this thesis. In the first part, the new fluorescent surfactant class NaCX,YANS was synthesized, comprehensively characterized and first application-relevant studies in the field of cell labeling were carried out. The efficiency – namely the reduction of the interfacial tension – of this new surfactant class was demonstrated at the phase behaviour of non-ionic microemulsions in comparison with common ionic surfactants. As companion product, the highly efficient surfactant class NaCX,YABS was developed, which shows great potential for the independent formation of microemulsions without further co-surfactant. Since microemulsions can completely solubilize hydrophilic and lipophilic components, these systems are outstandingly suitable as reaction medium in organic synthesis across the internal interface. This was closer investigated in decomposition experiments of glucose by an N-heterocyclic carbene (NHC). Moreover, extensive complexation reactions of aldehyde adducts of NHCs (Breslow intermediates) with transition metal compounds provided initial insights into their coordination behaviour. In particular, the high reactivity of cobalt towards Breslow intermediates has been highlighted.