Solid-state NMR on columnar supramolecular structures [Elektronische Ressource] : benzene-1,3,5-tricarboxamides oligo-(p-phenylenevinylene)s metal-free phthalocyanine H_1tn2-Pc-op-S-C12 / vorgelegt von Martin Wegner

Solid-State NMR onColumnar Supramolecular StructuresBenzene-1,3,5-TricarboxamidesOligo-(p-Phenylenevinylene)sMetal-Free Phthalocyanine H Pc-op-S-C122Dissertation zur Erlangung des Grades„Doktor der Naturwissenschaften“im Promotionsfach Chemie am Fachbereich Chemie, Pharmazie und Geowissenschaftender Johannes Gutenberg-Universität Mainzvorgelegt vonMartin Wegnergeboren in Heide in HolsteinMainz 2010Meinen ElternAbstractThe present work deals with the characterisation of three columnar self-assembled sys-tems, thatis, benzene-1,3,5-tricarboxamides, aperipherallythioalkyl-substitutedphthalo-cyanine, and several oligo-(p-phenylenevinylene)s. In order to probe the supramolecularorganisation solid-state NMR has been used as the main technique, supported by X-raymeasurements, theoretical methods, and thermal analysis.Benzene-1,3,5-tricarboxamides (BTAs) turned out to be well suited model compoundsto study various fundamental supramolecular interactions, such as --interactions, hy-drogen bonding, as well as dynamic and steric effects of attached side chains. Six BTAshave been investigated in total, five with a CO-centred amide group bearing different sidechains and one with an inverted N-centred amide group. The physical properties of theseBTAs have been investigated as a function of temperature. The results indicated that incase of the CO-centred BTAs the stability of the columnar mesophase depends stronglyon the nature of the side chains.