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Entwicklung helikal-chiraler Alignment-Medien zur enantiodifferenzierenden RDC-basierten Strukturanalyse

Wolf, Kai Christoph (2018)
Entwicklung helikal-chiraler Alignment-Medien zur enantiodifferenzierenden RDC-basierten Strukturanalyse.
Technische Universität Darmstadt
Ph.D. Thesis, Primary publication

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Item Type: Ph.D. Thesis
Type of entry: Primary publication
Title: Entwicklung helikal-chiraler Alignment-Medien zur enantiodifferenzierenden RDC-basierten Strukturanalyse
Language: German
Referees: Reggelin, Prof. Dr. Michael ; Thiele, Prof. Dr. Christina
Date: 2018
Place of Publication: Darmstadt
Date of oral examination: 4 June 2018
Abstract:

Diese Dissertation behandelt die Entwicklung helikal-chiraler Alignment-Medien auf Basis von Poly(phenylacetylenen) zum Einsatz in der RDC-basierten NMR-Strukturanalytik. Auf Grundlage eines literaturbekannten, flüssigkristallbildenden Poly(phenylacetylens) werden quervernetzbare Copolymere entwickelt, welche nach dem "strain induced alignment in a gel"-Prinzip agieren. Die so erhaltenen Gele weisen hervorragende enantiodifferenzierende Orientierungseigenschaften für organische Moleküle auf. Desweiteren werden binäre, flüssigkristalline Mischphasen aus unterschiedlichen Poly(phenylacetylenen) untersucht, die je nach Polaritätsunterschied homogene Phasen oder zweiphasige Systeme ausbilden. Besonders letztere erweisen sich als äußerst interessant, da sie die simultane Bestimmung von Tensoren in einer Probe zulassen.

Alternative Abstract:
Alternative AbstractLanguage

Subject of this thesis is the development of helically-chiral alignment media based on poly(phenylacetylenes) for the application in RDC-based NMR structure analysis. Crosslinkable copolymers were developed which act via the 'strain induced alignment in a gel'-principle, based on a literature-known, lyotropic liquid crystal (LLC) forming poly(phenylacetylene). The obtained gels possess excellent enantiodifferentiating alignment properties for organic molecules. In addition, binary LLC phases were investigated, composed of different poly(phenylacetylenes) with varied polarity. Those exhibit either homogeneous or biphasic LLC-phases. Especially the latter are of particular interest as they allow the simultaneous assignment of two tensors in one probe.

English
URN: urn:nbn:de:tuda-tuprints-75340
Classification DDC: 500 Science and mathematics > 540 Chemistry
Divisions: 07 Department of Chemistry
07 Department of Chemistry > Clemens-Schöpf-Institut > Organ Chemistry
Date Deposited: 10 Jul 2018 11:01
Last Modified: 10 Jul 2018 11:01
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/7534
PPN: 433459867
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