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Impact of substitution pattern and chain length on the thermotropic properties of alkoxy-substituted triphenyl-tristriazolotriazines
Zitieren Sie bitte immer diese URN: urn:nbn:de:bvb:20-opus-220019
- Tristriazolotriazines (TTTs) with a threefold alkoxyphenyl substitution were prepared and studied by DSC, polarized optical microscopy (POM) and X-ray scattering. Six pentyloxy chains are sufficient to induce liquid-crystalline behavior in these star-shaped compounds. Thermotropic properties of TTTs with varying substitution patterns and a periphery of linear chains of different lengths, branching in the chain and swallow-tails, are compared. Generally, these disks display broad and stable thermotropic mesophases, with the tangential TTT beingTristriazolotriazines (TTTs) with a threefold alkoxyphenyl substitution were prepared and studied by DSC, polarized optical microscopy (POM) and X-ray scattering. Six pentyloxy chains are sufficient to induce liquid-crystalline behavior in these star-shaped compounds. Thermotropic properties of TTTs with varying substitution patterns and a periphery of linear chains of different lengths, branching in the chain and swallow-tails, are compared. Generally, these disks display broad and stable thermotropic mesophases, with the tangential TTT being superior to the radial isomer. The structure–property relationships of the number of alkyl chains, their position, length and structure were studied.…
Autor(en): | Thorsten Rieth, Natalie Tober, Daniel Limbach, Tobias Haspel, Marcel Sperner, Niklas Schupp, Philipp Wicker, Stefan Glang, Matthias Lehmann, Heiner Detert |
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URN: | urn:nbn:de:bvb:20-opus-220019 |
Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Fakultät für Chemie und Pharmazie / Institut für Organische Chemie |
Sprache der Veröffentlichung: | Englisch |
Titel des übergeordneten Werkes / der Zeitschrift (Englisch): | Molecules |
ISSN: | 1420-3049 |
Erscheinungsjahr: | 2020 |
Band / Jahrgang: | 25 |
Heft / Ausgabe: | 23 |
Aufsatznummer: | 5761 |
Originalveröffentlichung / Quelle: | Molecules (2020) 25:23, 5761. https://doi.org/10.3390/molecules25235761 |
DOI: | https://doi.org/10.3390/molecules25235761 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
Freie Schlagwort(e): | X-ray diffraction; differential scanning calorimetry; discotic liquid crystals; heterocycles; polarizing optical microscopy; star-shaped compounds; structure–property relation; swallow-tail |
Datum der Freischaltung: | 12.08.2022 |
Datum der Erstveröffentlichung: | 07.12.2020 |
Lizenz (Deutsch): | CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |