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Impact of substitution pattern and chain length on the thermotropic properties of alkoxy-substituted triphenyl-tristriazolotriazines
Please always quote using this 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.…
Author: | 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 |
Document Type: | Journal article |
Faculties: | Fakultät für Chemie und Pharmazie / Institut für Organische Chemie |
Language: | English |
Parent Title (English): | Molecules |
ISSN: | 1420-3049 |
Year of Completion: | 2020 |
Volume: | 25 |
Issue: | 23 |
Article Number: | 5761 |
Source: | Molecules (2020) 25:23, 5761. https://doi.org/10.3390/molecules25235761 |
DOI: | https://doi.org/10.3390/molecules25235761 |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
Tag: | X-ray diffraction; differential scanning calorimetry; discotic liquid crystals; heterocycles; polarizing optical microscopy; star-shaped compounds; structure–property relation; swallow-tail |
Release Date: | 2022/08/12 |
Date of first Publication: | 2020/12/07 |
Licence (German): | CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |