Fluorinated triphenylenes and a path to short tailed discotic liquid crystals: synthesis, structure and transport properties
A new synthetic approach for fluorinated alkoxytriphenylene discotic liquid crystals is presented. This methodology exploits the previously described photocyclodehydrofluorination (PCDHF) reaction for the preparation of fluorinated triphenylene derivatives coupled with a variety of nucleophilic arom...
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Veröffentlicht in: | Materials advances 2022-01, Vol.3 (1), p.534-546 |
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Hauptverfasser: | , , , , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | A new synthetic approach for fluorinated alkoxytriphenylene discotic liquid crystals is presented. This methodology exploits the previously described photocyclodehydrofluorination (PCDHF) reaction for the preparation of fluorinated triphenylene derivatives coupled with a variety of nucleophilic aromatic substitution (S
N
Ar) reactions. This particular combination of reactions provides a versatile route to discotic materials with carefully controlled core fluorine and alkoxy tail content. In the course of these studies, new discotic materials with minimal tail content have been revealed. The mesogenic properties of these materials are reported, and their charge transport properties are measured using the time of flight technique.
We present a versatile synthesis method capable of creating triphenylene discotic liquids with enhanced control of the number and type of tails. The compounds obtained from this method include a discotic liquid crystal with unusually short methoxy tails. |
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ISSN: | 2633-5409 2633-5409 |
DOI: | 10.1039/d1ma00606a |