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Influence of the Counteranion on the Ability of 1-Dodecyl-3-methyltriazolium Ionic Liquids to Form Mesophases

TitleInfluence of the Counteranion on the Ability of 1-Dodecyl-3-methyltriazolium Ionic Liquids to Form Mesophases
Publication TypeJournal Article
Year of Publication2015
AuthorsStappert, K, Unal, D, Spielberg, ET, Mudring, AV
Journal Design
Volume15
Pagination752-758
Date Published02
Type of ArticleArticle
ISBN Number1528-7483
Accession NumberWOS:000349137500030
Keywordsbehavior, crystals, imidazolium salts
Abstract

rdigitated alkyl tails. Within the layers, the cations are separated by anions. The rod-shaped triiodide anion forces the triazolium cation to align with it in this crystal structure but due to its space requirement reduces the alkyl chain interdigitation which prevents the formation of a mesophase. Rather the compound transforms directly from a crystalline solid to an (ionic) liquid like the analogous bis(trifluorosulfonyl)amide. In contrast, the simple halides and the hexafluorophosphate form liquid crystalline phases. Their clearing points shift with increasing anion radius to lower temperatures.

DOI10.1021/cg501564j
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