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Self-Assembly of Aminocyclopropenium Salts: En?Route to Deltic Ionic Liquid Crystals.

ABSTRACT: Aminocyclopropenium ions have raised much attention as organocatalysts and redox active polymers. However, the self-assembly of amphiphilic aminocyclopropenium ions remains challenging. The first deltic ionic liquid crystals based on aminocyclopropenium ions have been developed. Differential scanning calorimetry, polarizing optical microscopy and X-ray diffraction provided insight into the unique self-assembly and nanosegregation of these liquid crystals. While the combination of small headgroups with linear p-alkoxyphenyl units led to bilayer-type smectic mesophases, wedge-shaped units resulted in columnar mesophases. Upon increasing the size and polyphilicity of the aminocyclopropenium headgroup, a lamellar phase was formed.

SUBMITTER: Litterscheidt J

PROVIDER: S-EPMC7317216 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature

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Self-Assembly of Aminocyclopropenium Salts: En Route to Deltic Ionic Liquid Crystals.

Litterscheidt Juri J Bandar Jeffrey S JS Ebert Max M Forschner Robert R Bader Korinna K Lambert Tristan H TH Frey Wolfgang W Bühlmeyer Andrea A Brändle Marcus M Schulz Finn F Laschat Sabine S

Angewandte Chemie (International ed. in English) 20200407 26

Aminocyclopropenium ions have raised much attention as organocatalysts and redox active polymers. However, the self-assembly of amphiphilic aminocyclopropenium ions remains challenging. The first deltic ionic liquid crystals based on aminocyclopropenium ions have been developed. Differential scanning calorimetry, polarizing optical microscopy and X-ray diffraction provided insight into the unique self-assembly and nanosegregation of these liquid crystals. While the combination of small headgroup ...[more]

PMID: 32119178

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