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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]

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