Metal-free C–H functionalization of pyrrolidine to pyrrolinium-based room temperature ionic liquid crystals

2021 ◽  
Author(s):  
Sumana Mandal ◽  
Ravindra Kumar Gupta ◽  
Suraj Kumar Pathak ◽  
D. S. Shankar Rao ◽  
S. Krishna Prasad ◽  
...  

C–H functionalization of pyrrolidine-enabled synthesis of a new class of ionic liquid crystals

2012 ◽  
Vol 22 (41) ◽  
pp. 21987 ◽  
Author(s):  
Gundula F. Starkulla ◽  
Simon Klenk ◽  
Martin Butschies ◽  
Stefan Tussetschläger ◽  
Sabine Laschat

2013 ◽  
Vol 1 (2) ◽  
pp. 354-357 ◽  
Author(s):  
Alexandra Alvarez Fernandez ◽  
Laurens T. de Haan ◽  
Paul H. J. Kouwer

2021 ◽  
Vol 11 (21) ◽  
pp. 10347
Author(s):  
Melina S. Weber ◽  
Margit Schulze ◽  
Giuseppe Lazzara ◽  
Antonio Palumbo Piccionello ◽  
Andrea Pace ◽  
...  

The synthesis and characterization of a new class of 1,2,4-oxadiazolylpyridinium as a cationic scaffold for fluorinated ionic liquid crystals is herein described. A series of 12 fluorinated heterocyclic salts based on a 1,2,4-oxadiazole moiety, connected through its C(5) or C(3) to an N-alkylpyridinium unit and a perfluoroheptyl chain, differing in the length of the alkyl chain and counterions, has been synthesized. As counterions iodide, bromide and bis(trifluoromethane)sulfonimide have been considered. The synthesis, structure, and liquid crystalline properties of these compounds are discussed on the basis of the tuned structural variables. The thermotropic properties of this series of salts have been investigated by differential scanning calorimetry and polarized optical microscopy. The results showed the existence of an enantiotropic mesomorphic smectic liquid crystalline phase for six bis(trifluoromethane)sulfonimide salts.


2012 ◽  
Vol 22 (26) ◽  
pp. 13239 ◽  
Author(s):  
Ignacio Sánchez ◽  
José Antonio Campo ◽  
José Vicente Heras ◽  
M. Rosario Torres ◽  
Mercedes Cano

Soft Matter ◽  
2020 ◽  
Vol 16 (45) ◽  
pp. 10368-10376
Author(s):  
Hongyu Guo ◽  
Qi Yu ◽  
Yuzhi Xiong ◽  
Fafu Yang

The first room-temperature AIE ILCs with excellent mesomorphic, photophysical and electrochemical properties were reported.


2022 ◽  
Author(s):  
Jose Rodrigo Magana ◽  
Adrià Pérez-Calm ◽  
Carlos Rodríguez-Abreu

Planar multiaromatic molecules hierarchically and selectively arrange into nematic chromonic liquid crystals in the room temperature ionic liquid 2-hydroxyethylammonium formate. In a proof-of-concept, these liquid crystals were used as reaction...


2004 ◽  
Vol 419 (1) ◽  
pp. 27-46 ◽  
Author(s):  
Pradip Bhowmik ◽  
Haesook Han ◽  
Ivan Nedeltchev ◽  
James Cebe

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