Intramolecular Diels Alder reactions in highly organized imidazolium salt-based ionic liquid crystals

RSC Advances ◽  
2015 ◽  
Vol 5 (1) ◽  
pp. 635-639 ◽  
Author(s):  
Tien Dat Do ◽  
Andreea R. Schmitzer
Keyword(s):  
Ionic Liquid ◽  
Liquid Crystals ◽  
Diels Alder ◽  
Imidazolium Salts ◽  
Imidazolium Salt ◽  
New Family ◽  
Ionic Liquid Crystals

This paper describes the development of a new family of ionic liquid crystals based on imidazolium salts and their applications as media for intramolecular Diels Alder reactions.

Ionic liquid crystals of imidazolium salts with a pendant hydroxyl group

2006 ◽  
Vol 16 (29) ◽  
pp. 2972 ◽  
Author(s):  
Josh Y. Z. Chiou ◽  
J. N. Chen ◽  
J. S. Lei ◽  
Ivan J. B. Lin
Keyword(s):  
Ionic Liquid ◽  
Liquid Crystals ◽  
Hydroxyl Group ◽  
Imidazolium Salts ◽  
Ionic Liquid Crystals

Ionic liquids and ionic liquid crystals of vinyl functionalized imidazolium salts

2011 ◽  
Vol 21 (6) ◽  
pp. 1866-1873 ◽  
Author(s):  
Shih-Ci Luo ◽  
Shaowen Sun ◽  
Amol R. Deorukhkar ◽  
Jung-Tang Lu ◽  
Amitabha Bhattacharyya ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Crystals ◽  
Imidazolium Salts ◽  
Ionic Liquid Crystals

scholarly journals Ionic Liquid Crystals: Self-assembly of Imidazolium Salts Containing an L-Glutamic Acid Moiety

2008 ◽  
Vol 37 (5) ◽  
pp. 538-539 ◽  
Author(s):  
Sanami Yazaki ◽  
Yuko Kamikawa ◽  
Masafumi Yoshio ◽  
Atsushi Hamasaki ◽  
Tomohiro Mukai ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Liquid Crystals ◽  
Glutamic Acid ◽  
Self Assembly ◽  
Imidazolium Salts ◽  
Acid Moiety ◽  
Ionic Liquid Crystals

Microwave-Assisted Synthesis and Mesomorphic Properties of Novel Unsymmetric Imidazolium as Ionic Liquid Crystals

2011 ◽  
Vol 181-182 ◽  
pp. 181-184
Author(s):  
Teng Zhou Yang ◽  
Rui Cheng ◽  
Xu Ying Liu ◽  
Wen Guang Wang ◽  
Jia Ling Pu
Keyword(s):  
Ionic Liquid ◽  
Liquid Crystals ◽  
Smectic Phase ◽  
Microwave Assisted Synthesis ◽  
Imidazolium Salts ◽  
Microwave Assisted ◽  
Ionic Liquid Crystals ◽  
Mesomorphic Properties ◽  
Microwave Assisted Method

Two kinds of novel unsymmetric imidazolium salts based ionic liquid crystals (1- [4-(dodecyloxy) phenyl]-3-hexyl/octyl-1H-imidazol-3-ium bromide) were efficiently prepared using a microwave-assisted method. Their mesomorphism has been fully investigated by POM and DSC. The two imidazolium salts displayed typical and good smectic phase textures.

scholarly journals Long-alkyl-chain-derivatized imidazolium salts and ionic liquid crystals with tailor-made properties

RSC Advances ◽  
2014 ◽  
Vol 4 (24) ◽  
pp. 12476-12481 ◽  
Author(s):  
Xinjiao Wang ◽  
Michelle Sternberg ◽  
Florian T. U. Kohler ◽  
Berthold U. Melcher ◽  
Peter Wasserscheid ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Crystals ◽  
Liquid Crystalline ◽  
Alkyl Chain ◽  
Imidazolium Salts ◽  
Crystalline Materials ◽  
Ionic Liquid Crystals ◽  
Liquid Crystalline Materials ◽  
Long Alkyl Chain

New ionic liquids and ionic liquid crystalline materials with custom-tailored properties were synthesized based on long-alkyl-chain-derivatized 1,3-dialkylimidazolium salts.

New ionic liquid crystals based on imidazolium salts

2006 ◽  
Vol 30 (4) ◽  
pp. 528 ◽  
Author(s):  
William Dobbs ◽  
Laurent Douce ◽  
Lionel Allouche ◽  
Alain Louati ◽  
François Malbosc ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Liquid Crystals ◽  
Imidazolium Salts ◽  
Ionic Liquid Crystals

scholarly journals Ion conformation and orientational order in a dicationic ionic liquid crystal studied by solid-state nuclear magnetic resonance spectroscopy

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Debashis Majhi ◽  
Sergey V. Dvinskikh
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Crystals ◽  
Bond Order ◽  
Van Der Waals ◽  
Orientational Order ◽  
Smectic Phase ◽  
Side Chains ◽  
Dicationic Ionic Liquid ◽  
Ionic Liquid Crystals

AbstractIonic liquids crystals belong to a special class of ionic liquids that exhibit thermotropic liquid-crystalline behavior. Recently, dicationic ionic liquid crystals have been reported with a cation containing two single-charged ions covalently linked by a spacer. In ionic liquid crystals, electrostatic and hydrogen bonding interactions in ionic sublayer and van der Waals interaction in hydrophobic domains are the main forces contributing to the mesophase stabilization and determining the molecular orientational order and conformation. How these properties in dicationic materials are compared to those in conventional monocationic analogs? We address this question using a combination of advanced NMR methods and DFT analysis. Dicationic salt 3,3′-(1,6-hexanediyl)bis(1-dodecylimidazolium)dibromide was studied. Local bond order parameters of flexible alkyl side chains, linker chain, and alignment of rigid polar groups were analyzed. The dynamic spacer effectively “decouples” the motion of two ionic moieties. Hence, local order and alignment in dicationic mesophase were similar to those in analogous single-chain monocationic salts. Bond order parameters in the side chains in the dicationic smectic phase were found consistently lower compared to double-chain monocationic analogs, suggesting decreasing contribution of van der Waals forces. Overall dication reorientation in the smectic phase was characterized by low values of orientational order parameter S. With increased interaction energy in the polar domain the layered structure is stabilized despite less ordered dications. The results emphasized the trends in the orientational order in ionic liquid crystals and contributed to a better understanding of interparticle interactions driving smectic assembly in this and analogous ionic mesogens.

Molecular dynamics and electrical conductivity of Guanidinium based ionic liquid crystals: Influence of cation headgroup configuration

2021 ◽  
Vol 330 ◽  
pp. 115666
Author(s):  
Mohamed A. Kolmangadi ◽  
Arda Yildirim ◽  
Kathrin Sentker ◽  
Martin Butschies ◽  
Andrea Bühlmeyer ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Electrical Conductivity ◽  
Ionic Liquid ◽  
Liquid Crystals ◽  
Ionic Liquid Crystals
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