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“Room temperature Imidazolium linked Chalcone based Ionic LCs: Role of Terminal position on Mesomorphism”. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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2
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Wang Z, Chen J, Li Y, Dong K, Yu Y. EDL structure of ionic liquid-MXene-based supercapacitor and hydrogen bond role on the interface: a molecular dynamics simulation investigation. Phys Chem Chem Phys 2022; 24:5903-5913. [PMID: 35195622 DOI: 10.1039/d1cp05355h] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As a new class of electrodes, MXenes have shown excellent performance in supercapacitors. At the same time, ionic liquid (IL) electrolytes with wider electrochemical windows are expected to substantially increase the supercapacitor capacitance. The combination of MXenes and ILs is promising for energy storage devices with a high energy density and power density. The studies have indicated that the surface terminations of MXenes and the functional groups of ILs, can both strongly influence the supercapacitor's performance. However, studies at the molecular level are still lacking. In this work, we performed molecular dynamics simulations to investigate the interfacial structures and their influence on the energy storage mechanism. The results show that the two ILs exhibit very different charging rates, though the charge densities are similar after charging equilibrium. The interfacial analysis reveals different electrical double-layer (EDL) structures, in which most cations stay perpendicular to the Ti3C2(OH)2 electrode when some cations shift to a vertical arrangement near the Ti3C2O2 electrode. Such structures have led to the higher capacitance of the Ti3C2(OH)2 electrode, even more than 2 times that of the Ti3C2O2 electrode as the potential difference ranges from 0 to 2 V. It was also found that hydrogen bonds between the -OH groups of HEMIm+ cations and terminations of the MXene play an important role in improving the capacitances by aggregating more HEMIm+ cations on the surface of the Ti3C2(OH)2 electrode. Our work provides clear mechanistic evidence that both terminations of the MXene electrodes and functional groups of the IL electrolytes affect the interfacial structures and the EDL formation, further leading to the different supercapacitor performance, which will be helpful in designing highly efficient energy-storage devices.
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Affiliation(s)
- Ziyi Wang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510641, P. R. China.
| | - Junwu Chen
- Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China.
| | - Yao Li
- Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China.
| | - Kun Dong
- Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China.
| | - Yinghao Yu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510641, P. R. China.
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3
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Yan A, Sokolinski T, Lane W, Tan J, Ferris K, Ryan EM. Applying transfer learning with convolutional neural networks to identify novel electrolytes for metal air batteries. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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4
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Schrage BR, Zhang B, Petrochko SC, Zhao Z, Frkonja-Kuczin A, Boika A, Ziegler CJ. Highly Soluble Imidazolium Ferrocene Bis(sulfonate) Salts for Redox Flow Battery Applications. Inorg Chem 2021; 60:10764-10771. [PMID: 34210136 DOI: 10.1021/acs.inorgchem.1c01473] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Redox flow batteries (RFBs) are scalable devices that employ solution-based redox active components for scalable energy storage. To maximize energy density, new highly soluble catholytes and anolytes need to be synthesized and evaluated for their electrochemical performance. To that end, we synthesized a series of imidazolium ferrocene bis(sulfonate) salts as highly soluble catholytes for RFB applications. Six salts with differing alkyl chain lengths on the imidazolium cation were synthesized, characterized, and electrochemically analyzed. While aqueous solubility was significantly improved, the reactivity of the imidazolium cation and the increased viscosities of the salt solutions in water (which increase with increasing imidazolium chain length) limit the applicability of these materials to RFB design.
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Affiliation(s)
- Briana R Schrage
- Department of Chemistry, University of Akron, Akron, Ohio 44312-3601, United States
| | - Baosen Zhang
- Department of Chemistry, University of Akron, Akron, Ohio 44312-3601, United States
| | - Stephen C Petrochko
- Department of Chemistry, University of Akron, Akron, Ohio 44312-3601, United States
| | - Zhiling Zhao
- Department of Chemistry, University of Akron, Akron, Ohio 44312-3601, United States
| | | | - Aliaksei Boika
- Department of Chemistry, University of Akron, Akron, Ohio 44312-3601, United States
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5
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Mandal S, Gupta RK, Pathak SK, Rao DSS, Prasad SK, Ammathnadu Sudhakar A, Jana CK. Metal-free C–H functionalization of pyrrolidine to pyrrolinium-based room temperature ionic liquid crystals. NEW J CHEM 2021. [DOI: 10.1039/d1nj00647a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
C–H functionalization of pyrrolidine-enabled synthesis of a new class of ionic liquid crystals
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Affiliation(s)
- Sumana Mandal
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- India
| | | | - Suraj Kumar Pathak
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- India
| | | | | | | | - Chandan K. Jana
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- India
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6
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Majhi D, Komolkin AV, Dvinskikh SV. NMR Spectroscopic Studies of Cation Dynamics in Symmetrically-Substituted Imidazolium-Based Ionic Liquid Crystals. Int J Mol Sci 2020; 21:ijms21145024. [PMID: 32708674 PMCID: PMC7404116 DOI: 10.3390/ijms21145024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 07/11/2020] [Accepted: 07/12/2020] [Indexed: 11/16/2022] Open
Abstract
Ionic liquid crystals (ILCs) present a new class of non-molecular soft materials with a unique combination of high ionic conductivity and anisotropy of physicochemical properties. Symmetrically-substituted long-chain imidazolium-based mesogenic ionic liquids exhibiting a smectic liquid crystalline phase were investigated by solid state NMR spectroscopy and computational methods. The aim of the study was to reveal the correlation between cation size and structure, local dynamics, and orientational order in the layered mesophase. The obtained experimental data are consistent with the model of a rod-shaped cation with the two chains aligned in opposite directions outward from the imidazolium core. The alignment of the core plane to the phase director and the restricted conformations of the chain segments were determined and compared to those in single-chain counterparts. The orientational order parameter S~0.5-0.6 of double-chain ionic liquid crystals is higher than that of corresponding single-chain analogues. This is compatible with the enhanced contribution of van der Waals forces to the stabilization of smectic layers. Increased orientational order for the material with Br- counterions, which exhibit a smaller ionic radius and higher ability to form hydrogen bonds as compared to that of BF4-, also indicated a non-negligible influence of electrostatic and hydrogen bonding interactions. The enhanced rod-shape character and higher orientational order of symmetrically-substituted ILCs can offer additional opportunities in the design of self-assembling non-molecular materials.
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Affiliation(s)
- Debashis Majhi
- Department of Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden;
| | - Andrei V. Komolkin
- Faculty of Physics, Saint Petersburg State University, 199034 Saint Petersburg, Russia;
| | - Sergey V. Dvinskikh
- Department of Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden;
- Laboratory of Biomolecular NMR, Saint Petersburg State University, 199034 Saint Petersburg, Russia
- Correspondence:
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7
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Wang X, Valldor M, Spielberg ET, Heinemann FW, Meyer K, Mudring AV. Paramagnetic iron-containing ionic liquid crystals. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112583] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Harwood LM, Pitt P, Scott JL, Sousa D. Ultra-high pressure direct syntheses of bis(imidazolium-3-yl)alkane dichlorides. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130639] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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9
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Mordvinkin A, Suckow M, Böhme F, Colby RH, Creton C, Saalwächter K. Hierarchical Sticker and Sticky Chain Dynamics in Self-Healing Butyl Rubber Ionomers. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00159] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Anton Mordvinkin
- Institut für Physik—NMR, Martin-Luther-Universität Halle-Wittenberg, Betty-Heimann-Str. 7, 06120 Halle (Saale), Germany
| | - Marcus Suckow
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Frank Böhme
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Ralph H. Colby
- Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Costantino Creton
- Laboratoire de Sciences et Ingénierie de la Matière Molle, CNRS, ESPCI Paris, PSL Research University, 10 Rue Vauquelin, 75005 Paris, France
| | - Kay Saalwächter
- Institut für Physik—NMR, Martin-Luther-Universität Halle-Wittenberg, Betty-Heimann-Str. 7, 06120 Halle (Saale), Germany
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10
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Bai L, Tang X, Kong S, Song Y, He X, Meng F. Main-chain ionic liquid-crystalline polymers bearing quaternary phosphonium ions. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4431] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Lu Bai
- College of Science; Northeastern University; Shenyang China
| | - Xinqiao Tang
- College of Science; Northeastern University; Shenyang China
| | - Shengwen Kong
- College of Science; Northeastern University; Shenyang China
| | - Ying Song
- College of Science; Northeastern University; Shenyang China
| | - Xiaozhi He
- College of Science; Northeastern University; Shenyang China
| | - Fanbao Meng
- College of Science; Northeastern University; Shenyang China
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11
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Influence of the anion nature and alkyl substituents in the behavior of ionic liquids derived from phenylpyridines. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.062] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Wang S, Liu X, Wang A, Wang Z, Chen J, Zeng Q, Wang X, Zhang L. An ionic liquid crystal-based solid polymer electrolyte with desirable ion-conducting channels for superior performance ambient-temperature lithium batteries. Polym Chem 2018. [DOI: 10.1039/c8py00951a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Almost all the traditional ionic liquids lack liquid crystal properties.
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Affiliation(s)
- Shi Wang
- School of Chemical Sciences
- University of Chinese Academy Sciences
- Beijing
- China
| | - Xu Liu
- School of Chemical Sciences
- University of Chinese Academy Sciences
- Beijing
- China
| | - Ailian Wang
- School of Chemical Sciences
- University of Chinese Academy Sciences
- Beijing
- China
| | - Zhinan Wang
- School of Chemical Sciences
- University of Chinese Academy Sciences
- Beijing
- China
| | - Jie Chen
- School of Chemical Sciences
- University of Chinese Academy Sciences
- Beijing
- China
| | - Qinghui Zeng
- School of Chemical Sciences
- University of Chinese Academy Sciences
- Beijing
- China
| | - Xuefei Wang
- School of Chemical Sciences
- University of Chinese Academy Sciences
- Beijing
- China
| | - Liaoyun Zhang
- School of Chemical Sciences
- University of Chinese Academy Sciences
- Beijing
- China
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13
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14
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Alvarez Fernandez A, Kouwer PHJ. Key Developments in Ionic Liquid Crystals. Int J Mol Sci 2016; 17:E731. [PMID: 27196890 PMCID: PMC4881553 DOI: 10.3390/ijms17050731] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 05/04/2016] [Accepted: 05/06/2016] [Indexed: 11/25/2022] Open
Abstract
Ionic liquid crystals are materials that combine the classes of liquid crystals and ionic liquids. The first one is based on the multi-billion-dollar flat panel display industry, whilst the latter quickly developed in the past decades into a family of highly-tunable non-volatile solvents. The combination yields materials with a unique set of properties, but also with many challenges ahead. In this review, we provide an overview of the key concepts in ionic liquid crystals, particularly from a molecular perspective. What are the important molecular parameters that determine the phase behavior? How should they be introduced into the molecules? Finally, which other tools does one have to realize specific properties in the material?
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Affiliation(s)
- Alexandra Alvarez Fernandez
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands.
- School of Materials Science and Engineering, Nanyang Technological University, Blk N4.1 Nanyang Avenue, Singapore 639798, Singapore.
| | - Paul H J Kouwer
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands.
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15
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Goossens K, Lava K, Bielawski CW, Binnemans K. Ionic Liquid Crystals: Versatile Materials. Chem Rev 2016; 116:4643-807. [PMID: 27088310 DOI: 10.1021/cr400334b] [Citation(s) in RCA: 411] [Impact Index Per Article: 51.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This Review covers the recent developments (2005-2015) in the design, synthesis, characterization, and application of thermotropic ionic liquid crystals. It was designed to give a comprehensive overview of the "state-of-the-art" in the field. The discussion is focused on low molar mass and dendrimeric thermotropic ionic mesogens, as well as selected metal-containing compounds (metallomesogens), but some references to polymeric and/or lyotropic ionic liquid crystals and particularly to ionic liquids will also be provided. Although zwitterionic and mesoionic mesogens are also treated to some extent, emphasis will be directed toward liquid-crystalline materials consisting of organic cations and organic/inorganic anions that are not covalently bound but interact via electrostatic and other noncovalent interactions.
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Affiliation(s)
- Karel Goossens
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS) , Ulsan 689-798, Republic of Korea.,Department of Chemistry, KU Leuven , Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium
| | - Kathleen Lava
- Department of Chemistry, KU Leuven , Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium.,Department of Organic and Macromolecular Chemistry, Ghent University , Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | - Christopher W Bielawski
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS) , Ulsan 689-798, Republic of Korea.,Department of Chemistry and Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798, Republic of Korea
| | - Koen Binnemans
- Department of Chemistry, KU Leuven , Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium
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16
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Takagi K, Yamauchi K, Kubota S, Nagano S, Hara M, Seki T, Murakami K, Ooyama Y, Ohshita J, Kondo M, Masu H. Fused π-conjugated imidazolium liquid crystals: synthesis, self-organization, and fluorescence properties. RSC Adv 2016. [DOI: 10.1039/c5ra25496e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fused π-conjugated imidazolium compounds bearing two or three long alkoxy chains and various counter anions were systematically prepared following our reported synthetic route.
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17
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Synthesis and thermotropic behaviour of bis(imidazolium) salts bearing long-chain alkyl-substituents and of the corresponding dinuclear gold carbene complexes. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2015.10.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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18
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Lei L, Feng L, Song B, Zhai Z, Shang S, Song Z. Ionic liquid crystals with novel thermal properties formed by the gemini surfactants containing four hydroxyl groups. RSC Adv 2016. [DOI: 10.1039/c6ra23235c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The ionic liquid crystals formed by the gemini surfactants containing four hydroxyl groups show sustained-release behavior of phase enthalpy.
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Affiliation(s)
- Lan Lei
- Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical & Materials Engineering
- Jiangnan University
- Wuxi
| | - Lin Feng
- Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical & Materials Engineering
- Jiangnan University
- Wuxi
| | - Binglei Song
- Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical & Materials Engineering
- Jiangnan University
- Wuxi
| | - Zhaolan Zhai
- Key Laboratory of Biomass Energy and Materials
- Institute of Chemical Industry of Forestry Products
- CAF
- Nanjing
- China
| | - Shibin Shang
- Key Laboratory of Biomass Energy and Materials
- Institute of Chemical Industry of Forestry Products
- CAF
- Nanjing
- China
| | - Zhanqian Song
- Key Laboratory of Biomass Energy and Materials
- Institute of Chemical Industry of Forestry Products
- CAF
- Nanjing
- China
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19
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Wang X, Sternberg M, Kohler FTU, Melcher BU, Wasserscheid P, Meyer K. Long-alkyl-chain-derivatized imidazolium salts and ionic liquid crystals with tailor-made properties. RSC Adv 2014. [DOI: 10.1039/c3ra47250g] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
New ionic liquids and ionic liquid crystalline materials with custom-tailored properties were synthesized based on long-alkyl-chain-derivatized 1,3-dialkylimidazolium salts.
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Affiliation(s)
- Xinjiao Wang
- Department of Chemistry and Pharmacy
- Inorganic Chemistry
- Friedrich-Alexander University of Erlangen-Nürnberg (FAU)
- D-91058 Erlangen, Germany
| | - Michelle Sternberg
- Department of Chemistry and Pharmacy
- Inorganic Chemistry
- Friedrich-Alexander University of Erlangen-Nürnberg (FAU)
- D-91058 Erlangen, Germany
| | - Florian T. U. Kohler
- Department of Chemical and Bioengineering
- Reaction Engineering
- Friedrich-Alexander University of Erlangen-Nürnberg (FAU)
- D-91058 Erlangen, Germany
| | - Berthold U. Melcher
- Department of Chemical and Bioengineering
- Reaction Engineering
- Friedrich-Alexander University of Erlangen-Nürnberg (FAU)
- D-91058 Erlangen, Germany
| | - Peter Wasserscheid
- Department of Chemical and Bioengineering
- Reaction Engineering
- Friedrich-Alexander University of Erlangen-Nürnberg (FAU)
- D-91058 Erlangen, Germany
| | - Karsten Meyer
- Department of Chemistry and Pharmacy
- Inorganic Chemistry
- Friedrich-Alexander University of Erlangen-Nürnberg (FAU)
- D-91058 Erlangen, Germany
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Rao X, Zhang J, Zheng J, Song Z, Shang S. Chiral ionic liquid crystals with a bulky rigid core from renewable camphorsulfonic acid. RSC Adv 2014. [DOI: 10.1039/c4ra01510j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Renewable chiral d- and l-camphorsulfonic acids were introduced as new building blocks for the design of ionic liquid crystals.
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Affiliation(s)
- Xiaoping Rao
- Institute of Chemical Industry of Forestry Products
- CAF
- Key Lab. of Biomass Energy and Material
- Jiangsu Province
- National Engineering Lab. for Biomass Chemical Utilization
| | - Jinwen Zhang
- School of Mechanical and Materials Engineering
- Composite Materials and Engineering Center
- Washington State University
- Pullman, USA
| | - Jianqiang Zheng
- Institute of Chemical Industry of Forestry Products
- CAF
- Key Lab. of Biomass Energy and Material
- Jiangsu Province
- National Engineering Lab. for Biomass Chemical Utilization
| | - Zhanqian Song
- Institute of Chemical Industry of Forestry Products
- CAF
- Key Lab. of Biomass Energy and Material
- Jiangsu Province
- National Engineering Lab. for Biomass Chemical Utilization
| | - Shibin Shang
- Institute of Chemical Industry of Forestry Products
- CAF
- Key Lab. of Biomass Energy and Material
- Jiangsu Province
- National Engineering Lab. for Biomass Chemical Utilization
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21
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Rondla R, Lin JCY, Yang CT, Lin IJB. Strong tendency of homeotropic alignment and anisotropic lithium ion conductivity of sulfonate functionalized zwitterionic imidazolium ionic liquid crystals. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:11779-11785. [PMID: 24010889 DOI: 10.1021/la402336n] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Here, we report the first attempt to investigate the liquid crystal (LC) behavior of SO3(-) functionalized imidazolium zwitterionic (SO3(-)ImZI) salts, which display homeotropic alignment on a glass slide without the aid of any aligning approach. Doping lithium salt to ImZI salts lowers the melting temperatures and raises the clearing temperatures substantially to form room temperature ImZILCs. Excellent anisotropic lithium ion conductivity is achieved; which is strengthened by their tendency for homeotropic alignment.
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Affiliation(s)
- Rohini Rondla
- Department of Chemistry, National Dong Hwa University , Shoufeng, Hualien 974, Taiwan
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Katsyuba SA, Vener MV, Zvereva EE, Fei Z, Scopelliti R, Laurenczy G, Yan N, Paunescu E, Dyson PJ. How strong is hydrogen bonding in ionic liquids? Combined X-ray crystallographic, infrared/Raman spectroscopic, and density functional theory study. J Phys Chem B 2013; 117:9094-105. [PMID: 23822750 DOI: 10.1021/jp405255w] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Hydrogen bonding in ionic liquids based on the 1-(2'-hydroxylethyl)-3-methylimidazolium cation ([C₂OHmim](+)) and various anions ([A](-)) of differing H-bond acceptor strength, viz. hexafluorophosphate [PF6](-), tetrafluoroborate [BF₄](-), bis(trifluoromethanesulfonimide) [Tf₂N](-), trifluoromethylsulfonate [OTf](-), and trifluoroacetate [TFA](-), was studied by a range of spectroscopic and computational techniques and, in the case of [C₂OHmim][PF6], by single crystal X-ray diffraction. The first quantitative estimates of the energy (E(HB)) and the enthalpy (-ΔH(HB)) of H-bonds in bulk ILs were obtained from a theoretical analysis of the solid-state electron-density map of crystalline [C₂OHmim][PF6] and an analysis of the IR spectra in crystal and liquid samples. E(HB) for OH···[PF6](-) H-bonds amounts to ~3.4-3.8 kcal·mol(-1), whereas weaker H-bonds (2.8-3.1 kcal·mol(-1)) are formed between aromatic C2H group of imidazolium ring and the [PF6](-) anion. The enthalpy of the OH···[A](-) H-bonds follows the order: [PF6] (2.4 kcal·mol(-1)) < [BF₄] (3.3 kcal·mol(-1)) < [Tf₂N] (3.4 kcal·mol(-1)) < [OTf] (4.7 kcal·mol(-1)l) < [TFA] (6.2 kcal·mol(-1)). The formation of aggregates of self-associated [C₂OHmim](+) cations is present in liquid [C₂OHmim][PF6], [C₂OHmim][BF₄], and [C₂OHmim][Tf₂N], with the energy of the OH···OH H-bonds amounting to ~6 kcal·mol(-1). Multiple secondary interactions in the bulk ILs influence their structure, vibrational spectra, and H-bond strength. In particular, these interactions can blue-shift the stretching frequencies of the CH groups of the imidazolium ring in spite of red-shifting CH···[A](-) H-bonds. They also weaken the H-bonding in the IL relative to the isolated ion pairs, with these anticooperative effects amounting to ca. 50% of the E(HB) value.
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Affiliation(s)
- Sergey A Katsyuba
- A. E. Arbuzov Institute of Organic and Physical Chemistry of Kazan Scientific Centre of the Russian Academy of Sciences, Arbuzov str. 8, 420088 Kazan, Russia.
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Ionic liquid crystals: Synthesis, structure and applications to I2-free solid-state dye-sensitized solar cells. Macromol Res 2013. [DOI: 10.1007/s13233-013-1097-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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Allen MH, Wang S, Hemp ST, Chen Y, Madsen LA, Winey KI, Long TE. Hydroxyalkyl-Containing Imidazolium Homopolymers: Correlation of Structure with Conductivity. Macromolecules 2013. [DOI: 10.1021/ma302537f] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael H. Allen
- Macromolecules and Interfaces
Institute, Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Sharon Wang
- Department of Materials Science
and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Sean T. Hemp
- Macromolecules and Interfaces
Institute, Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Ying Chen
- Macromolecules and Interfaces
Institute, Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Louis A. Madsen
- Macromolecules and Interfaces
Institute, Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Karen I. Winey
- Department of Materials Science
and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Timothy E. Long
- Macromolecules and Interfaces
Institute, Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
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25
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Rohini R, Lee C, Lu J, Lin IJB. Symmetrical 1,3‐Dialkylimidazolium Based Ionic Liquid Crystals. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.201200598] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rondla Rohini
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan
| | - Ching‐Kuan Lee
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan
| | - Jung‐Tang Lu
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan
| | - Ivan J. B. Lin
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan
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26
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Tseng JCW, Rondla R, Su PYS, Lin IJB. The roles of betaine-ester analogues of 1-N-alkyl-3-N′-methyl imidazolium salts: as amphotropic ionic liquid crystals and organogelators. RSC Adv 2013. [DOI: 10.1039/c3ra43067g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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27
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Porcar R, Ríos-Lombardía N, Busto E, Gotor-Fernández V, Montejo-Bernardo J, García-Granda S, Luis SV, Gotor V, Alfonso I, García-Verdugo E. Chiral Triazolium Salts and Ionic Liquids: From the Molecular Design Vectors to Their Physical Properties through Specific Supramolecular Interactions. Chemistry 2012. [DOI: 10.1002/chem.201202274] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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28
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Solution behavior and solid phase transitions of quaternary ammonium surfactants with head groups decorated by hydroxyl groups. J Colloid Interface Sci 2012; 382:53-60. [DOI: 10.1016/j.jcis.2012.06.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Revised: 06/01/2012] [Accepted: 06/02/2012] [Indexed: 11/23/2022]
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29
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Sutto TE, Duncan TT. The intercalation behavior of ionic liquids in the layered metal dichalcogenide TiS2. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.05.104] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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30
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González L, Altava B, Bolte M, Burguete MI, García-Verdugo E, Luis SV. Synthesis of Chiral Room Temperature Ionic Liquids from Amino Acids - Application in Chiral Molecular Recognition. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200607] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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31
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Junggeburth SC, Schwinghammer K, Virdi KS, Scheu C, Lotsch BV. Towards Mesostructured Zinc Imidazolate Frameworks. Chemistry 2012; 18:2143-52. [DOI: 10.1002/chem.201101530] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Indexed: 11/08/2022]
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32
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Wang M, Pan X, Xiao S, Zhang C, Li W, Dai S. Regulating mesogenic properties of ionic liquid crystals by preparing binary or multi-component systems. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c1jm14790k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Wang KF, Zhang L, Zhuang RR, Jian FF. An iron(III)-containing ionic liquid: characterization, magnetic property and electrocatalysis. TRANSIT METAL CHEM 2011. [DOI: 10.1007/s11243-011-9520-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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34
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Wei Z, Wei X, Sun D, Liu J, Tang X. Crystalline structures and mesomorphic properties of gemini diammonium surfactants with a pendant hydroxyl group. J Colloid Interface Sci 2011; 354:677-85. [DOI: 10.1016/j.jcis.2010.11.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Revised: 11/04/2010] [Accepted: 11/05/2010] [Indexed: 11/29/2022]
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36
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Axenov KV, Laschat S. Thermotropic Ionic Liquid Crystals. MATERIALS 2011; 4:206-259. [PMID: 28879986 PMCID: PMC5448481 DOI: 10.3390/ma4010206] [Citation(s) in RCA: 273] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Accepted: 12/27/2010] [Indexed: 12/26/2022]
Abstract
The last five years’ achievements in the synthesis and investigation of thermotropic ionic liquid crystals are reviewed. The present review describes the mesomorphic properties displayed by organic, as well as metal-containing ionic mesogens. In addition, a short overview on the ionic polymer and self-assembled liquid crystals is given. Potential and actual applications of ionic mesogens are also discussed.
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Affiliation(s)
- Kirill V Axenov
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany.
| | - Sabine Laschat
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany.
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37
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Chen Z, Liu S, Li Z, Zhang Q, Deng Y. Dialkoxy functionalized quaternary ammonium ionic liquids as potential electrolytes and cellulose solvents. NEW J CHEM 2011. [DOI: 10.1039/c1nj20062c] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Lin JCY, Huang CJ, Lee YT, Lee KM, Lin IJB. Carboxylic acid functionalized imidazolium salts: sequential formation of ionic, zwitterionic, acid-zwitterionic and lithium salt-zwitterionic liquid crystals. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10580a] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Luo SC, Sun S, Deorukhkar AR, Lu JT, Bhattacharyya A, Lin IJB. Ionic liquids and ionic liquid crystals of vinyl functionalized imidazolium salts. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm02875d] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Wei Z, Wei X, Wang X, Wang Z, Liu J. Ionic liquid crystals of quaternary ammonium salts with a 2-hydroxypropoxy insertion group. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10236b] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Ríos-Lombardía N, Busto E, Gotor-Fernández V, Gotor V, Porcar R, García-Verdugo E, Luis SV, Alfonso I, García-Granda S, Menéndez-Velázquez A. From salts to ionic liquids by systematic structural modifications: a rational approach towards the efficient modular synthesis of enantiopure imidazolium salts. Chemistry 2010; 16:836-47. [PMID: 19946902 DOI: 10.1002/chem.200901623] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This paper reports a simple and robust modular synthetic strategy that leads to a large variety of configurationally and structurally diverse imidazole-based chiral ionic liquids (CILs) by lipase-catalyzed resolution. The intimate microscopic interactions of the supramolecular ionic network of these imidazolium chiral salts at the molecular level are investigated both spectroscopically (NMR, FT-IR-ATR) and theoretically, and a topological analysis of the experimental electron densities obtained by X-ray diffraction of single crystals is performed. Our results support the key role played by the relative configuration of the -OR group on the hydrogen-bonding pattern and its strong influence on the final physical properties of the imidazolium salt. We also obtained a reasonable correlation between the observed melting point and the non-covalent interactions. The spectroscopic data and the topological analysis reflect the key role played by hydrogen bonds between the OH and imidazolium C2H groups in both cation-anion and cation-cation interactions, with the presence of an OH group leading to an additional inter-cation interaction. This interaction significantly affects the properties of stereoisomeric salts. Even more interestingly, we also studied the effect of the chirality by comparing enantiopure CILs with their racemic mixtures and found that, with the exception of trans-Cy6-OH-Im-Bn-Br, the melting points of the racemic mixtures are higher than those of the corresponding enantiomerically pure forms. For stereoisomeric examples, we have successfully explained the differences in melting temperatures in light of the corresponding structural data. Chirality should therefore be taken into account as a highly attractive design vector in the preparation of ILs with specifically desired properties.
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Affiliation(s)
- Nicolás Ríos-Lombardía
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Biotecnología de Asturias, Universidad de Oviedo, 33071 Oviedo, Spain
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42
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Dobbs W, Heinrich B, Bourgogne C, Donnio B, Terazzi E, Bonnet ME, Stock F, Erbacher P, Bolcato-Bellemin AL, Douce L. Mesomorphic imidazolium salts: new vectors for efficient siRNA transfection. J Am Chem Soc 2010; 131:13338-46. [PMID: 19715309 DOI: 10.1021/ja903028f] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The preparation of chloride (1(n)) and bromide (2(n)) derivatives of 1-methyl-3-[3,4-bis(alkoxy)benzyl]-4H-imidazolium with n = 6, 12, 16, 18 is described. The two series of salts possess a rich thermotropic mesomorphism, chain-length dependent. Thus, a lamellar smectic A phase, a bicontinuous cubic Ia3d phase, and a columnar hexagonal liquid crystalline mesophase are induced as a function of increasing chain length. The mesomorphic properties were studied by polarizing optical microscopy, differential scanning calorimetry, and X-ray diffraction, and with the support of dilatometry and molecular dynamics, models for the various supramolecular arrangements of the salts are proposed. Such cationic amphiphiles were expected to be candidate molecules to design a new delivery reagent for nucleic acid transfection, particularly for short interfering RNA (siRNA). The use of an RNA interference mechanism, by introduction into cells by transfection of chemically synthesized siRNAs, is a powerful method for gene silencing studies. To exploit the potential of these amphilic imidazolium salts, these molecules were formulated with cohelper lipids and tested for their efficacy to deliver active siRNAs. Our results show high transfection efficacy of our formulated compounds and high silencing efficiency with more than 80% inhibition of the targeted gene at 10 nM siRNA concentration. Taken together our results show the potency of amphiphilic imidazolium salts as a new generation of transfection reagents for RNA interference.
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Affiliation(s)
- William Dobbs
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, CNRS-Université de Strasbourg, BP 43, 23 rue du Loess, F-67034 Strasbourg Cedex 2, France
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43
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Wiggins KM, Kerr RL, Chen Z, Bielawski CW. Retracted article: Design, synthesis, and study of benzobis- and bibenz(imidazolium)-based ionic liquid crystals. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm00417k] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Dobbs W, Douce L, Heinrich B. 1-(4-Alkyloxybenzyl)-3-methyl-1H-imidazol-3-ium organic backbone: a versatile smectogenic moiety. Beilstein J Org Chem 2009; 5:62. [PMID: 20300460 PMCID: PMC2839789 DOI: 10.3762/bjoc.5.62] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2009] [Accepted: 10/08/2009] [Indexed: 12/03/2022] Open
Abstract
The merger of ionic liquid and liquid crystal fields, obtained by using the imidazolium ring as a common element, has allowed us to tailor a new set of materials which associate specific functionalities. These functionalities are consequences of the original properties of the component, ionic liquids, liquid crystals and their association in a single compound. The study of this interesting association led us to elaborate environment-flexible cationic architectures from which mesomorphic properties emerge. Moreover, we have also explored the influence of different anions on the mesomorphic properties.
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Affiliation(s)
- William Dobbs
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, CNRS-Université de Strasbourg, BP 43, 23 rue du Loess, F-67034 Strasbourg Cedex 2, France.
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45
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Kohnen G, Tosoni M, Tussetschläger S, Baro A, Laschat S. Counterion Effects on the Mesomorphic Properties of Chiral Imidazolium and Pyridinium Ionic Liquids. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900730] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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46
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47
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48
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Synthesis and thermotropic liquid crystalline properties of heterogemini surfactants containing a quaternary ammonium and a hydroxyl group. J Colloid Interface Sci 2009; 331:476-83. [DOI: 10.1016/j.jcis.2008.11.056] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2008] [Revised: 11/14/2008] [Accepted: 11/15/2008] [Indexed: 11/20/2022]
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49
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Causin V, Saielli G. Effect of asymmetric substitution on the mesomorphic behaviour of low-melting viologen salts of bis(trifluoromethanesulfonyl)amide. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b915559g] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Huang RTW, Wang WC, Yang RY, Lu JT, Lin IJB. Liquid crystals of gold(I) N-heterocyclic carbene complexes. Dalton Trans 2009:7121-31. [DOI: 10.1039/b907171g] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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