1
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Mixing behavior of 1-Ethyl-3-methylimidazolium Bis(trifluoromethylsulfonyl)imide and 1-Ethyl-3-methylimidazolium tetrafluoroborate binary ionic liquids mixtures. Chem Phys 2023. [DOI: 10.1016/j.chemphys.2023.111858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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2
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Abdulla HM, Gangwar P, Sajith PK, Ramachandran CN. Probing the Interaction of NO with C 60: Comparison between Endohedral and Exohedral Complexes. J Phys Chem A 2023; 127:3598-3607. [PMID: 37051864 DOI: 10.1021/acs.jpca.3c00381] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Recent advances in synthetic methodologies have opened new strategies for synthesizing stable metal-free electron spin systems based on fullerenes. Introducing nitric oxide (NO) inside a fullerene cage is one of the methods to attain this goal. In the present study, dispersion corrected density functional theory (B3LYP-D3) has been used to evaluate the structure, stability, and electronic properties of NO encapsulated fullerene NO@C60 and compared those with its exohedral fullerene NO.C60 analog. The calculated stabilization energy for NO@C60 is appreciably higher than NO.C60, and this difference is comprehended via the Quantum theory of atoms in molecules (QTAIM) and noncovalent interaction (NCI) topological analyses. The delocalization of electron density of NO and the C60 cage in NO@C60 is discussed using electrostatic potential analysis. In addition, an attempt has been made to understand the different locations and orientations involving the interaction of two NO radicals and the fullerene C60. It is shown that the encapsulation of the NO dimer inside the C60 cage is an energetically unfavorable process. On the other hand, stable structures are obtained upon the physisorption of other NO on the surface of NO@C60 and NO.C60. The present work provides an in-depth understanding of the interaction of NO and C60 fullerene, its preferable position, and its orientation in both endohedral and exohedral complexes.
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Affiliation(s)
| | - Peaush Gangwar
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Pookkottu K Sajith
- Department of Chemistry, Farook College, Kozhikode, Kerala 673632, India
| | - C N Ramachandran
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
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3
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Jiang Y, Xu X, Wang M, Zhou Y, Wang Z. Comparative study of the hydrogen bonding interactions between ester-functionalized/non-functionalized imidazolium-based ionic liquids and DMSO. Phys Chem Chem Phys 2023; 25:8789-8798. [PMID: 36912196 DOI: 10.1039/d2cp05048j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
There have been some studies on the microscopic properties of ester-functionalized ionic liquids (ILs), but the microscopic properties of their mixtures with co-solvents have seldom been reported. In practical applications, ILs are usually used together with co-solvents. Therefore, it is very important to study the microstructure of ester-functionalized ILs and co-solvents. In this work, the hydrogen bonding interactions between ester-functionalized IL 1-acetoxyethyl-3-methylimidazolium tetrafluoroborate (AOEMIMBF4) and DMSO were studied using spectroscopic methods and quantum chemical calculations. Non-functionalized IL 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4) and DMSO were used for comparison. The results indicate that (1) by adding DMSO, the hydrogen bonding interactions of ν(C2-H) were enhanced, and DMSO could form hydrogen bonds with anions and cations simultaneously. (2) The incorporation of an ester group could enhance the hydrogen bonding interactions. (3) Both the stretching vibration of C2-H and CO indicated changes in the microscopic structure: AOEMIMBF4 ion clusters first interacted with DMSO, then broke into AOEMIMBF4-DMSO complexes and finally existed as [AOEMIM]+/[BF4]--DMSO complexes.
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Affiliation(s)
- Yuxin Jiang
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, College of Chemistry and Chemical Engineering, Instrumental Analysis Center of Qingdao University, Qingdao University, Qingdao 266071, China.
| | - Xianzhen Xu
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, College of Chemistry and Chemical Engineering, Instrumental Analysis Center of Qingdao University, Qingdao University, Qingdao 266071, China.
| | - Mingzhu Wang
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, College of Chemistry and Chemical Engineering, Instrumental Analysis Center of Qingdao University, Qingdao University, Qingdao 266071, China.
| | - Yu Zhou
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, College of Chemistry and Chemical Engineering, Instrumental Analysis Center of Qingdao University, Qingdao University, Qingdao 266071, China.
| | - Zonghua Wang
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, College of Chemistry and Chemical Engineering, Instrumental Analysis Center of Qingdao University, Qingdao University, Qingdao 266071, China.
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4
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Decontamination of Enoxacin containing Aqueous Phase through Hydrophobic Deep Eutectic Solvents: Solvent Regeneration and Quantum Chemical Insights. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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5
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Self-Healing Hydrogels: Development, Biomedical Applications, and Challenges. Polymers (Basel) 2022; 14:polym14214539. [PMID: 36365532 PMCID: PMC9654449 DOI: 10.3390/polym14214539] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/19/2022] [Accepted: 10/23/2022] [Indexed: 11/22/2022] Open
Abstract
Polymeric hydrogels have drawn considerable attention as a biomedical material for their unique mechanical and chemical properties, which are very similar to natural tissues. Among the conventional hydrogel materials, self-healing hydrogels (SHH) are showing their promise in biomedical applications in tissue engineering, wound healing, and drug delivery. Additionally, their responses can be controlled via external stimuli (e.g., pH, temperature, pressure, or radiation). Identifying a suitable combination of viscous and elastic materials, lipophilicity and biocompatibility are crucial challenges in the development of SHH. Furthermore, the trade-off relation between the healing performance and the mechanical toughness also limits their real-time applications. Additionally, short-term and long-term effects of many SHH in the in vivo model are yet to be reported. This review will discuss the mechanism of various SHH, their recent advancements, and their challenges in tissue engineering, wound healing, and drug delivery.
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6
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Yue K, Doherty B, Acevedo O. Comparison between Ab Initio Molecular Dynamics and OPLS-Based Force Fields for Ionic Liquid Solvent Organization. J Phys Chem B 2022; 126:3908-3919. [PMID: 35594504 DOI: 10.1021/acs.jpcb.2c01636] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OPLS-based force fields (FFs) have been shown to provide accurate bulk-phase properties for a wide variety of imidazolium-based ionic liquids (ILs). However, the ability of OPLS to reproduce an IL solvent structure is not as well-validated given the relative lack of high-level theoretical or experimental data available for comparison. In this study, ab initio molecular dynamics (AIMD) simulations were performed for three widely used ILs: the 1-butyl-3-methylimidazolium cation with chloride, tetrafluoroborate, or hexafluorophosphate anions, that is, [BMIM][Cl], [BMIM][BF4], and [BMIM][PF6], respectively, as a basis for further assessment of two unique IL FFs: the ±0.8 charge-scaled OPLS-2009IL FF and the OPLS-VSIL FF. The OPLS-2009IL FF employs a traditional all-atom functional form, whereas the OPLS-VSIL FF was developed using a virtual site that offloads negative charge to inside the plane of the ring with careful attention given to reproducing hydrogen bonding. Detailed comparisons between AIMD and the OPLS FFs were made based on radial distribution functions (RDFs), combined distribution functions (CDFs), and spatial distribution functions (SDFs) to examine cation-anion interactions and π+-π+ stacking between the imidazolium rings. While both FFs were able to correctly capture the general solvent structure of these popular ILs, the OPLS-VSIL FF quantitatively reproduced interaction distances more accurately. In addition, this work provides further insights into the different short- and long-range structure patterns of these popular ILs.
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Affiliation(s)
- Kun Yue
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
| | - Brian Doherty
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
| | - Orlando Acevedo
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
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7
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Li L, Lin J, Fu F, Dai Z, Zhou G, Yang Z. Molecular-Level Understanding of Surface Roughness Boosting Segregation Behavior at the ZIF-8/Ionic Liquid Interfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:4175-4187. [PMID: 35349284 DOI: 10.1021/acs.langmuir.1c02922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Here, we perform a series of classical molecular dynamics simulations for two different [HEMIM][DCA] and [BMIM][BF4] ionic liquids (ILs) on the ZIF-8 surface to explore the interfacial properties of metal-organic framework (MOFs)/IL composite materials at the molecular level. Our simulation results reveal that the interfacial structures of anions and cations on the ZIF-8 surface are dominated by the surface roughness due to the steric hindrance, which is extremely different from the driving mechanism based on solid-ion interactions of ILs on flat solid surfaces. At the ZIF-8/IL interfaces, the open sodalite (SOD) cages of the ZIF-8 surface can block most of the large-size cations outside and significantly boost the segregation behavior of anions and cations. In comparison with the [BMIM][BF4] IL, the [HEMIM][DCA] IL has much more anions entering into the open SOD cages owing to the combination of stronger ZIF-8-[DCA]- interactions and more ordered arrangement of [DCA]- anions on the ZIF-8 surface. Furthermore, more and stronger ZIF-8-[BF4]- hydrogen bonds (HBs) are found to exist on the cage edges than the ZIF-8-[DCA]- HBs, further preventing [BF4]- anions from entering into SOD cages. By more detailed analyses, we find that the hydrophobic interaction has an important influence on the interfacial structures of the side chains of [HEMIM]+ and [BMIM]+ cations, while the π-π stacking interaction plays a key role in determining the interfacial structures of the imidazolium rings of both cations. Our simulation results in this work provide a molecular-level understanding of the underlying driving mechanism on segregation behavior at the ZIF-8/IL interfaces.
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Affiliation(s)
- Li Li
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People's Republic of China
| | - Jie Lin
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People's Republic of China
| | - Fangjia Fu
- School of Mathematical Sciences, Peking University, Beijing 100871, People's Republic of China
| | - Zhongyang Dai
- National Supercomputing Center in Shenzhen, Shenzhen 518055, People's Republic of China
| | - Guobing Zhou
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People's Republic of China
| | - Zhen Yang
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People's Republic of China
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8
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Endo T, Sunada K, Sumida H, Kimura Y. Origin of low melting point of ionic liquids: dominant role of entropy. Chem Sci 2022; 13:7560-7565. [PMID: 35872823 PMCID: PMC9241968 DOI: 10.1039/d2sc02342c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 06/07/2022] [Indexed: 11/21/2022] Open
Abstract
Large structural entropy makes salts liquid at room temperature.
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Affiliation(s)
- Takatsugu Endo
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, 1-3 Tatara Miyakodani, Kyotanabe, Kyoto 610-0394, Japan
| | - Kouki Sunada
- Department of Applied Chemistry, Graduate School of Science and Engineering, Doshisha University, 1-3 Tatara Miyakodani, Kyotanabe, Kyoto 610-0394, Japan
| | - Hiroki Sumida
- Department of Applied Chemistry, Graduate School of Science and Engineering, Doshisha University, 1-3 Tatara Miyakodani, Kyotanabe, Kyoto 610-0394, Japan
| | - Yoshifumi Kimura
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, 1-3 Tatara Miyakodani, Kyotanabe, Kyoto 610-0394, Japan
- Department of Applied Chemistry, Graduate School of Science and Engineering, Doshisha University, 1-3 Tatara Miyakodani, Kyotanabe, Kyoto 610-0394, Japan
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9
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Torkzadeh M, Moosavi M. DFT and COSMO-RS studies on dicationic ionic liquids (DILs) as potential candidates for CO 2 capture: the effects of alkyl side chain length and symmetry in cations. RSC Adv 2022; 12:35418-35435. [DOI: 10.1039/d2ra05805g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 11/25/2022] [Indexed: 12/13/2022] Open
Abstract
The weaker interaction energy between anions and cations, the stronger interaction of a CO2 molecule with the cation. Also, the selectivity of CO2 from H2, CO and CH4 gases decreases slightly with increasing the length of side alkyl chains.
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Affiliation(s)
- Mehrangiz Torkzadeh
- Department of Physical Chemistry, Faculty of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran
| | - Majid Moosavi
- Department of Physical Chemistry, Faculty of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran
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10
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Mishra DK, Gopakumar G, Pugazhenthi G, Siva Brahmmananda Rao CV, Nagarajan S, Banerjee T. Molecular and Spectroscopic Insights into a Metal Salt-Based Deep Eutectic Solvent: A Combined Quantum Theory of Atoms in Molecules, Noncovalent Interaction, and Density Functional Theory Study. J Phys Chem A 2021; 125:9680-9690. [PMID: 34710329 DOI: 10.1021/acs.jpca.1c07809] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Deep eutectic solvents (DESs) based on metal halide salts are highly catalytic, low toxic, reusable, cost-effective, and have higher thermal stability than their analogue ionic liquids (ILs). In this work, we have reported the formation mechanism of metal salt-based DESs at the molecular level along with their charge-transfer analysis and thermodynamics associated with their formation using density functional theory. The DES systems analyzed in the present work were choline chloride and tin(II)chloride (DES1) and choline chloride and zinc(II)chloride (DES2), both in a molar ratio of 1:2, respectively. An excellent correlation is obtained between the theoretically calculated IR spectra of the DES systems and the previously reported experimental findings for the formation of the complex systems. The DESs were found to be stable systems due to traditional hydrogen bonding and electrostatic interactions resulting in the ionic species [Sn2Cl5]- and [Zn2Cl5]- and are elucidated with the help of electronic structure calculations. CHELPG partial charge analysis and natural bond orbital analysis suggest a charge transfer from Cl- (chloride) to Ch+ (choline) and metal salts in the DES structures. The atom-in-molecules and noncovalent interaction (NCI) analysis suggest a strong electrostatic interaction within the DES2 system as compared to DES1. Higher stability and reactivity are observed in the DES2 system based on the frontier molecular orbital analysis. Our analysis offers important insights into the formation mechanism of these economic IL analogues.
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Affiliation(s)
- Dhirendra Kumar Mishra
- Department of Chemical Engineering, Indian Institute of Technology, Guwahati 781039, Assam, India
| | - Gopinadhanpillai Gopakumar
- Fuel Chemistry Division, Materials Chemistry and Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India
| | - Gopal Pugazhenthi
- Department of Chemical Engineering, Indian Institute of Technology, Guwahati 781039, Assam, India
| | - Cherukuri Venkata Siva Brahmmananda Rao
- Fuel Chemistry Division, Materials Chemistry and Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India.,Homi Bhabha National Institute, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India
| | - Sivaraman Nagarajan
- Fuel Chemistry Division, Materials Chemistry and Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India.,Homi Bhabha National Institute, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India
| | - Tamal Banerjee
- Department of Chemical Engineering, Indian Institute of Technology, Guwahati 781039, Assam, India
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11
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Chen H, Wang Z, Zhao P, Xu X, Gong S, Yu Z, Zhou Y. Comparative study of the hydrogen bonding properties between bis(fluorosulfonyl)imide/bis(trifluoromethyl)sulfonylimide-based ether-functionalized ionic liquids and methanol. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115333] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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12
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Mamontov E, Osti NC, Ryder MR. Order-disorder in room-temperature ionic liquids probed via methyl quantum tunneling. STRUCTURAL DYNAMICS (MELVILLE, N.Y.) 2021; 8:024303. [PMID: 33834086 PMCID: PMC8024031 DOI: 10.1063/4.0000094] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
Room-temperature ionic liquids are promising candidates for applications ranging from electrolytes for energy storage devices to lubricants for food and cellulose processing to compounds for pharmaceutics, biotransformation, and biopreservation. Due to the ion complexity, many room-temperature ionic liquids readily form amorphous phases upon cooling, even at modest rates. Here, we investigate two commonly studied imidazolium-based room-temperature ionic liquids, 1-ethyl-3-methylimidazolium tetrafluoroborate and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, as well as their mixtures, to demonstrate how the complex interplay between the crystalline and amorphous phases is affected by the processing conditions, such as thermal history, liquid mixing, and applied pressure. We show that quantum tunneling in the cation methyl groups, measured by high-resolution inelastic neutron scattering, can be used to probe the order-disorder in room-temperature ionic liquids (crystalline vs amorphous state) that develops as a result of variable processing conditions.
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Affiliation(s)
| | - Naresh C. Osti
- Authors to whom correspondence should be addressed:; ; and
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13
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Abstract
The extent to which cations and anions in ionic liquids (ILs) and ionic liquid solutions are dissociated is of both fundamental scientific interest and practical importance because ion dissociation has been shown to impact viscosity, density, surface tension, volatility, solubility, chemical reactivity, and many other important chemical and physical properties. When mixed with solvents, ionic liquids provide the unique opportunity to investigate ion dissociation from infinite dilution in the solvent to a completely solvent-free state, even at ambient conditions. The most common way to estimate ion dissociation in ILs and IL solutions is by comparing the molar conductivity determined from ionic conductivity measurements such as electrochemical impedance spectroscopy (EIS) (which measure the movement of only the charged, i.e., dissociated, ions) with the molar conductivity calculated from ion diffusivities measured by pulse field gradient nuclear magnetic resonance spectroscopy (PFG-NMR, which gives movement of all of the ions). Because the NMR measurements are time-consuming, the number of ILs and IL solutions investigated by this method is relatively limited. We have shown that use of the Stokes-Einstein equation with estimates of the effective ion Stokes radii allows ion dissociation to be calculated from easily measured density, viscosity, and ionic conductivity data (ρ, η, λ), which is readily available in the literature for a much larger number of pure ILs and IL solutions. Therefore, in this review, we present values of ion dissociation for ILs and IL solutions (aqueous and nonaqueous) determined by both the traditional molar conductivity/PFG-NMR method and the ρ, η, λ method. We explore the effect of cation and anion alkyl chain length, structure, and interaction motifs of the cation and anion, temperature, and the strength of the solvent in IL solutions.
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Affiliation(s)
- Oscar Nordness
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, United States
| | - Joan F Brennecke
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, United States
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14
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A comparison of ether- and alkyl-imidazolium-based ionic liquids diluted with CH3CN: A combined FTIR and DFT study. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113542] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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15
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Study on the interactions between [BMIM][SCN] and naphtalene/dibenzothiophene: A theory-experiment comparison. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127846] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Panja SK. Influence of Anion on Physical and Electronic Property of Imidazolium Ionic Liquids: Role of Weak Interactions. ChemistrySelect 2020. [DOI: 10.1002/slct.201904781] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Sumit K. Panja
- Department of ChemistryUka Tarsadia University, Maliba Campus, Gopal Vidyanagar, Bardoli Mahuva Road, Surat 394350 Gujrat India
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18
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Zhou Y, Gong S, Xu X, Yu Z, Kiefer J, Wang Z. The interactions between polar solvents (methanol, acetonitrile, dimethylsulfoxide) and the ionic liquid 1-ethyl-3-methylimidazolium bis(fluorosulfonyl)imide. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112159] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Zhou Y, Xu X, Wang Z, Gong S, Chen H, Yu Z, Kiefer J. The effect of introducing an ether group into an imidazolium-based ionic liquid in binary mixtures with DMSO. Phys Chem Chem Phys 2020; 22:15734-15742. [DOI: 10.1039/d0cp01568g] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Combined DFT and FTIR investigations reveal interesting hydrogen bonding interactions between dimethyl sulfoxide and an ether-functionalized imidazolium-based ionic liquid.
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Affiliation(s)
- Yu Zhou
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials
- College of Chemistry and Chemical Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Xianzhen Xu
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials
- College of Chemistry and Chemical Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Zonghua Wang
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials
- College of Chemistry and Chemical Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Shida Gong
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials
- College of Chemistry and Chemical Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Hong Chen
- Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials
- College of Chemistry and Chemical Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Zhiwu Yu
- MOE Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology
- Tsinghua University
- Beijing 100084
- China
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Valadbeigi Y, Gal JF. Assessment of the nature of interactions of cations with cycloheptatriene derivatives using change in the aromaticity: Comparison with electron density and NBO results. Mol Phys 2019. [DOI: 10.1080/00268976.2019.1662507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Younes Valadbeigi
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Jean-François Gal
- CNRS, Institut de Chimie de Nice, UMR 7272, Université Côte d’Azur, Nice, France
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Koverga VA, Smortsova Y, Miannay FA, Kalugin ON, Takamuku T, Jedlovszky P, Marekha B, Cordeiro MNDS, Idrissi A. Distance Angle Descriptors of the Interionic and Ion-Solvent Interactions in Imidazolium-Based Ionic Liquid Mixtures with Aprotic Solvents: A Molecular Dynamics Simulation Study. J Phys Chem B 2019; 123:6065-6075. [PMID: 31179700 DOI: 10.1021/acs.jpcb.9b03838] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The aim of this paper is to quantify the changes of the interionic and ion-solvent interactions in mixtures of imidazolium-based ionic liquids, having tetrafluoroborate (BmimBF4), hexafluorophosphate (BmimPF6), trifluoromethylsulfonate (BmimTFO), or bis(trifluoromethanesulfonyl)imide (BmimTFSI), anions, and polar aprotic molecular solvents, such as acetonitrile (AN), γ-butyrolactone (GBL), and propylene carbonate (PC). For this purpose, we calculate, using the nearest-neighbor approach, the average distance between the imidazolium ring H atom in positions 2, 4, and 5 (H2,4,5) and the nearest high-electronegativity atom of the solvent or anion (X) as distance descriptors, and the mean angle formed by the C2,4,5-H2,4,5 bond and the H2,4,5···X axis around the H2,4,5 atom as angular descriptors of the cation-anion and cation-solvent interactions around the ring C-H groups. The behavior of these descriptors as a function of the ionic liquid mole fraction is analyzed in detail. The obtained results show that the extent of the change of these descriptors with respect to their values in the neat ionic liquid depends both on the nature of the anion and on the mixture composition. Thus, in the case of the mixtures of the molecular solvents with BmimBF4 and BmimTFO, a small change of the distance and a drastic increase of the angular descriptor corresponding to the cation-anion interactions are observed with decreasing mole fraction of the ionic liquid, indicating that the anion moves from the above/below position (with respect to the imidazolium ring plane) to a position that is nearly linearly aligned with the C2-H2 bond and hinders the possible interaction between the C2-H2 group and the solvent molecules. On the other hand, in the case of mixtures of BmimTFSI and BmimPF6 with the molecular solvents, both the observed increase of the distance descriptor and the slight change of the angular descriptor with decreasing ionic liquid mole fraction are compatible with the direct interactions of the solvent with the C2-H2 group. The behavior of these descriptors is correlated with the experimentally observed 1H chemical shift of the C2-H2 group and the red shift of the C2-H2 vibrational mode, particularly at low ionic liquid mole fractions. The present results are thus of great help in interpreting these experimental observations.
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Affiliation(s)
- Volodymyr A Koverga
- Univ. Lille, CNRS, UMR 8516-LASIR-Laboratoire de Spectrochimie Infrarouge et Raman , F-59000 Lille , France.,Department of Inorganic Chemistry , V.N. Karazin Kharkiv National University , Svoboda sq. 4 , Kharkiv 61022 , Ukraine.,LAQV@REQUIMTE, Faculty of Sciences, Department of Chemistry and Biochemistry , University of Porto , Rua do Campo Alegre , 4169-007 Porto , Portugal
| | - Yevheniia Smortsova
- Univ. Lille, CNRS, UMR 8516-LASIR-Laboratoire de Spectrochimie Infrarouge et Raman , F-59000 Lille , France
| | - François Alexandre Miannay
- Univ. Lille, CNRS, UMR 8516-LASIR-Laboratoire de Spectrochimie Infrarouge et Raman , F-59000 Lille , France
| | - Oleg N Kalugin
- Department of Inorganic Chemistry , V.N. Karazin Kharkiv National University , Svoboda sq. 4 , Kharkiv 61022 , Ukraine
| | - Toshiyuki Takamuku
- Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering , Saga University , Honjo-machi, Saga 840-8502 , Japan
| | - Pal Jedlovszky
- Department of Chemistry , Eszterházy Károly University , Leányka utca 6 , H-3300 Eger , Hungary
| | - Bogdan Marekha
- Molecular Spectroscopy Department , Max Planck Institute for Polymer Research , 10 Ackermannweg , 55128 Mainz , Germany
| | - M Natalia D S Cordeiro
- LAQV@REQUIMTE, Faculty of Sciences, Department of Chemistry and Biochemistry , University of Porto , Rua do Campo Alegre , 4169-007 Porto , Portugal
| | - Abdenacer Idrissi
- Univ. Lille, CNRS, UMR 8516-LASIR-Laboratoire de Spectrochimie Infrarouge et Raman , F-59000 Lille , France
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22
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Moosavi M, Banazadeh N, Torkzadeh M. Structure and Dynamics in Amino Acid Choline-Based Ionic Liquids: A Combined QTAIM, NCI, DFT, and Molecular Dynamics Study. J Phys Chem B 2019; 123:4070-4084. [DOI: 10.1021/acs.jpcb.9b01799] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Majid Moosavi
- Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran
| | - Negin Banazadeh
- Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran
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23
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Fakhraee M. Amino acid ionic liquids based on imidazolium-hydroxyl functionalized cation: New insight from molecular dynamics simulations. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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How cationic and anionic portions of an imidazolium-based ionic liquid interact with molecular liquids: Insights from density functional theory calculations. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.12.133] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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25
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Brela MZ, Kubisiak P, Eilmes A. Understanding the Structure of the Hydrogen Bond Network and Its Influence on Vibrational Spectra in a Prototypical Aprotic Ionic Liquid. J Phys Chem B 2018; 122:9527-9537. [PMID: 30239203 DOI: 10.1021/acs.jpcb.8b05839] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Analysis of the hydrogen bond network in aprotic ionic liquid 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (EMIM-TFSI) has been performed based on structures obtained from ab initio or classical molecular dynamics simulations. Statistics of different donor and acceptor atoms and the amount of chelating or bifurcated bonds has been presented. Most of the hydrogen bonds in EMIM-TFSI are formed with oxygen atoms as hydrogen acceptors; and the most probable bifurcated bonds are those with a mixed pair of oxygen and nitrogen acceptors. Spectral graph analysis has shown that the cations may form hydrogen bonds with up to five different anions and the connectivity of the whole hydrogen bond network is supported mainly by H-O bonds. In the structures of the liquid simulated via force field-based dynamics, the number of hydrogen bonds is smaller and fluorine atoms are the most favored hydrogen acceptors. One-dimensional potential energy profiles for hydrogen atom displacements and corresponding vibrational frequencies have been calculated for selected C-H bonds. Individual C-H stretching frequencies vary by 200-300 cm-1, indicating differences in local environment of hydrogen atoms forming C-H···O hydrogen bonds.
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Affiliation(s)
- Mateusz Z Brela
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Kraków , Poland
| | - Piotr Kubisiak
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Kraków , Poland
| | - Andrzej Eilmes
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Kraków , Poland
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26
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Probing effect of weak H-bonding on conformational change in ionic liquid: Experimental and DFT studies. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.07.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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27
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Verma PL, Gejji SP. Unveiling Noncovalent Interactions in Imidazolium, Pyrrolidinium, or Quaternary Ammonium Cation and Acetate Anion Based Protic Ionic Liquids: Structure and Spectral Characteristics. J Phys Chem A 2018; 122:6225-6235. [DOI: 10.1021/acs.jpca.8b04303] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Prakash L. Verma
- Department of Chemistry, Savitribai Phule Pune University, Pune 411 007, India
| | - Shridhar P. Gejji
- Department of Chemistry, Savitribai Phule Pune University, Pune 411 007, India
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28
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Doherty B, Zhong X, Acevedo O. Virtual Site OPLS Force Field for Imidazolium-Based Ionic Liquids. J Phys Chem B 2018; 122:2962-2974. [DOI: 10.1021/acs.jpcb.7b11996] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Brian Doherty
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
| | - Xiang Zhong
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
| | - Orlando Acevedo
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
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29
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Blanco-Díaz EG, Vázquez-Montelongo EA, Cisneros GA, Castrejón-González EO. Computational investigation of non-covalent interactions in 1-butyl 3-methylimidazolium/bis(trifluoromethylsulfonyl)imide [bmim][Tf2N] in EMD and NEMD. J Chem Phys 2018; 148:054303. [DOI: 10.1063/1.5017987] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Edgar G. Blanco-Díaz
- Departamento de Ingeniería Química, Tecnológico Nacional de México en Celaya, Celaya, Guanajuato 38010,
Mexico
| | | | - G. Andrés Cisneros
- Department of Chemistry, University of North Texas, Denton, Texas 76206, USA
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30
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Bottini G, Moyna G. Determining the relative strengths of aromatic and aliphatic C-H⋅⋅⋅X hydrogen bonds in imidazolium ionic liquids through measurement of H/D isotope effects on 19 F nuclear shielding. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2018; 56:103-107. [PMID: 28556991 DOI: 10.1002/mrc.4615] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/11/2017] [Accepted: 05/22/2017] [Indexed: 06/07/2023]
Abstract
The relative strengths of aromatic and aliphatic C-H⋅⋅⋅X hydrogen bonds in imidazolium ionic liquids were investigated through measurement of H/D isotope effects on the 19 F nuclear shielding of deuterated isotopologues of 1-n-butyl-3-methylimidazolium hexafluorophosphate and tetrafluoroborate ([C4 mim]PF6 and [C4 mim]BF4 ). Δ19 F(H,D) values ranging from 9.7 to 49.7 ppb were observed for [C4 mim]PF6 isotopologues, while for the [C4 mim]BF4 series these went from 26.2 to 83.8 ppb. Our findings indicate that the interactions between the fluorinated anions and protons on the C-1' and C-1″ position of the N-alkyl sidechains are comparable to, and in some cases stronger than, those involving protons on the aromatic ring, underscoring the role that these weak interionic forces have on the local ordering of imidazolium salts in the liquid state. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Gualberto Bottini
- Departamento de Química del Litoral, CENUR Litoral Norte, Universidad de la República, Ruta 3 Km 363, Paysandú, 60000, Uruguay
| | - Guillermo Moyna
- Departamento de Química del Litoral, CENUR Litoral Norte, Universidad de la República, Ruta 3 Km 363, Paysandú, 60000, Uruguay
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31
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Verma PL, Gejji SP. Electronic structure, spectral characteristics and physicochemical properties of linear, branched and cyclic alkyl group substituted 1-alkyl-3-butylimidazolium cation based ionic liquids. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.12.040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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32
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Cascão J, Silva W, Ferreira ASD, Cabrita EJ. Ion pair and solvation dynamics of [Bmim][BF 4 ] + water system. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2018; 56:127-139. [PMID: 29049867 DOI: 10.1002/mrc.4673] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 10/05/2017] [Accepted: 10/09/2017] [Indexed: 06/07/2023]
Abstract
In this work, 1-butyl-3-methylimidazolium tetrafluoroborate/water mixtures were analysed over the whole water composition (xw ) in order to study the rotational and translational behaviour of the ions. We employed a multinuclear NMR approach to determine anion/cation/water diffusion coefficients and longitudinal relaxation rates at different water content. In neat ionic liquids (IL), the cation diffuses faster than the anion, and at low xw , anions and cations share almost the same diffusion coefficient, but above a critical water concentration, the anion begins to diffuse faster than the cation. We identified this composition as approximately 10% xw where the ions share the same diffusion coefficient. We found that the water at this composition seems to have a much more dramatic effect in the rotational diffusion of the anion that decreases substantially and approaches that of the anion in the diluted IL. Translational and rotational dynamics of the ions suggest that water is first incorporated in pockets in the nanostructure of the IL allowing the ions to maintain most of the cation/anion interactions present in neat IL but already disrupting some anion/cation interactions due to preferential interaction with the anion. HOESY and NOESY data show that water displays contacts both with the cation and the anion in a positive NOE regime in contrary to the negative regime found for the cation/anion and cation/cation cross-relaxation. This is in accordance with the high relative diffusion coefficient of water and suggests that water molecules can exchange between preferential location sites that allow water to maintain contacts both with the anion and cation.
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Affiliation(s)
- João Cascão
- UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. Da República, EAN, 2780-157, Oeiras, Portugal
| | - Wagner Silva
- UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
| | - Ana S D Ferreira
- UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
| | - Eurico J Cabrita
- UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
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33
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Vidal-Vidal Á, Faza ON, Silva López C. CO 2 Complexes with Five-Membered Heterocycles: Structure, Topology, and Spectroscopic Characterization. J Phys Chem A 2017; 121:9118-9130. [PMID: 29052989 DOI: 10.1021/acs.jpca.7b09394] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In a first step toward the rational design of macrocyclic structures optimized for CO2 capture, we systematically explored the potential of 30 five-membered aromatic heterocycles to establish coordinating complexes with this pollutant. The interactions between the two moieties were studied in several orientations, and the obtained complexes were analyzed in terms of electron density and vibrational fingerprint. The former is an aid to provide an in-depth knowledge of the interaction, whereas the latter should help to select structural motifs that have not only good complexation properties but also diagnostic spectroscopic signals.
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Affiliation(s)
- Ángel Vidal-Vidal
- Departamento de Quı́mica Orgánica, Universidade de Vigo , Campus Lagoas-Marcosende, 36310 Vigo, Spain
| | - Olalla Nieto Faza
- Departamento de Quı́mica Orgánica, Facultade de Ciencias, Universidade de Vigo , Campus As Lagoas, 32004 Ourense, Spain
| | - Carlos Silva López
- Departamento de Quı́mica Orgánica, Universidade de Vigo , Campus Lagoas-Marcosende, 36310 Vigo, Spain
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34
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Molecular interactions between 1-butyl-3-methylimidazolium tetrafluoroborate and model naphthenic acids: A DFT study. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.08.061] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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Vovchynskyi IS, Kolesnik YV, Filatov YI, Kalugin ON. Molecular modelling on solutions of 1-1′-spirobipirrolidinium tetrafluoroborate in acetonitrile. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.12.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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36
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Marekha BA, Kalugin ON, Bria M, Takamuku T, Gadžurić S, Idrissi A. Competition between Cation-Solvent and Cation-Anion Interactions in Imidazolium Ionic Liquids with Polar Aprotic Solvents. Chemphyschem 2017; 18:718-721. [DOI: 10.1002/cphc.201601445] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Bogdan A. Marekha
- CERMN, FR CNRS 3038, INC3M, SF 4206 ICORE; Normandie Univ.; UNICAEN; Bd Becquerel 14000 Caen France
| | - Oleg N. Kalugin
- Department of Inorganic Chemistry; V.N. Karazin Kharkiv National University; Svoboda sq. 4 61022 Kharkiv Ukraine
| | - Marc Bria
- CCM RMN; University of Lille-Science and Technology; Bât. C4 59655 Villeneuve d'Ascq France
| | - Toshiyuki Takamuku
- Department of Chemistry and Applied Chemistry; Graduate School of Science and Engineering; Saga University; Honjo-machi Saga 840-8502 Japan
| | - Slobodan Gadžurić
- Faculty of Science, Department of Chemistry, Biochemistry and Environmental Protection; University of Novi Sad; Trg Dositeja Obradovića 3 21000 Novi Sad Serbia
| | - Abdenacer Idrissi
- LASIR (UMR 8516); University of Lille-Science and Technology; Bât. C5 59655 Villeneuve d'Ascq France
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37
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A network approach to unravel correlated ion pair dynamics in protic ionic liquids. The case of triethylammonium nitrate. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.06.094] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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38
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Fakhraee M, Gholami MR. Effect of Anion and Alkyl Side Chain on Structural and Dynamic Features of Ester Functionalized Ionic Liquids: Confirming Nanoscale Organization. J Phys Chem B 2016; 120:11539-11555. [DOI: 10.1021/acs.jpcb.6b08874] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mostafa Fakhraee
- Department of Chemistry, Sharif University of Technology, Tehran 11365-11155, Iran
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39
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Endo T, Hoshino S, Shimizu Y, Fujii K, Nishikawa K. Comprehensive Conformational and Rotational Analyses of the Butyl Group in Cyclic Cations: DFT Calculations for Imidazolium, Pyridinium, Pyrrolidinium, and Piperidinium. J Phys Chem B 2016; 120:10336-10349. [DOI: 10.1021/acs.jpcb.6b07166] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takatsugu Endo
- Faculty
of Natural System, Institute of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Shinpei Hoshino
- Graduate
School of Advanced Integration Science, Chiba University, 1-33
Yayoi-cho, Inage-ku, Chiba-shi, Chiba 263-8522, Japan
| | - Yuichi Shimizu
- Graduate
School of Advanced Integration Science, Chiba University, 1-33
Yayoi-cho, Inage-ku, Chiba-shi, Chiba 263-8522, Japan
| | - Kozo Fujii
- Graduate
School of Advanced Integration Science, Chiba University, 1-33
Yayoi-cho, Inage-ku, Chiba-shi, Chiba 263-8522, Japan
| | - Keiko Nishikawa
- Graduate
School of Advanced Integration Science, Chiba University, 1-33
Yayoi-cho, Inage-ku, Chiba-shi, Chiba 263-8522, Japan
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40
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Marekha BA, Koverga VA, Chesneau E, Kalugin ON, Takamuku T, Jedlovszky P, Idrissi A. Local Structure in Terms of Nearest-Neighbor Approach in 1-Butyl-3-methylimidazolium-Based Ionic Liquids: MD Simulations. J Phys Chem B 2016; 120:5029-41. [PMID: 27192134 DOI: 10.1021/acs.jpcb.6b04066] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Description of the local microscopic structure in ionic liquids (ILs) is a prerequisite to obtain a comprehensive understanding of the influence of the nature of ions on the properties of ILs. The local structure is mainly determined by the spatial arrangement of the nearest neighboring ions. Therefore, the main interaction patterns in ILs, such as cation-anion H-bond-like motifs, cation-cation alkyl tail aggregation, and ring stacking, were considered within the framework of the nearest-neighbor approach with respect to each particular interaction site. We employed classical molecular dynamics (MD) simulations to study in detail the spatial, radial, and orientational relative distribution of ions in a set of imidazolium-based ILs, in which the 1-butyl-3-methylimidazolium (C4mim(+)) cation is coupled with the acetate (OAc(-)), chloride (Cl(-)), tetrafluoroborate (BF4(-)), hexafluorophosphate (PF6(-)), trifluoromethanesulfonate (TfO(-)), or bis(trifluoromethanesulfonyl)amide (TFSA(-)) anion. It was established that several structural properties are strongly anion-specific, while some can be treated as universally applicable to ILs, regardless of the nature of the anion. Namely, strongly basic anions, such as OAc(-) and Cl(-), prefer to be located in the imidazolium ring plane next to the C-H(2/4-5) sites. By contrast, the other four bulky and weakly coordinating anions tend to occupy positions above/below the plane. Similarly, the H-bond-like interactions involving the H(2) site are found to be particularly enhanced in comparison with the ones at H(4-5) in the case of asymmetric and/or more basic anions (C4mimOAc, C4mimCl, C4mimTfO, and C4mimTFSA), in accordance with recent spectroscopic and theoretical findings. Other IL-specific details related to the multiple H-bond-like binding and cation stacking issues are also discussed in this paper. The secondary H-bonding of anions with the alkyl hydrogen atoms of cations as well as the cation-cation alkyl chain aggregation turned out to be poorly sensitive to the nature of the anion.
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Affiliation(s)
- Bogdan A Marekha
- LASIR, University of Lille-Science and Technology (UMR CNRS A8516) , Bâtiment C5, Cité Scientifique, 59655, Villeneuve d'Ascq Cedex, France.,Centre d'Etudes et de Recherche sur le Médicament de Normandie (CERMN), UNICAEN, FR CNRS INC3M , Boulevard Becquerel, Caen, 14032 Cedex, France
| | - Volodymyr A Koverga
- LASIR, University of Lille-Science and Technology (UMR CNRS A8516) , Bâtiment C5, Cité Scientifique, 59655, Villeneuve d'Ascq Cedex, France.,Department of Inorganic Chemistry, V. N. Karazin Kharkiv National University , Svobody Square, 4, Kharkiv, 61022, Ukraine
| | - Erwan Chesneau
- LASIR, University of Lille-Science and Technology (UMR CNRS A8516) , Bâtiment C5, Cité Scientifique, 59655, Villeneuve d'Ascq Cedex, France
| | - Oleg N Kalugin
- Department of Inorganic Chemistry, V. N. Karazin Kharkiv National University , Svobody Square, 4, Kharkiv, 61022, Ukraine
| | - Toshiyuki Takamuku
- Department of Chemistry and Applied Chemistry, Graduate School of Science and Engineering, Saga University , Honjo-machi, Saga 840-8502, Japan
| | - Pál Jedlovszky
- Department of Chemistry, Eszterházy Károly University , Leányka Utca 6, H-3300 Eger, Hungary.,MTA-BME Research Group of Technical Analytical Chemistry, Szent Gellért tér 4, H-1111 Budapest, Hungary
| | - Abdenacer Idrissi
- LASIR, University of Lille-Science and Technology (UMR CNRS A8516) , Bâtiment C5, Cité Scientifique, 59655, Villeneuve d'Ascq Cedex, France
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41
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Zanatta M, Girard AL, Marin G, Ebeling G, dos Santos FP, Valsecchi C, Stassen H, Livotto PR, Lewis W, Dupont J. Confined water in imidazolium based ionic liquids: a supramolecular guest@host complex case. Phys Chem Chem Phys 2016; 18:18297-304. [DOI: 10.1039/c6cp03112a] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Traces of water in some ionic liquids can be regarded as a guest@host supramolecular structure even when diluted in solvents with high dielectric constants.
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Affiliation(s)
- Marcileia Zanatta
- Institute of Chemistry
- UFRGS
- Avenida Bento Gonçalves
- 9500 Porto Alegre
- Brazil
| | - Anne-Lise Girard
- Institute of Chemistry
- UFRGS
- Avenida Bento Gonçalves
- 9500 Porto Alegre
- Brazil
| | - Graciane Marin
- Institute of Chemistry
- UFRGS
- Avenida Bento Gonçalves
- 9500 Porto Alegre
- Brazil
| | - Gunter Ebeling
- Institute of Chemistry
- UFRGS
- Avenida Bento Gonçalves
- 9500 Porto Alegre
- Brazil
| | | | - Chiara Valsecchi
- Institute of Chemistry
- UFRGS
- Avenida Bento Gonçalves
- 9500 Porto Alegre
- Brazil
| | - Hubert Stassen
- Institute of Chemistry
- UFRGS
- Avenida Bento Gonçalves
- 9500 Porto Alegre
- Brazil
| | - Paolo R. Livotto
- Institute of Chemistry
- UFRGS
- Avenida Bento Gonçalves
- 9500 Porto Alegre
- Brazil
| | - William Lewis
- School of Chemistry
- University of Nottingham
- Nottingham
- UK
| | - Jairton Dupont
- Institute of Chemistry
- UFRGS
- Avenida Bento Gonçalves
- 9500 Porto Alegre
- Brazil
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42
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Fakhraee M, Gholami MR. Probing the effects of the ester functional group, alkyl side chain length and anions on the bulk nanostructure of ionic liquids: a computational study. Phys Chem Chem Phys 2016; 18:9734-51. [DOI: 10.1039/c5cp07057k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effects of ester addition on nanostructural properties of biodegradable ILs.
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Affiliation(s)
- Mostafa Fakhraee
- Department of Chemistry
- Sharif University of Technology
- Tehran
- Iran
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43
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Matthews RP, Villar-Garcia IJ, Weber CC, Griffith J, Cameron F, Hallett JP, Hunt PA, Welton T. A structural investigation of ionic liquid mixtures. Phys Chem Chem Phys 2016; 18:8608-24. [DOI: 10.1039/c6cp00156d] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The role of hydrogen bonding, π+–π+ stacking and anion–π+ interactions on the structure of ionic liquid mixtures has been elucidated through a combined theoretical and experimental approach.
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Affiliation(s)
| | | | | | | | - Fiona Cameron
- Department of Chemistry
- Imperial College London
- London
- UK
| | - Jason P. Hallett
- Department of Chemistry
- Imperial College London
- London
- UK
- Department of Chemical Engineering
| | | | - Tom Welton
- Department of Chemistry
- Imperial College London
- London
- UK
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44
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Xue XS, Wang Y, Yang C, Ji P, Cheng JP. Toward Prediction of the Chemistry in Ionic Liquids: An Accurate Computation of Absolute pKa Values of Benzoic Acids and Benzenethiols. J Org Chem 2015; 80:8997-9006. [DOI: 10.1021/acs.joc.5b00693] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiao-Song Xue
- State
Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ya Wang
- State
Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Chen Yang
- State
Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Pengju Ji
- Center
of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jin-Pei Cheng
- State
Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
- Center
of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China
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45
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Marekha BA, Kalugin ON, Bria M, Idrissi A. Probing structural patterns of ion association and solvation in mixtures of imidazolium ionic liquids with acetonitrile by means of relative1H and13C NMR chemical shifts. Phys Chem Chem Phys 2015; 17:23183-94. [DOI: 10.1039/c5cp02748a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Competition between ion solvation and association in mixtures of imidazolium ionic liquids and molecular solvents can be systematically addressed by the analysis of relative chemical shift variation with mixture composition.
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Affiliation(s)
- Bogdan A. Marekha
- University of Lille-Science and Technology
- LASIR (UMR CNRS A8516)
- Villeneuve d'Ascq Cedex
- France
| | - Oleg N. Kalugin
- Department of Inorganic Chemistry
- V.N. Karazin Kharkiv National University
- Kharkiv
- Ukraine
| | - Marc Bria
- University of Lille-Science and Technology
- CCM RMN
- Villeneuve d'Ascq
- France
| | - Abdenacer Idrissi
- University of Lille-Science and Technology
- LASIR (UMR CNRS A8516)
- Villeneuve d'Ascq Cedex
- France
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