Ionic Liquid Cations Research Articles

Insight into the inhibitory roles of ionic liquids in the adsorption of levofloxacin onto clay minerals

The ionic liquids may have an impact on the interactions between fluoroquinolone antibiotics and clay minerals, which are widespread in nature. This work evaluated the adsorption properties of levofloxacin onto three clay minerals (i.e., montmorillonite, vermiculite, and kaolinite) affected by three types of soluble imidazolium-based ionic liquids with different chain lengths of cations ([C2mim]Cl, [C4mim]Cl, and [C6mim]Cl). The results demonstrated that the levofloxacin-binding capacity varied according to clay type (i.e., montmorillonite > vermiculite > kaolinite) regardless of ionic liquids-free or ionic liquids-addition. The observation was made concerning the physical-chemical characteristics of different clay minerals (e.g., physical structure, surface functional groups, specific surface area, and cation exchange capacity). Interestingly, ionic liquids suppressed levofloxacin adsorption on the three test clay minerals because of steric hindrance effects induced by the adsorbed ionic liquids as well as the site competition during co-adsorption of levofloxacin molecules and cations of ionic liquids. Additionally, the inhibitory impacts of ionic liquids in the sequence of [C6mim]Cl > [C4mim]Cl > [C2mim]Cl stemmed from steric hindrance and site competition during co-adsorption of ionic liquids and levofloxacin increased with chain lengths of ionic liquids. Another interesting finding was that the extent of inhibitory effects of [C4mim]Cl increased with the rise of pH values from 5.0 to 9.0, owing to the greater adsorption competition and steric effects derived from more adsorbed [C4mim]+ at higher pH conditions. The findings of this study are critical in assessing the effects of emerging contaminants on the fate of antibiotics in eco-environmental systems.

Ti3C2-MXene ionogel with long-term stability and high sensitivity for wearable piezoresistive sensors

Wearable piezoresistive sensors have attracted tremendous attention recently, which can be applied for health monitoring and human-computer interaction. MXenes, possessing high metallic conductivity and large specific surface area, are often used as the conductive filler in hydrogels and organohydrogels for piezoresistive sensors. However, the environmental instability of MXene composites caused by the easy oxidation of MXene is a long-standing issue which needs to be solved urgently. Herein, taking advantage of phase transfer achieved by cationic surface active ionic liquid 1-vinyl-3-dodecylimidazolium bromide ([VC12Im]Br), we combine Ti3C2Tx with hydrophobic ionic liquid to fabricate Ti3C2-MXene ionogel successfully, which exhibits high compressibility (2.97 MPa), high conductivity (0.908 mS/cm) and long-term stability (40 days). And the wearable piezoresistive sensor based on Ti3C2-MXene ionogel shows rapid response time (100 ms), high sensitivity (6.47 kPa−1) and wide detection range, thus can be used to monitor the tiny movements of human body parts, recognize vocalizations and handwriting. This preparation method develops a new path to fabricate Ti3C2-MXene ionogel with long-term stability and high sensitivity for wearable electronic devices.

Luminescence Enhancement and Temperature Sensing Properties of Hybrid Bismuth Halides Achieved via Tuning Organic Cations

Bismuth-halide-based inorganic-organic hybrid materials (Bi-IOHMs) are desirable in luminescence-related applications due to their advantages such as low toxicity and chemical stability. Herein, two Bi-IOHMs of [Bpy][BiCl4(Phen)] (1, Bpy = N-butylpyridinium, Phen = 1,10-phenanthroline) and [PP14][BiCl4(Phen)]·0.25H2O (2, PP14 = N-butyl-N-methylpiperidinium), containing different ionic liquid cations and same anionic units, have been synthesized and characterized. Single-crystal X-ray diffraction reveals that compounds 1 and 2 crystallize in the monoclinic space group of P21/c and P21, respectively. They both possess zero-dimensional ionic structures and exhibit phosphorescence at room temperature upon excitation of UV light (375 nm for 1, 390 nm for 2), with microsecond lifetime (24.13 μs for 1 and 95.37 μs for 2). Hirshfeld surface analysis has been utilized to visually exhibit the different packing motifs and intermolecular interactions in 1 and 2. The variation in ionic liquids makes compound 2 have a more rigid supramolecular structure than 1, resulting in a significant enhancement in photoluminescence quantum yield (PLQY), that is, 0.68% for 1 and 33.24% for 2. In addition, the ratio of the emission intensities for compounds 1 and 2 shows a correlation with temperature. This work provides new insight into luminescence enhancement and temperature sensing applications involving Bi-IOHMs.

Sulfonated poly(ether ether ketone) membranes for vanadium redox flow battery enabled by the incorporation of ionic liquid‐covalent organic framework complex

AbstractIn vanadium redox flow battery (VRFB). Sulfonated poly(ether ether ketone) (SPEEK) is viewed as a promising alternative to Nafion as a material for vanadium liquid flow battery membrane, due to its low cost and high proton conductivity. However, SPEEK membranes have a Trade‐Off effect of proton conduction and ion selectivity, which limits the performance of VRFB. Here, we exploited the Donnan effect of imidazole cations in ionic liquids (ILs) to improve the ion selectivity of SPEEK membrane. In addition, used porous covalent organic framework materials (COF) with sulfonic acid functional groups to immobilize ionic liquids, which reduced the loss of ILs. The ion selectivity of the SPEEK membrane was further improved. As a result, the cell performance of the composite membrane is improved. At a constant current density of 40 mA cm−2, SPEEK/IL‐5@TpPa‐SO3H‐3 membrane exhibits high coulombic efficiencies (CE: 98.43%) and energy efficiencies (EE: 91.7%). Furthermore, the energy efficiency of the SPEEK/IL‐5@TpPa‐SO3H‐3 membrane decreases only 2.1% after 60 charge/discharge cycles at 100 mA cm−2. Our work proposed a cost‐effective, high‐performance membrane for VRFB.

Relating the Induced Free Charge Density Gradient in a Room-Temperature Ionic Liquid to Molecular-Scale Organization.

We report on dilution-dependent changes in the local environments of chromophores incorporated into room-temperature ionic liquid (RTIL)-molecular solvent binary systems where the ionic liquid cation and molecular solvent possess the same alkyl chain length. We have used the RTIL 1-decyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (DMPyrr+TFSI-) and the molecular solvent 1-decanol. Perylene was used as a non-polar probe, and cresyl violet (CV+) was used as a polar probe chromophore. We observe that in both regions there is a change in the chromophore local environments with increasing 1-decanol content. The changes in the nonpolar regions of the binary RTIL-molecular solvent system occur at a lower 1-decanol concentration than changes in the polar regions. Both chromophores reorient as oblate rotors in this binary system, allowing detailed information on the relative values of the Cartesian components of the rotational diffusion constants to be extracted from the experimental data. The induced free charge density gradient, ρf, known to exist in RTILs, persists to high 1-decanol content (1-decanol mole fraction of 0.75), with the structural details of the gradient being reflected in depth-dependent changes in the Cartesian components of the rotational diffusion constants of CV+. This is the first time that changes in molecular organization have been correlated with ρf.

Application of ionic liquids in CO2 capture and electrochemical reduction: A review

As a new type of green solvent with non-volatility, high thermal stability, high conductivity and various adjustable properties, ionic liquid (IL) has been widely used in the capture and electrochemical reduction of carbon dioxide (CO2). To date, many studies have been made to investigate CO2 capture by using different types of ILs and CO2 electrochemical reduction (CO2ER) with ILs as either electrolyte or other catalytic active components. Some structure–activity relationships between the structure and adsorption or catalytic properties of ILs have been found. Herein, the absorption performances and mechanisms of conventional ILs, amino-functionalized ILs, non-amino functionalized ILs and supported ILs for CO2 capture, as well as the performances and action mechanisms of ILs as the electrolyte, electrolyte additive, and/or electrode modifier in the process of CO2ER are summarized. Many researches indicate that the unique interaction between the anion or cation of IL and CO2 has a significant contribution to promote the absorption and conversion of CO2. However, the ILs used for CO2 capture and electrochemical reduction should be further explored. Especially, a more in-depth investigation of the adsorption and catalytic mechanisms with the help of quantum chemical calculation, molecular simulation, and in situ characterization techniques is necessary. It is expected to design and develop more efficient ILs used for CO2 capture and conversion on a large scale.

Investigation of the extraction ability and mechanism of environmentally friendly ionic liquids for phenol in the model oil

The large number of phenolic compounds contained in coal tar and coal-converted oil seriously increased their cost of processing and transportation difficulties, so methods for efficient separation of phenolic compounds is of great industrial significance. Based on the flexible designability of ionic liquids, hydroxyl functional group that can interact with phenol were introduced into ionic liquid’s cations, eight ionic liquids were synthesized and their separation properties of phenol in model oil (methylbenzene) were studied. Cations of these ionic liquids have a significant influence the phenol extraction efficiency, which follows the order: [Ch]+ > [HEMIM]+. But the anions show a relatively small influence, and the order is: [Pro]- > [Lac]- > [Gly]- > [Ac]-. Other effects such as extraction temperature, molar ratio of phenol to ILs, extraction time and other factors on the extraction efficiency and distribution coefficient were investigated, also the optimum parameters were obtained. Hydroxyl modified ionic liquids showed good extraction performance for phenol, and the choline propionate ionic liquids showed the best separating capacity and were selected as the best extractant. The extraction performance was analyzed by 1H NMR and FT-IR spectra analysis. Hydrogen bond was confirmed to be one of the extraction mechanisms and we found that there was an optimal distance between the cation and anion of ionic liquids to form hydrogen bonds with phenol, also the π-π interaction between imidazole ring and benzene ring in phenol contributed to the extraction. In addition, the ionic liquid showed good recyclability and the regenerated ionic liquids could be reused five times with highly extraction efficiency.

Impact of an Ionic Liquid on Amino Acid Side Chains: A Perspective from Molecular Simulation Studies.

Ionic liquids (ILs) are known to modify the structural stability of proteins. The modification of the protein conformation is associated with the accumulation of ILs around the amino acid (AA) side chains and the nature of interactions between them. To understand the microscopic picture of the structural arrangements of ILs around the AA side chains, room temperature molecular dynamics (MD) simulations have been carried out in this work with a series of hydrophobic, polar and charged AAs in aqueous solutions containing the IL 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM][BF4]) at 2 M concentration. The calculations revealed distinctly nonuniform distribution of the IL components around different AAs. In particular, it is demonstrated that the BMIM+ cations preferentially interact with the aromatic AAs through favorable stacking interactions between the cation imidazolium head groups and the aromatic AA side chains. This results in preferential parallel alignments and enhanced population of the cations around the aromatic AAs. The potential of mean force (PMF) calculations revealed that such favorable stacking interactions provide greater stability to the contact pairs (CPs) formed between the aromatic AAs and the IL cations as compared to the other AAs. It is further quantified that for most of the AAs (except the cationic ones), a favorable enthalpy contribution more than compensates for the entropy cost to form stable CPs with the IL cations. These findings are likely to provide valuable fundamental information toward understanding the effects of ILs on protein conformational stability.

Exploring nucleic acid stability in ionic liquids: Measurements and mechanisms.

The stability and integrity of nucleic acids, DNA and RNA, are vital in biotechnological applications. Conventionally, nucleic acids are stored under refrigeration for short and long-term applications as they are not stable at room temperature. Repeated freeze-thaw cycles are detrimental to the stability of nucleic acids and also remain a cost ineffective way of preservation. Ionic liquids (ILs), composed of organic cations and organic/inorganic anions, are shown to be promising solvent media for preservation of several biomolecules. Previously, we have shown that groove binding of IL cations through combined hydrophobic and polar interactions contribute significantly to the DNA stability.In this work, we attempt to understand the role of different class of ionic liquids in stabilizing DNA through experimental methods and explore their mechanism through molecular dynamic (MD) simulations. The ionic liquids of different class that are chosen involve ethyl ammonium nitrate [EAN] as protic, [BMIM]] [chloride] as a borderline between protic and aprotic, and [BMIM][acetate] as the aprotic IL. We employed UV-visible absorption spectroscopy and CD spectroscopy to investigate the interaction pattern between DNA and ILs and measure the structural integrity. The melting values (Tm) were recorded as a measure of stability. Further, we performed MD simulations and quantum calculations to understand the mechanism of interaction of ILs with DNA. Our findings show the significance of protic IL, [EAN] in stabilizing DNA to a greater extent with highest Tm value and a free energy of stabilization by −10.36 kcal/mol.

Raman Wavelength Conversion in Ionic Liquids

We explore the use of room-temperature ionic liquids (ILs) as Raman wavelength converters. ILs provide an engineerable framework to design suitable liquids for wavelength conversion over a broad spectral range, through careful selection of the molecular structures of the IL anions and cations so that specific characteristics can be obtained, such as a desirable Raman shift, low Brillouin scattering, and good optical transmission in the pump and Stokes wavelengths. Applying such criteria, we demonstrate that 1-ethyl-3-methylimidazolium dicyanamide (EMIM DCA) is an effective medium for conversion of 532-nm pulses from a Q-switched Nd:YAG laser to 603 nm. This corresponds to an approximate 2200 cm−1 shift, which can be used to generate mid-infrared radiation through subsequent difference frequency generation for optical pumping of CO2 lasers. Threefold-higher Raman conversion efficiency is obtained in EMIM DCA compared with water under identical conditions in a proof-of-principle single-pass conversion setup, resulting in an efficient generation of multimillijoule, <6 ns duration, high-quality orange laser pulses in a wavelength region that is difficult to access at high energies. Consequently, we examine ILs representing two other classes of Raman-active functional groups and obtain conversion up to the fifth-order Stokes shift and first anti-Stokes shift. Through the tunable selection of their components and their useful dynamical properties, ILs provide a platform for efficient, simple, and alignment-tolerant high-energy Raman shifting with numerous industrial and technological applications.Received 16 June 2022Accepted 8 December 2022DOI:https://doi.org/10.1103/PhysRevApplied.19.014052© 2023 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasChemical Physics & Physical ChemistryOptical sources & detectorsStimulated Raman scatteringPhysical SystemsIonic fluidsMoleculesOrganic compoundsTechniquesInfrared techniquesAtomic, Molecular & OpticalCondensed Matter, Materials & Applied PhysicsInterdisciplinary Physics

A cationic polymeric interface enabling dendrite-free and highly stable aqueous Zn-metal batteries

Recently, aqueous rechargeable zinc-ion batteries (AZIBs) have attracted much attention owing to their low cost and intrinsic safety. However, the reversibility of AZIBs is limited by dendrite growth on the Zn anode, which leads to low Coulombic efficiency and potential short circuit during cycling. Herein, we develop a new strategy using electrostatic shielding to enable a highly reversible Zn anode. Specifically, a cationic polymeric ionic liquid (PIL) coating layer with a strong positive charge evens out the charge distribution on the surface of the Zn electrode, enabling uniform stripping and deposition of Zn. As a result, a symmetric Zn–Zn cell can sustain stripping-plating for over 2000 h at 1 mA cm−2 with a capacity limit of 1 mAh cm−2, far exceeding the performance of bare Zn electrode. A highly reversible Zn stripping-plating on Cu substrate is also achieved with an average coulombic efficiency of 99.5% over 1100 cycles. PILZ layer can even allow a uniform Zn deposition of up to 30 μm thick, allowing large utilization of the Zn foil. Moreover, the coating layer enables the stable cycling of a MnO2–Zn full cell with a high areal capacity of 1 mAh cm−2.

Studies on the Stability and Deactivation Mechanism of Immobilized Ionic Liquids in Catalytic Esterification Reactions

Solid-supported ionic liquid catalysts (SILs) are the simplest form of a heterogenized ionic liquid and have attracted soaring attention because of the high catalytic activity as well as separation. Unfortunately, instability severely hinders their practical application, and the reason for the deactivation of SILs has not been investigated in detail. In the present study, the immobilized ionic liquid catalysts MIL-101-[IA-SO3H][HSO4] and MIL-101-[IA-COOH][HSO4] were prepared and used to study the stability in the esterification reaction. The results show that compared with MIL-101-[IA-COOH][HSO4], MIL-101-[IA-SO3H][HSO4] has a higher catalytic activity and a lower stability. The deactivation mechanism is discussed based on experiments and theoretical analysis: the protons on -SO3H dissociate in a polar solvent and combine with anion HSO4-, and then, the formative H2SO4 molecule will leach out into the solvent. Our discussion indicates that the stability of immobilized ionic liquids is determined by the substituents of ionic liquid cations and becomes the significant factor controlling the stability limits. The study presented here would be important for understanding the deactivation reason and can help in choosing the suitable cation to avoid leaching of the active site during the reaction.

Force field refinement for reproducing experimental infrared spectra of ionic liquids.

We employ polarizable molecular dynamics simulations with the newly developed FFGenOpt parametrization tool to reproduce IR spectra of several ionic liquid cations and anions in the gas phase. Our results show that polarizable force fields in the bulk phase provide a reasonable compromise between computational effort and accuracy for investigating IR spectra when treating the transition from gas to liquid phase carefully. Although collectivity seems to play only a minor role, the liquid phase not only changes the electrostatic environment of the molecules but also introduces friction and intermolecular interactions altering the IR spectrum significantly. In addition to the classical force field approach, we also tested if the additional computational effort of machine learning potentials justifies their application in reproducing IR spectra. However, the main purpose of this work is to improve the quality of polarizable force fields concerning vibrations and not the prediction of IR spectra which can be better done with quantum-mechanical cluster approaches.

Effect of cation and anion sizes of additive ionic liquid on the crystal structure of poly(vinylidene fluoride) nanofiber

We investigated the additive ionic liquid (IL) type dependence on the crystal structure of poly(vinylidene fluoride) (PVDF) nanofibers. As additive ILs, we used imidazolium based ILs with different cation and anion sizes. From differential scanning calorimetry (DSC) measurements, we found that there is a proper amount for the additive IL to promote PVDF crystallization, and the proper amount is influenced by the cation size, not by the anion size. In addition, it was found that IL itself inhibited the crystallization, but IL can promote crystallization under the presence of DMF.

Polystyrene-supported imidazolium acidic ionic liquids: highly efficient catalysts for the synthesis of bisphenols

Reusable polystyrene-supported ionic liquid catalysts exhibit high catalytic activity for the synthesis of bisphenol compounds. The anions and cations of ionic liquids activate the substrates simultaneously, playing a synergistic catalytic role.

PERFORMANCE EVALUATION OF 1-HEXADECYL-3- METHYLIMIDAZOLIUM BROMIDE, LAURYL GLUCOSIDE AND DECANE IN CREATING WINSOR TYPE-III MICROEMULSION

While ionic liquids are usually high in cost, only small amounts are needed to establish their beneficial characteristics combined with the utilization of a cosurfactant. A cationic surface-active ionic liquid, 1-hexadecyl-3-methylimidazolium bromide (C16mimBr) has been chosen as the main surfactant because it is non-volatile, nonflammable, and able to withstand high temperature. However, it has been studied that this ionic liquid poses a major threat to the aquatic environment, thus another surfactant is needed as a cosurfactant. Lauryl glucoside was used as the cosurfactant because it is environmentally friendly, has low toxicity and excellent biodegradability. The potential of this surfactant mixture for enhanced oil recovery (EOR) application was investigated by conducting stages of phase behaviour study, specifically using the phase diagram method. The optimized formulation C16mimBr-lauryl glucoside microemulsion consists of 4 wt% salinity, 0.5 wt% C16mimBr, and 1 wt% lauryl glucoside were determined based on the appearance of a high volume of middle phase microemulsion in a wide range of oleic phase. The performance of the microemulsion system in reducing IFT was measured using a spinning drop tensiometer at room temperature. The presence of lauryl glucoside as a cosurfactant shows a decent performance in reducing IFT, thus showing the great potential of this biosurfactant, replacing traditional alcohol. It is concluded that the formulation of C16mimBr-lauryl glucoside microemulsion with optimized parameters reaches low IFT instead of ultralow. The critical micelle concentration was determined to be at 0.05 wt% of the aqueous phase.Keywords: enhanced oil recovery, surfactant, Ionic liquid, alkyl polyglucoside

An advanced 3D gel cathode with continuous ion and electron transport pathway for solid-state lithium batteries

Ta-doped Li7La3Zr2O12 (LLZTO) is known as a garnet-type solid-state electrolyte with high ionic conductivity and good stability against lithium metal anode, which is regarded as one of the most promising electrolytes for the commercialization of solid-state batteries (SSBs). However, the poor electron and ion transport among cathode active material particles, as well as the large interfacial impedance between LLZTO ceramic pellet and cathode, remain major issues for SSBs. In this work, we proposed a novel 3D gel cathode based on the “cation-π” interaction between the organic cations in ionic liquid (IL) and the large electron-rich π-system in single-walled carbon nanotubes (SWNTs). The designed gel cathode, which is composed of SWNTs, IL and LiFePO4 (LFP) without binder, possesses a good wettability with the LLZTO ceramic pellet and affords highly efficient conductive pathways for electrons and ions through the interface and entire cathode. As a consequence, the assembled SSBs with the gel cathode exhibit excellent long-term cycling stability with a high capacity retention of 91.74% after 700 cycles at 0.5C, and a high coulombic efficiency close to 100% can be achieved over the course of cycling at 25 °C.

High‐pressure infrared spectroscopy of ionic liquids mixed with Tween 80

AbstractIn this study, the possibility of using Tween 80 to disturb the microstructures of 1‐butyl‐3‐methylimidazolium tetrafluoroborate ([BMIM]BF4) and 1‐butyl‐3‐methylimidazolium hexafluorophosphate ([BMIM]PF6) was investigated under high pressures. The imidazolioum CH absorptions of pure ionic liquids (ILs) are significantly blue‐shifted under high pressures. However, mild changes in imidazolioum CH stretching frequencies were observed for IL/Tween 80 mixtures. Tween 80 may hinder cations of ILs to form network structures with anions under high pressures via pressure‐enhanced cation‐Tween 80 interactions. Based on the experimental results, Tween 80‐[BMIM]PF6 interactions are more effective in disturbing the local structure of imidazolium CH than Tween 80‐[BMIM]BF4 interactions.

Aqueous liquid chromatography with mobile phases of sodium dodecyl sulphate and ionic liquid

In conventional reversed-phase liquid chromatography (RPLC) with hydro-organic solvents, basic cationic solutes yield retained, broad, asymmetric peaks, owing to their interaction with free anionic silanols in the stationary phase. RPLC mobile phases to which the anionic surfactant sodium dodecyl sulphate (SDS), or an ionic liquid (IL) are added, have been proposed as solutions, since these additives are able to block the silanol effect thus improving the chromatographic performance. With these additives, it is however necessary to increase the elution strength by adding an organic solvent, such as an alcohol or acetonitrile. A novel aqueous liquid chromatographic mode (in the absence of organic solvent) is here proposed, where the mobile phases contain only a mixture of aqueous solutions of SDS and an IL derived from 1-alkyl-3-methylimidazolium associated to chloride, both environmentally friendly. When these reagents are added, the anionic surfactant adsorbed on the stationary phase is able to attract the cationic solutes, whereas the adsorbed IL cation repels them. The combination of both effects (attraction and repulsion) allows the modulation of retention, by varying the IL/SDS ratio. Given the character of the additives, a type of green liquid chromatography is achieved. In this work, the chromatographic behavior of six basic compounds of pharmaceutical interest, the β-adrenoceptor antagonists acebutolol, atenolol, carteolol, metroprolol, oxprenolol and propranolol, is examined. In order to assess the chromatographic behavior of the mixed mobile phases containing SDS and IL, changes in retention, peak profile and resolution of mixtures of the analytes were explored at varying concentration of the additives.

The density and dynamic viscosity for dilute solutions of [Emim][NTf2] [Bmim][NTf2], and [Bmmim][NTf2] in ethylene glycol

In this paper, three dilute solutions were prepared and studied for density and dynamic viscosity measurement at different temperature ranges and molality ranges. The three dilute solutions are imidazolium cation ionic liquids (ILs) and ethylene glycol (EG). The measured temperature ranges are (293.15–328.15) K for density and (298.15–328.15) K for dynamic viscosity, respectively. The molality ranges of IL in EG are (0.0100–0.5001) mol∙kg−1. The ILs cations are 1-ethyl-3-methylimidazolium, 1-buty-3-methylimidazolium, and 1-butyl-2,3-dimethylimidazolium and anion is bis[(trifluoromethyl)sulfonyl]imide. The molality concentration dependence on apparent molar volume was fitted according to the Redlich-Rosenfeld-Meyer (RRM) equation. The obtained fitted values of apparent molar volumes of infinite dilution (VΦ0/m3∙mol-1), Sv/m3∙mol-3/2∙kg1/2, and Bv/m3∙mol-2∙kg were used for analysis of ion-solvent interaction and ion-ion interaction in solution. The relative viscosities have also been calculated from the dynamic viscosities at different temperatures and substance concentrations. The relationship between the relative viscosity and substance concentration of diluted solution has been characterized by the Jones–Dole equation. The fitted parameters of D and F from the Jones-Dole equation were used for the analysis of interaction changing of solute-solute and solute-solvent. The group introduction of –CH2- (methylene) on position 1 and –CH3 (methyl) on position 2 of imidazolium cation have also been discussed for interaction changing in IL and EG solvent solution. Through the analysis of IL microstructure change, the interaction forces were also described and discussed for the studied solutions.