Category: 79917-89-8

New membranes based on ionic liquids for PEM fuel cells at elevated temperatures was written by Ye, H.;Huang, J.;Xu, J. J.;Kodiweera, N. K. A. C.;Jayakody, J. R. P.;Greenbaum, S. G.. And the article was included in Journal of Power Sources in 2008.Related Products of 79917-89-8 This article mentions the following:

Proton exchange membrane (PEM) fuel cells operating at elevated temperature, above 120 °C, will yield significant benefits but face big challenges for the development of suitable PEMs. The objectives of this research are to demonstrate the feasibility of the concept and realize [acid/ionic liquid/polymer] composite gel-type membranes as such PEMs. Novel membranes consisting of anhydrous proton solvent H₃PO₄, the protic ionic liquid PMIH₂PO₄, and polybenzimidazole (PBI) as a matrix have been prepared and characterized for PEM fuel cells intended for operation at elevated temperature (120-150 °C). Phys. and electrochem. analyses have demonstrated promising characteristics of these H₃PO₄/PMIH₂PO₄/PBI membranes at elevated temperature The proton transport mechanism in these new membranes has been investigated by Fourier transform IR and NMR spectroscopic methods. In the experiment, the researchers used many compounds, for example, 1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8Related Products of 79917-89-8).

1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. Imidazole derivatives have antibacterial, antifungal and anticancer functionality. It interacts with DNA and also binds to protein and stops cell division.Related Products of 79917-89-8

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Predicting Toxicity of Ionic Liquids in Acetylcholinesterase Enzyme by the Quantitative Structure-Activity Relationship Method Using Topological Indexes was written by Yan, Fangyou;Xia, Shuqian;Wang, Qiang;Ma, Peisheng. And the article was included in Journal of Chemical & Engineering Data in 2012.HPLC of Formula: 79917-89-8 This article mentions the following:

A new topol. index (TI) was proposed based on atom characters (e.g., atom radius, atom electronegativity, etc.) and atom positions in the hydrogen-suppressed mol. structure in our previous work. In this work, the TI was used for predicting the toxicity of ILs in acetylcholin esterase (log EC₅₀ AChE) by the multiple linear regression (MLR) method. For ILs composed entirely of cations and anions, the TIs are calculated from cations and anions, resp. The 221 ILs used in the MLR model are based on imidazolium (Im), pyridinium (Pyi), pyrrolidinium (Pyo), ammonium (Am), phosphonium (Ph), quinolinium (Qu), piperidinium (Pi), and morpholinium (Mo). The regression coefficient (R²) and the overall average absolute error (AAE) are 0.877 and 0.153, resp. In the experiment, the researchers used many compounds, for example, 1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8HPLC of Formula: 79917-89-8).

1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8) belongs to imidazole derivatives. 1H-imidazole is an imidazole tautomer which has the migrating hydrogen at position 1. It is a conjugate base of an imidazolium cation. It is a conjugate acid of an imidazolide. It is a tautomer of a 4H-imidazole. The pharmacophore of imidazole exists in bioactive compounds including amino acids, plant growth regulators and therapeutic agents.n increase of the alkyl chain length of the alcohols. HPLC of Formula: 79917-89-8

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Insight into the role of ion-pairing in the adsorption of imidazolium derivative-based ionic liquids by activated carbon was written by Liu, Mengping;Zhu, Ling;Zhang, Xiaoxian;Han, Wenhui;Qiu, Yuping. And the article was included in Science of the Total Environment in 2020.Product Details of 79917-89-8 This article mentions the following:

The association of the cation and anion of ionic liquids (ILs) dominates the absorbability of ILs by activated carbon (AC). Nevertheless, the mechanism behind the role of ion-pairs is largely unknown. In this study, the adsorption of a series of imidazolium derivative-based ILs by AC was involved in response to the octanol-water partition coefficient (K_OW), hydrogen bonding acidity (伪), ion-pair binding constants (K_IP), binding energy of ion-pairs (E_binding) and d. functional theory (DFT) calculation of ILs. A significant pos. correlation between lg K_OW and K_d and between K_IP and lg K_OW was observed (p < 0.05). However, both E_binding and 伪 was inversely proportional to K_IP. Hence, the substitution of oxygen-containing functional groups, such as carboxyethyl, 1-methoxyethyl, and 1-(ethoxycarbonyl)methyl, on imidazolium ring enhanced the hydrogen bond interaction with water mols. and then weakened the binding of imidazolium cation and [NTf₂]^–, thereby reducing the adsorption of ILs to AC. DFT calculation further revealed that the polar substitution improved the electron d. and electronegativity of imidazolium skeleton. By contrast, the ILs functionalized with non-polar groups (e.g., Bu, allyl, and benzyl) generally displayed high K_IP values and low 伪 values. Consequently, the formation of hydrogen bond between the oxygen-containing functional groups of IL cation and water would facilitate the dissociation of IL ion-pairs and then decrease the adsorption of ILs on AC. In the experiment, the researchers used many compounds, for example, 1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8Product Details of 79917-89-8).

1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8) belongs to imidazole derivatives. The solubility of imidazoles in ethers is lower than that in alcohols and decreases with increasing chain length of the ethers . In contrast, the solubility of benzimidazoles in alcohols (C3鈥揅6) is higher than in water and generally decreases with a Imidazole is incorporated into many important biological compounds. The most pervasive is the amino acid histidine, which has an imidazole side-chain. Histidine is present in many proteins and enzymes, e.g. by binding metal cofactors, as seen in hemoglobin.Product Details of 79917-89-8

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

N-Heterocyclic carbenes – catalysts for the preparation of polyhedral silsesquioxanes was written by Kozelj, Matjaz;Orel, Boris. And the article was included in Dalton Transactions in 2013.Synthetic Route of C7H13ClN2 This article mentions the following:

N-Heterocyclic carbenes could be used as powerful catalysts for the preparation of various polyhedral silsesquioxanes. NHCs also catalyze a rearrangement of existing cages and a scrambling between two different cages at a concentration as low as 1 mol%. In the experiment, the researchers used many compounds, for example, 1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8Synthetic Route of C7H13ClN2).

1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8) belongs to imidazole derivatives. 1H-imidazole is an imidazole tautomer which has the migrating hydrogen at position 1. It is a conjugate base of an imidazolium cation. It is a conjugate acid of an imidazolide. It is a tautomer of a 4H-imidazole. Imidazole is incorporated into many important biological compounds. The most pervasive is the amino acid histidine, which has an imidazole side-chain. Histidine is present in many proteins and enzymes, e.g. by binding metal cofactors, as seen in hemoglobin.Synthetic Route of C7H13ClN2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Heterogeneous polarity and surface acidity of silica-organic materials with fixed 1-n-propyl-3-methylimidazolium chloride as probed by solvatochromic and fluorescent dyes was written by Khristenko, I. V.;Panteleimonov, A. V.;Iliashenko, R. Yu.;Doroshenko, A. O.;Ivanov, V. V.;Tkachenko, O. S.;Benvenutti, E. V.;Kholin, Yu. V.. And the article was included in Colloids and Surfaces, A: Physicochemical and Engineering Aspects in 2018.Recommanded Product: 79917-89-8 This article mentions the following:

A new silica-organic hybrid material with fixed ionic liquid 1-n-propyl-3-methylimidazolium chloride has been synthesized by the sol-gel method. Its sp. surface area is 22 m² g^-1, average pore diameter is 8 nm and pore volume is 0.05 cm³ g^-1. According to the results of ¹³C NMR spectroscopy, the fixed 1-n-propyl-3-methylimidazolium cationic group is bound with the siloxane framework via one Si-C covalent bond. Properties of the new material were compared with that of its analog, silica with the same modifier covalently grafted at the surface. With the use of the ²⁹Si NMR spectroscopy it was clearly indicated that at the surfaces of both materials silanol groups dominate among all silicon containing groups. The surface polarity was characterized by probing the materials with the solvatochromic Reichardt’s dyes, and the heterogeneous polarity of the near-surface layers has been detected. The values of the normalized Dimroth-Reichardt parameter for three surface regions of different polarities are 0.9-1.0, 0.65 and 0.4. The presence of rather acidic surface silanol groups revealed from probing these materials with solvatochromic dyes was verified with the application of acid-base fluorescent dyes of 2,5-diaryl-1,3-oxazole series having pK_a 4.5-4.8 in ethanol/water medium. The fluorescence spectroscopy experiments have proved unambiguously that surface silanol groups predetermine the possibility of coexistence of the conjugated Bronsted basic and acidic forms of the oxazolic dyes in the near-surface layers. In the experiment, the researchers used many compounds, for example, 1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8Recommanded Product: 79917-89-8).

1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8) belongs to imidazole derivatives. Imidazole is the basic core of some natural products such as histidine, purine, histamine and DNA based structures, etc. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes.Recommanded Product: 79917-89-8

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Substituent Effect of Imidazolium Ionic Liquid: A Potential Strategy for High Coulombic Efficiency Al Battery was written by Yang, Congrong;Wang, Suli;Zhang, Xiaoming;Zhang, Qiang;Ma, Wenjia;Yu, Shansheng;Sun, Gongquan. And the article was included in Journal of Physical Chemistry C in 2019.Name: 1-Methyl-3-propylimidazolium Chloride This article mentions the following:

The chem. structure-effect relationship between imidazolium ion liquid and the properties of electrolyte or Al battery is first completely revealed. First, it is proved that there indeed exsits an interaction between imidazolium cation and chloroaluminate anions (active ions, Al₂Cl₇^– and AlCl₄^–), blocking their reaction in the anode or pos. electrode. Second, by introducing the substituent effect, which could enhance the steric hindrance and change the detailed electronic distribution of imidazolium cations, the intermol. force between imidazolium cations and chloroaluminate anions is effectively weakened. As a result, the electrodeposition achievement, electrodeposition/electrostripping reversibility of aluminum, and intercalation/deintercalation capacity of AlCl₄^– in the pos. electrode are significantly improved. Therefore, the as-assembled battery with AlCl₃/[MPIM]Cl electrolyte shows an 鈭?00% CE. This work provides a potential approach on how to enhance the performance of Al battery by designing the ionic liquid structure. In the experiment, the researchers used many compounds, for example, 1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8Name: 1-Methyl-3-propylimidazolium Chloride).

1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8) belongs to imidazole derivatives. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole has become an important synthon in the development of new drugs. Imidazole based anticancer drug find applications in cancer chemotherapy. It is used as buffer component for purification of the histidine tagged recombinant proteins in immobilized metal-affinity chromatography (IMAC).Name: 1-Methyl-3-propylimidazolium Chloride

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Nano/microtribological properties of ultrathin functionalized imidazolium wear-resistant ionic liquid films on single crystal silicon was written by Mo, Yufei;Zhao, Wenjie;Zhu, Min;Bai, Mingwu. And the article was included in Tribology Letters in 2008.Computed Properties of C7H13ClN2 This article mentions the following:

Ionic liquids (ILs) are considered as a new kind of lubricant for micro/nanoelectromech. system (M/NEMS) due to their excellent thermal and elec. conductivity However, so far, only few reports have investigated the triboltribol. behavior of mol. thin films of various ILs. Evaluating the nanoscale tribol. performance of ILs when applied as a few nanometers-thick film on a substrate is a critical step for their application in MEMS/NEMS devices. To this end, four kinds of ionic liquid carrying Me, hydroxyl, nitrile, and carboxyl group were synthesized and these mol. thin films were prepared on single crystal silicon wafer by dip-coating method. Film thickness was determined by ellipsometric method. The chem. composition and morphol. were characterized by the means of multi-technique X-ray photoelectron spectrometric anal., and at. force microscopic (AFM) anal., resp. The nano- and microtribol. properties of the ionic liquid films were investigated. The morphologies of wear tracks of IL films were examined using a 3D non-contact interferometric microscope. The influence of temperature on friction and adhesion behavior at nanoscale, and the effect of sliding frequency and load on friction coefficient, load bearing capacity, and anti-wear durability at microscale were studied. Corresponding tribol. mechanisms of IL films were investigated by AFM and ball-on-plane microtribotester. Friction reduction, adhesion resistance, and durability of IL films were dependent on their cation chem. structures, wettability, and ambient environment. In the experiment, the researchers used many compounds, for example, 1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8Computed Properties of C7H13ClN2).

1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. The pharmacophore of imidazole exists in bioactive compounds including amino acids, plant growth regulators and therapeutic agents.n increase of the alkyl chain length of the alcohols. Computed Properties of C7H13ClN2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Inelastic neutron scattering study on boson peaks of imidazolium-based ionic liquids was written by Kofu, Maiko;Inamura, Yasuhiro;Moriya, Yosuke;Podlesnyak, Andrey;Ehlers, Georg;Yamamuro, Osamu. And the article was included in Journal of Molecular Liquids in 2015.Reference of 79917-89-8 This article mentions the following:

Low energy excitations of 1-alkyl-3-methylimidazolium ionic liquids (ILs) have been investigated by means of neutron spectroscopy. In the spectra of inelastic scattering, a broad excitation peak referred to as a “boson peak” appeared at 1-3 meV in all of the ILs measured. The intensity of the boson peak was enhanced at the Q positions corresponding to the diffraction peaks, reflecting the in-phase vibrational nature of the boson peak. Furthermore the boson peak energy (E_BP) was insensitive to the length of the alkyl-chain but changed depending on the radius of the anion. From the correlation among E_BP, the anion radius, and the glass transition temperature T_g, we conclude that both E_BP and T_g in ILs are predominantly governed by the inter-ionic Coulomb interaction which is less influenced by the alkyl-chain length. We also found that the E_BP is proportional to the inverse square root of the mol. weight as observed in mol. glasses. In the experiment, the researchers used many compounds, for example, 1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8Reference of 79917-89-8).

1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. Imidazole derivatives have antibacterial, antifungal and anticancer functionality. It interacts with DNA and also binds to protein and stops cell division.Reference of 79917-89-8

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Dehydration of glucose and fructose into 5-hydroxymethylfurfural catalyzed by Lewis acid in ionic liquids was written by Tian, Yukui;Deng, Jin;Pan, Tao;Guo, Qingxiang;Fu, Yao. And the article was included in Cuihua Xuebao in 2011.Application of 79917-89-8 This article mentions the following:

A variety of Lewis acids have been examined for the transformation of glucose and fructose into 5-hydroxymethylfurfural (5-HMF) in ionic liquids (ILs). SnCl_n, and CrCl_n are effective catalysts for the isomerization, and Lewis acids with strong acidity can facilitate the dehydration of fructose. The influence of ILs structure, including the length of alkyl side chain and halide anions, on the conversion was also studied. A distinct odd-even carbon-atom-number effect is observed in the conversion of glucose to 5-HMF and the imidazolium bromides with short alkyl side-chains can provide a higher yield of 5-HMF from fructose. In the presence of 1-ethyl-3-methylimidazolium bromide ([C₂MIM]Br) and SnCl₂, the yields of 5-HMF are 65% and 73% from glucose and fructose, resp. In the experiment, the researchers used many compounds, for example, 1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8Application of 79917-89-8).

1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. This ring system is present in important biological building blocks, such as histidine and the related hormone histamine.Application of 79917-89-8

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Synergy of ionic liquid and confinement in the design of supported palladium catalyst for efficient selective hydrogenation of acetylene was written by Wang, Qingtao;Xu, Yiqi;Zhou, Jing;Xu, Longyu;Yu, Lu;Jiang, Dahao;Lu, Chunshan;Pan, Zhiyan;Zhang, Qunfeng;Li, Xiaonian. And the article was included in Journal of Industrial and Engineering Chemistry (Amsterdam, Netherlands) in 2021.Related Products of 79917-89-8 This article mentions the following:

We present here a novel fabrication of highly effective supported Pd catalysts (Pd@S-1@IL) derived from Pd@S-1 core-shell material coated with ionic liquids (ILs), [Prmim][Cl], for the selective hydrogenation of acetylene. Catalytic testing on Pd@S-1@IL catalyst illustrated a remarkable selectivity towards semi-hydrogenation (over 90% for ethylene, irresp. of conversion level). Moreover, no indications of deactivation were observed after 800 h on stream even under relatively severe conditions. Detailed characterization indicated that the selectivity enhancement was ascribed to the filter effect along with electronic effect on the adsorption/desorption processes arising from the ionic liquids layer. The stability, which has ranked the top reported values over advanced Pd-based catalysts, is attributed to the confinement effect of Pd NPs within the supports thus restricting the migration of metals. The fabrication of core-shell architecture combined with the advantages of ionic liquid layer offers a promising guideline for efficient catalytic transfer of chem. resource. In the experiment, the researchers used many compounds, for example, 1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8Related Products of 79917-89-8).

1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8) belongs to imidazole derivatives. Imidazole is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. Imidazole derivatives have antibacterial, antifungal and anticancer functionality. It interacts with DNA and also binds to protein and stops cell division.Related Products of 79917-89-8

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem