نتایج جستجو برای: 2 methylimidazole
تعداد نتایج: 2525412 فیلتر نتایج به سال:
Conductivity and tribological properties of IL-PANI/WS2 composite material in lithium complex grease
Abstract An ionic liquid-polyaniline/tungsten disulfide (IL-PANI/WS 2 ) composite was synthesized in 1-butyl-3-methylimidazole tetrafluoroborate (LB104) aqueous solution by in-situ polymerization and characterized Fourier transform infrared spectroscopy. A current-carrying friction wear tester used to study the tribological properties of steel—steel copper—copper pairs lubricated an IL-PANI/WS ...
In the oxidized "ES" state of cytochrome c peroxidase, Trp-191 is reversibly oxidized to a stable cation free radical by the hypervalent heme. To explore the potential for engineering a binding site for heterocyclic compounds at this site, the mutant W191G was constructed. Two independent crystal structures of W191G at 2.1- and 2.3-A resolution show that W191G contains a well-defined, approxima...
A water-accelerated multi-component synthesis of organic target molecules was used as a key method for the preparation of cyclopentadiene derivatives. The three-component condensation reactions of primary amines with alkyl propiolates in the presence of N-methylimidazole in water at room temperature were developed as efficient and clean green synthetic procedures for the high-yielding preparati...
Ionic liquids (ILs) show promise as safe electrolytes for electrochemical devices. However, the conductivity of ILs decreases markedly at low temperatures because of strong interactions arising between the component ions. Metal-organic frameworks (MOFs) are appropriate microporous host materials that can control the dynamics of ILs via the nanosizing of ILs and tunable interactions of MOFs with...
In this study, cadmium imidazolate frameworks were synthesized by a solvothermal method from acetate and 2-methylimidazole in an ethanol/methanol mixture. The Cd(Im)2 processed at 150 oC after 8 hours with the mixture of solvents has high crystallinity. appearance absorption band 407.73 cm-1 shows link formation Cd (II) N within HIm’s molecule. Cadmium only formats zeolite crystal, network fibe...
A one-pot synthesis ofdimethyl-{3-methyl-2-[(alkoxycarbonyl) anilino]-2,3-dihydro-1Himidazol-1-yl)}-2-butenedioatesanddimethyl-2-[(alkoxycarbonyl)anilino]-2-butenedioates derivatives via reactions between dimethyl acetylenedicarboxylate,1-methylimidazoleand N-phenylcarbamates is described. The mild reaction condition, simple mixing of the starting materials and good yields exhibit the synthetic...
The effects of different I2 concentrations and ionic liquids (ILs) in the electrolyte on performances dye-sensitized solar cells (DSCs) containing an iron(II) N-heterocyclic carbene dye I–/I3– redox shuttle have been investigated. Either no was added to electrolyte, or initial were 0.02, 0.05, 0.10, 0.20 M. short-circuit current density (JSC), open-circuit voltage (VOC), fill factor (ff) influe...
BACKGROUND The in vivo radical-scavenging activity of curcumin (CUR) and THC (tetrahydrocurcumin, a metabolite of CUR) does not occur in isolation, but through an intricate antioxidant network together with co-antioxidants such as glutathiones (GSH). In the present investigation, the radical-scavenging activity of CUR and THC with 2-mercapto-1-methylimidazole (MMI, a thiol) was studied using th...
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