نتایج جستجو برای: methyl imidazolium hydrogen sulfate
تعداد نتایج: 304872 فیلتر نتایج به سال:
In the title compound {(C3H5N2)[Na(NO3)2]} n , the Na(I) ion is coordinated by eight O atoms from three bidentate nitrate anions and two O atoms from two monodentate nitrate anions, displaying a bicapped trigonal-prismatic geometry. The imidazolium cation is essentially planar (r.m.s. deviation for all non-H atoms = 0.0018 Å). In the crystal, the Na(I) ions are connected by bridging nitrate lig...
The complexation behaviour of an imidazolium based ionic liquid surfactant (ILS) 3-methyl-1-dodecylimidazolium chloride, [C12mim][Cl], and its amide and ester functionalized counterparts 3-(2-(dodecylamino)-2-oxoethyl)-1-methyl-1H-imidazol-3-ium chloride, [C12Amim][Cl], and 3-methyl-1-dodecyloxycarbonylmethylimidazolium chloride, [C12Emim][Cl], with a model protein gelatin (G) in aqueous soluti...
In the title compound, C(24)H(28)N(4)O(2) (2+)·2Br(-), the imidazolium cation is located on an inversion centre. The two imidazole rings are parallel to each other, whereas the imidazole and benzene rings make a dihedral angle of 77.25 (16)°. Non-classical inter-molecular C-H⋯Br hydrogen bonds link the imidazolium cations and the bromide anions into a three-dimensional network.
In this paper, we have examined the conductivity and interaction studies of ammonium and imidazolium based ionic liquids (ILs) with the newly synthesised low bandgap polymer (Poly(2-heptadecyl-4-vinylthieno[3,4-d]thiazole) (PHVTT)). Use of low bandgap polymers is the most suitable way to harvest a broader spectrum of solar radiations for solar cells. But, still there is lack of most efficient l...
173.345 Chloropentafluoroethane. 173.350 Combustion product gas. 173.355 Dichlorodifluoromethane. 173.356 Hydrogen peroxide. 173.357 Materials used as fixing agents in the immobilization of enzyme preparations. 173.360 Octafluorocyclobutane. 173.368 Ozone. 173.370 Peroxyacids. 173.375 Cetylpyridinium chloride. 173.385 Sodium methyl sulfate. 173.395 Trifluoromethane sulfonic acid. 173.400 Dimeth...
a highly efficient and simple method for the preparation of α,α´-bis(arylidene)cycloalkanones under solvent-free conditions has been developed. the crossed-aldol condensation of cycloalkanones (1 eq.) with arylaldehydes (2 eq.) in the presence of 2.5 mol% of ionic liquid 1,3-disulfonic acid imidazolium hydrogen sulfate {[dsim]hso4} afforded the title compounds in high yields and short reaction ...
The uptake of methanol at the air-liquid interface of 0-96.5 wt % sulfuric acid (H2SO4) solutions has been observed directly using vibrational sum frequency generation (VSFG) spectroscopy. As the concentration of H2SO4 increases, the VSFG spectra reveal a surface reaction between methanol and H2SO4 to form methyl hydrogen sulfate. The surface is saturated with the methyl species after 15 min. T...
in the title compound, C(16)H(15)N(2) (+)·PF(6) (-), a precursor of N-heterocyclic carbene, the phenyl and benzyl rings are twisted away from the central imidazolium ring system, making dihedral angles of 70.30 (8) and 32.03 (10)°, respectively. The crystal structure is stabilized by C-H⋯F hydrogen bonds. Furthermore, P-F⋯π inter-actions involving imidazolium rings are observed [F⋯π = 2.9857 (1...
The hydrogen bond interactions between methyl-imidazolium cation (MIM+) and fatty acid anions (CmHnCOO–, where m = 1–6; n-3–13) of ionic liquids are studied in both gas phase water using density functional theory. structural properties show that the presence N–H···O C–H···O bonds [MIM]+ [CmHnCOO]– (m liquids. From vibrational frequency analysis, it was found interaction red-shifted frequency. n...
Imidazolium ion-terminated self-assembled monolayer (SAM)-modified electrodes achieve CO2 conversion while suppressing hydrogen evolution. Immobile imidazolium ion on gold (Au) electrodes reduce CO2 at low overpotential. The distance between electrode and imidazolium ion separated by alkane thiol affects CO2 reduction activity. CO2 reduction current depends on the tunnel current rate. Although ...
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