《Para-xylyl linked bis-imidazolium ionic liquids: A study of the conformers of the cation and of the anion-cation hydrogen bonding》 was written by Haddad, Boumediene; Paolone, Annalisa; Drai, Mokhtar; Boumediene, Mostefa; Villemin, Didier; Belarbi, El-habib; Rahmouni, Mustapha; Bresson, Serge; Abbas, Ouissam. Recommanded Product: 616-47-7This research focused onxylyl imidazolium ionic liquid hydrogen bond conformer Raman spectrum. The article conveys some information:
In this work, two new para-xylyl linked bis-imidazolium Ionic Liquids (DILs), namely [p-C6H4(CH2ImMe)2][Cl2-] and [p-C6H4(CH2ImMe)2+][BF4-]2, are prepared from imidazolium salts using a simple procedure in two steps. A computational study of the conformers of [p-C6H4(CH2ImMe)2], performed by means of DFT calculations with the 6-31G** basis set and the B3LYP theory, evidences that nine possible geometries of the cation are stable points of the potential energy surface and, therefore, could be exptl. found in real compounds The IR and Raman spectra of the nine conformers are calculated and compared to the exptl. data. The occurrence of the trans configuration of the imidazolium rings in both compounds is strongly supported by this comparison. Finally, the cation-anion interactions were investigated in both DILs by means of NMR and Raman measurements, with a particular attention to the occurrence of hydrogen bonding. Both techniques indicate that hydrogen bonding is stronger in the sample containing Cl as anion. Moreover, the preferred site for hydrogen bonding is the C2 proton of the imidazolium ring; however, also the C(4) and C(5) protons of imidazolium, the methylene group and the Ph ring participate to the hydrogen bonding.1-Methyl-1H-imidazole(cas: 616-47-7Recommanded Product: 616-47-7) was used in this study.
1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Recommanded Product: 616-47-7
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem