The Gelling Ability of Some Diimidazolium Salts: Effect of Isomeric Substitution of the Cation and Anion was written by D’Anna, Francesca;Vitale, Paola;Ferrante, Francesco;Marullo, Salvatore;Noto, Renato. And the article was included in ChemPlusChem in 2013.Electric Literature of C11H20N2 This article mentions the following:
The gelling ability of some geminal imidazolium salts was studied both in organic solvents and in water solution Organic salts differing either in the cation or anion structure were taken into account. In particular, the effects on the gel-phase formation of isomeric substitution on the cation or anion and of the use of mono- or dianions were evaluated. As far as the cation structure is concerned, isomeric cations, such as 3,3′-di-n-octyl-1,1′-(1,4-phenylenedimethylene)diimidazolium and 3,3′-di-n-octyl-1,1′-(1,3-phenylenedimethylene)diimidazolium, were used. However, in addition to the bromide anion, isomeric dianions, such as the 1,5- and 2,6-naphthalenedisulfonate anions, were also examined After preliminary gelation tests, different factors affecting the obtained gel phases, such as the nature of the solvent, organogelator concentrations, and action of external stimuli, were analyzed. The gel-phase formation was also studied as a function of time, by using resonance light scattering measurements. Gel morphologies were analyzed by SEM. To further support the understanding of the different behavior shown by the isomeric cations, some representative ion pairs were analyzed by DFT-based studies. The collected data underline the significant role played by isomeric substitution of both cation and anion structures in determining the gelling capability of the studied salts, as well as the properties of the gel phases. Finally, DFT studies were helpful in the identification of the structural features affecting the self-assembly. In the experiment, the researchers used many compounds, for example, 1-Octyl-1H-imidazole (cas: 21252-69-7Electric Literature of C11H20N2).
1-Octyl-1H-imidazole (cas: 21252-69-7) 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 also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes.Electric Literature of C11H20N2
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem