The dynamics of cations in pyridinium-based ionic liquids by means of quasielastic- and inelastic neutron scattering was written by Burankova, Tatsiana;Reichert, Elena;Fossog, Verlaine;Hempelmann, Rolf;Embs, Jan Peter. And the article was included in Journal of Molecular Liquids in 2014.SDS of cas: 104-73-4 This article mentions the following:
Neutron scattering is an excellent tool to study the dynamics of hydrogen-rich materials. In the present work we subsumed our results on pyridinium-based ionic liquids We have performed inelastic, quasielastic and elastic neutron scattering experiments aiming to understand the different dynamical processes that occur at different temperatures in ionic liquids Using quasielastic scattering we obtained data that can be described as a superposition of localized dynamical processes and long range diffusion. The localized processes, which originated from the alkyl chain and the pyridinium ring of the cation, have been modelled in terms of the so-called Gaussian model. The influence of the length of the alkyl chain, attached to the cation, on the dynamical processes was discussed in detail. Furthermore we show neutron backscattering data, obtained on partially deuterated samples, that clearly demonstrate the melting of the alkyl chain and the activation of Me end-group rotations at low temperatures Finally, the power of deuterium labeling was evidenced for inelastic neutron scattering data. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4SDS of cas: 104-73-4).
1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. The lone pair is in an sp2 orbital, projecting outward from the ring in the same plane as the σ bonds. Pyridine groups exist in countless molecules, and their applications include catalysis, drug design, molecular recognition, and natural product synthesis.SDS of cas: 104-73-4