The dynamics of cations in pyridinium-based ionic liquids by means of quasielastic- and inelastic neutron scattering

摘要: Abstract Neutron scattering is an excellent tool to study the dynamics of hydrogen-rich materials. In present work we subsume our results on pyridinium-based ionic liquids. We have performed inelastic, quasielastic and elastic. elastic neutron experiments aiming understand different dynamical processes that occur at temperatures in Using obtained data can be described as a superposition localized long range diffusion. The processes, which originate from alkyl chain pyridinium ring cation, been modelled terms so-called Gaussian model. influence length chain, attached discussed detail. Furthermore show backscattering data, partially deuterated samples, clearly demonstrate melting activation methyl end-group rotations low temperatures. Finally, power deuterium labelling evidenced for inelastic data.