Liquid Structure of Ionic Liquids with [NTf₂]^- Anions, Derived from Neutron Scattering.

ABSTRACT: The liquid structure of three common ionic liquids (ILs) was investigated by neutron scattering for the first time. The ILs were based on the bis(trifluoromethanesulfonyl)imide anion, abbreviated in the literature as [NTf₂]^- or [TFSI]^-, and on the following cations: 1-ethyl-3-methylimidazolium, [C₂mim]⁺; 1-decyl-3-methylimidazolium, [C₁₀mim]⁺; and trihexyl(tetradecyl)phosphonium, [P_666,14]⁺. Comparative analysis of the three ILs confirmed increased size of nonpolar nanodomains with increasing bulk of alkyl chains. It also sheds light on the cation-anion interactions, providing experimental insight into strength, directionality, and angle of hydrogen bonds between protons on the imidazolium ri

SUBMITTER: McGrogan A 

PROVIDER: S-EPMC11000221 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature