CD Stretching Modes are Sensitive to the Microenvironment in Ionic Liquids.

ABSTRACT: Knowledge of the structure of the electrical double layer in ionic liquids (IL) is crucial for their applications in electrochemical technologies. We report the synthesis and applicability of an imidazolium-based amphiphilic ionic liquid with a perdeuterated alkyl chain for studies of electric potential-dependent rearrangements, and changes in the microenvironment in a monolayer on a Au(111) surface. Electrochemical measurements show two states of the organization of ions on the electrode surface. In situ IR spectroscopy shows that the alkyl chains in imidazolium cations change their orientation depending on the adsorption state. The methylene-d₂ stretching modes in the perdeuterated IL display a reversible, potential-dependent appearance of a new band. The presence of this mode

SUBMITTER: Sieling T 

PROVIDER: S-EPMC9298891 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature