1-Ethyl-1-methylpyrrolidinium iodide, CAS: 4186-68-9

Key Applications:

Electrochemical Systems

• Serves as a quaternary ammonium iodide salt for use in electrolyte formulation, particularly where iodide anions support redox mediation or halide exchange.
• Utilized in reference electrolyte studies to evaluate cation–anion interactions, ionic mobility, and conductivity trends within pyrrolidinium-based salts.
• Supports electrode interface investigations, including adsorption behavior and halide-driven surface modification.

Materials Science and Ion Transport Studies

• Employed as a model ionic species in transport, viscosity, and ion-pairing research, enabling comparison across pyrrolidinium iodide derivatives.
• Useful in solid–liquid interface studies, including polymer–salt compatibility, ion dissociation behavior, and dielectric response mapping.
• Incorporated into polymer electrolyte matrices to probe mechanical and conductive properties influenced by bulky organic cations.

Catalysis and Synthesis

• Functions as a phase-transfer catalyst or halide source in organic transformations requiring iodide-mediated nucleophilicity.
• Supports halide exchange reactions, enabling controlled introduction of iodide into organometallic or coordination complexes.
• Applied in ionic-liquid-assisted synthesis, where the cation structure provides tunable solvation and microenvironment effects.

Photochemical and Redox Applications

• Utilized in iodide/triiodide redox couple studies, including dye-sensitized solar cell research and photoredox benchmarking.
• Suitable for charge-transfer investigations, where iodide’s redox activity and the pyrrolidinium cation’s stability enable reproducible measurements.

Analytical and Spectroscopic Uses

• Serves as a reference iodide salt for calibration, ion-pairing studies, and comparative NMR, FTIR, or Raman analyses.
• Supports solvation and ion-association research, particularly in mixed-solvent systems where cation structure influences iodide behavior.

General Research Utility

• Provides a stable, non-volatile iodide source for halide chemistry, ionic liquid precursor studies, and structure–property mapping across quaternary ammonium salts.
• Suitable for method development in electrochemical, spectroscopic, and materials characterization workflows.

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